1192886Sedwin# This file is in the public domain, so clarified as of
2192886Sedwin# 2009-05-17 by Arthur David Olson.
364499Swollman
4273718Sedwin# This file is by no means authoritative; if you think you know better,
52742Swollman# go ahead and edit the file (and please send any changes to
6273718Sedwin# tz@iana.org for general use in the future).  For more, please see
7273718Sedwin# the file CONTRIBUTING in the tz distribution.
82742Swollman
9325324Sgordon# From Paul Eggert (2017-01-13):
102742Swollman#
11274559Sedwin# Unless otherwise specified, the source for data through 1990 is:
12158421Swollman# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
13158421Swollman# San Diego: ACS Publications, Inc. (2003).
14274559Sedwin# Unfortunately this book contains many errors and cites no sources.
152742Swollman#
16325324Sgordon# Many years ago Gwillim Law wrote that a good source
17325324Sgordon# for time zone data was the International Air Transport
1820094Swollman# Association's Standard Schedules Information Manual (IATA SSIM),
1920094Swollman# published semiannually.  Law sent in several helpful summaries
20274559Sedwin# of the IATA's data after 1990.  Except where otherwise noted,
21274559Sedwin# IATA SSIM is the source for entries after 1990.
2220094Swollman#
232742Swollman# Another source occasionally used is Edward W. Whitman, World Time Differences,
242742Swollman# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
252742Swollman# I found in the UCLA library.
262742Swollman#
27248307Sedwin# For data circa 1899, a common source is:
28273718Sedwin# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
29325324Sgordon# https://www.jstor.org/stable/1774359
30248307Sedwin#
31273718Sedwin# For Russian data circa 1919, a source is:
32273718Sedwin# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
33273718Sedwin# (See the 'europe' file for a fuller citation.)
34273718Sedwin#
352742Swollman# A reliable and entertaining source about time zones is
3658787Sru# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
372742Swollman#
38325324Sgordon# The following alphabetic abbreviations appear in these tables:
39114173Swollman#	     std  dst
40114173Swollman#	     LMT	Local Mean Time
41114173Swollman#	2:00 EET  EEST	Eastern European Time
42114173Swollman#	2:00 IST  IDT	Israel
43114173Swollman#	5:30 IST	India
44257681Sedwin#	7:00 WIB	west Indonesia (Waktu Indonesia Barat)
45257681Sedwin#	8:00 WITA	central Indonesia (Waktu Indonesia Tengah)
46114173Swollman#	8:00 CST	China
47325324Sgordon#	8:30 KST  KDT	Korea when at +0830
48257681Sedwin#	9:00 WIT	east Indonesia (Waktu Indonesia Timur)
49149590Swollman#	9:00 JST  JDT	Japan
50286750Sedwin#	9:00 KST  KDT	Korea when at +09
51270728Spluknet#	9:30 ACST	Australian Central Standard Time
52325324Sgordon# Otherwise, these tables typically use numeric abbreviations like +03
53325324Sgordon# and +0330 for integer hour and minute UTC offsets.  Although earlier
54325324Sgordon# editions invented alphabetic time zone abbreviations for every
55325324Sgordon# offset, this did not reflect common practice.
562742Swollman#
57270728Spluknet# See the 'europe' file for Russia and Turkey in Asia.
582742Swollman
592742Swollman# From Guy Harris:
602742Swollman# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
612742Swollman# additional information from Tom Yap, Sun Microsystems Intercontinental
622742Swollman# Technical Support (including a page from the Official Airline Guide -
63325324Sgordon# Worldwide Edition).
642742Swollman
652742Swollman###############################################################################
662742Swollman
67270728Spluknet# These rules are stolen from the 'europe' file.
682742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
6920094SwollmanRule	EUAsia	1981	max	-	Mar	lastSun	 1:00u	1:00	S
70158421SwollmanRule	EUAsia	1979	1995	-	Sep	lastSun	 1:00u	0	-
7120094SwollmanRule	EUAsia	1996	max	-	Oct	lastSun	 1:00u	0	-
7220094SwollmanRule E-EurAsia	1981	max	-	Mar	lastSun	 0:00	1:00	S
7320094SwollmanRule E-EurAsia	1979	1995	-	Sep	lastSun	 0:00	0	-
7420094SwollmanRule E-EurAsia	1996	max	-	Oct	lastSun	 0:00	0	-
7520094SwollmanRule RussiaAsia	1981	1984	-	Apr	1	 0:00	1:00	S
7620094SwollmanRule RussiaAsia	1981	1983	-	Oct	1	 0:00	0	-
77309583SglebiusRule RussiaAsia	1984	1995	-	Sep	lastSun	 2:00s	0	-
78325324SgordonRule RussiaAsia	1985	2010	-	Mar	lastSun	 2:00s	1:00	S
79325324SgordonRule RussiaAsia	1996	2010	-	Oct	lastSun	 2:00s	0	-
802742Swollman
812742Swollman# Afghanistan
822742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
832742SwollmanZone	Asia/Kabul	4:36:48 -	LMT	1890
84325324Sgordon			4:00	-	+04	1945
85325324Sgordon			4:30	-	+0430
862742Swollman
872742Swollman# Armenia
88158421Swollman# From Paul Eggert (2006-03-22):
89158421Swollman# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
90158421Swollman# in spring 1991, then to 4:00 with no DST in fall 1995, then
91158421Swollman# readopting Russian DST in 1997.  Go with Shanks & Pottenger, even
92158421Swollman# when they disagree with others.  Edgar Der-Danieliantz
93153670Swollman# reported (1996-05-04) that Yerevan probably wouldn't use DST
9443014Swollman# in 1996, though it did use DST in 1995.  IATA SSIM (1991/1998) reports that
9543014Swollman# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
9643014Swollman# but started switching at 3:00s in 1998.
97233445Sedwin
98233445Sedwin# From Arthur David Olson (2011-06-15):
99233445Sedwin# While Russia abandoned DST in 2011, Armenia may choose to
100233445Sedwin# follow Russia's "old" rules.
101233445Sedwin
102233445Sedwin# From Alexander Krivenyshev (2012-02-10):
103233445Sedwin# According to News Armenia, on Feb 9, 2012,
104233445Sedwin# http://newsarmenia.ru/society/20120209/42609695.html
105240457Sedwin#
106233445Sedwin# The Armenia National Assembly adopted final reading of Amendments to the
107233445Sedwin# Law "On procedure of calculation time on the territory of the Republic of
108233445Sedwin# Armenia" according to which Armenia [is] abolishing Daylight Saving Time.
109233445Sedwin# or
110233445Sedwin# (brief)
111233445Sedwin# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
112325324Sgordon# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
113325324SgordonRule Armenia	2011	only	-	Mar	lastSun	 2:00s	1:00	S
114325324SgordonRule Armenia	2011	only	-	Oct	lastSun	 2:00s	0	-
1152742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1162742SwollmanZone	Asia/Yerevan	2:58:00 -	LMT	1924 May  2
117309583Sglebius			3:00	-	+03	1957 Mar
118309583Sglebius			4:00 RussiaAsia +04/+05	1991 Mar 31  2:00s
119309583Sglebius			3:00 RussiaAsia	+03/+04	1995 Sep 24  2:00s
120309583Sglebius			4:00	-	+04	1997
121325324Sgordon			4:00 RussiaAsia	+04/+05	2011
122325324Sgordon			4:00	Armenia	+04/+05
1232742Swollman
1242742Swollman# Azerbaijan
125309583Sglebius
126153670Swollman# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
127153670Swollman# According to the resolution of Cabinet of Ministers, 1997
128290697Sedwin# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17).
129290697Sedwin# http://code.az/files/daylight_res.pdf
130309583Sglebius
131309583Sglebius# From Steffen Thorsen (2016-03-17):
132309583Sglebius# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
133309583Sglebius# daylight saving time....
134325324Sgordon# https://www.azernews.az/azerbaijan/94137.html
135309583Sglebius# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
136309583Sglebius# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
137309583Sglebius
13843014Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
139309583SglebiusRule	Azer	1997	2015	-	Mar	lastSun	 4:00	1:00	S
140309583SglebiusRule	Azer	1997	2015	-	Oct	lastSun	 5:00	0	-
1412742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1422742SwollmanZone	Asia/Baku	3:19:24 -	LMT	1924 May  2
143309583Sglebius			3:00	-	+03	1957 Mar
144309583Sglebius			4:00 RussiaAsia +04/+05	1991 Mar 31  2:00s
145309583Sglebius			3:00 RussiaAsia	+03/+04	1992 Sep lastSun  2:00s
146309583Sglebius			4:00	-	+04	1996
147309583Sglebius			4:00	EUAsia	+04/+05	1997
148309583Sglebius			4:00	Azer	+04/+05
1492742Swollman
1502742Swollman# Bahrain
151279706Sedwin# See Asia/Qatar.
1522742Swollman
1532742Swollman# Bangladesh
154193785Sedwin# From Alexander Krivenyshev (2009-05-13):
155193785Sedwin# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
156193785Sedwin# Daylight Saving Time from June 16 to Sept 30
157193785Sedwin#
158193785Sedwin# Bangladesh to introduce daylight saving time likely from June 16
159193785Sedwin# http://www.asiantribune.com/?q=node/17288
160193785Sedwin# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html
161193785Sedwin#
162193785Sedwin# "... Bangladesh government has decided to switch daylight saving time from
163193785Sedwin# June
164193785Sedwin# 16 till September 30 in a bid to ensure maximum use of daylight to cope with
165193785Sedwin# crippling power crisis. "
166193785Sedwin#
167193785Sedwin# The switch will remain in effect from June 16 to Sept 30 (2009) but if
168193785Sedwin# implemented the next year, it will come in force from April 1, 2010
169193785Sedwin
170193785Sedwin# From Steffen Thorsen (2009-06-02):
171193785Sedwin# They have finally decided now, but changed the start date to midnight between
172193785Sedwin# the 19th and 20th, and they have not set the end date yet.
173193785Sedwin#
174193785Sedwin# Some sources:
175325324Sgordon# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
176193785Sedwin# http://bdnews24.com/details.php?id=85889&cid=2
177193785Sedwin#
178193785Sedwin# Our wrap-up:
179325324Sgordon# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
180193785Sedwin
181194485Sedwin# From A. N. M. Kamrus Saadat (2009-06-15):
182240457Sedwin# Finally we've got the official mail regarding DST start time where DST start
183240457Sedwin# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
184240457Sedwin# Telecommunication Regulatory Commission).
185194485Sedwin#
186194485Sedwin# No DST end date has been announced yet.
187193785Sedwin
188198270Sedwin# From Alexander Krivenyshev (2009-09-25):
189240457Sedwin# Bangladesh won't go back to Standard Time from October 1, 2009,
190240457Sedwin# instead it will continue DST measure till the cabinet makes a fresh decision.
191198270Sedwin#
192198270Sedwin# Following report by same newspaper-"The Daily Star Friday":
193198270Sedwin# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1"
194198270Sedwin# http://www.thedailystar.net/newDesign/news-details.php?nid=107021
195198270Sedwin# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html
196196581Sedwin
197198270Sedwin# From Steffen Thorsen (2009-10-13):
198198270Sedwin# IANS (Indo-Asian News Service) now reports:
199240457Sedwin# Bangladesh has decided that the clock advanced by an hour to make
200240457Sedwin# maximum use of daylight hours as an energy saving measure would
201198270Sedwin# "continue for an indefinite period."
202198270Sedwin#
203198270Sedwin# One of many places where it is published:
204198270Sedwin# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
205198270Sedwin
206201189Sedwin# From Alexander Krivenyshev (2009-12-24):
207201189Sedwin# According to Bangladesh newspaper "The Daily Star,"
208201189Sedwin# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
209201189Sedwin#
210201189Sedwin# Clock goes back 1-hr on Dec 31 night.
211201189Sedwin# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
212201189Sedwin# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
213201189Sedwin#
214201189Sedwin# "...The government yesterday decided to put the clock back by one hour
215201189Sedwin# on December 31 midnight and the new time will continue until March 31,
216201189Sedwin# 2010 midnight. The decision came at a cabinet meeting at the Prime
217201189Sedwin# Minister's Office last night..."
218201189Sedwin
219206219Sedwin# From Alexander Krivenyshev (2010-03-22):
220206219Sedwin# According to Bangladesh newspaper "The Daily Star,"
221240457Sedwin# Cabinet cancels Daylight Saving Time
222206219Sedwin# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
223206219Sedwin# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
224204887Sedwin
225201189Sedwin# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
226202606SedwinRule	Dhaka	2009	only	-	Jun	19	23:00	1:00	S
227273718SedwinRule	Dhaka	2009	only	-	Dec	31	24:00	0	-
228201189Sedwin
2292742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
23075267SwollmanZone	Asia/Dhaka	6:01:40 -	LMT	1890
23119878Swollman			5:53:20	-	HMT	1941 Oct    # Howrah Mean Time?
232325324Sgordon			6:30	-	+0630	1942 May 15
233325324Sgordon			5:30	-	+0530	1942 Sep
234325324Sgordon			6:30	-	+0630	1951 Sep 30
235325324Sgordon			6:00	-	+06	2009
236325324Sgordon			6:00	Dhaka	+06/+07
2372742Swollman
2382742Swollman# Bhutan
2392742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
24067578SwollmanZone	Asia/Thimphu	5:58:36 -	LMT	1947 Aug 15 # or Thimbu
241325324Sgordon			5:30	-	+0530	1987 Oct
242325324Sgordon			6:00	-	+06
2432742Swollman
2442742Swollman# British Indian Ocean Territory
24586222Swollman# Whitman and the 1995 CIA time zone map say 5:00, but the
24686222Swollman# 1997 and later maps say 6:00.  Assume the switch occurred in 1996.
247149514Swollman# We have no information as to when standard time was introduced;
248149514Swollman# assume it occurred in 1907, the same year as Mauritius (which
249149514Swollman# then contained the Chagos Archipelago).
2502742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
251149514SwollmanZone	Indian/Chagos	4:49:40	-	LMT	1907
252325324Sgordon			5:00	-	+05	1996
253325324Sgordon			6:00	-	+06
2542742Swollman
2552742Swollman# Brunei
2562742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
257273718SedwinZone	Asia/Brunei	7:39:40 -	LMT	1926 Mar # Bandar Seri Begawan
258325324Sgordon			7:30	-	+0730	1933
259325324Sgordon			8:00	-	+08
2602742Swollman
26114343Swollman# Burma / Myanmar
262248307Sedwin
263248307Sedwin# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
264248307Sedwin
265325324Sgordon# From Paul Eggert (2017-04-20):
266325324Sgordon# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
267325324Sgordon# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
268325324Sgordon# of Greenwich."  This refers to the period before Burma's transition to +0630,
269325324Sgordon# a transition for which Shanks is the only source.
270325324Sgordon
2712742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
272325324SgordonZone	Asia/Yangon	6:24:47 -	LMT	1880        # or Rangoon
273325324Sgordon			6:24:47	-	RMT	1920        # Rangoon local time
274325324Sgordon			6:30	-	+0630	1942 May
275325324Sgordon			9:00	-	+09	1945 May  3
276325324Sgordon			6:30	-	+0630
2772742Swollman
2782742Swollman# Cambodia
279273718Sedwin# See Asia/Bangkok.
2802742Swollman
281273718Sedwin
28243014Swollman# China
2832742Swollman
2842742Swollman# From Guy Harris:
2852742Swollman# People's Republic of China.  Yes, they really have only one time zone.
2862742Swollman
28719878Swollman# From Bob Devine (1988-01-28):
28819878Swollman# No they don't.  See TIME mag, 1986-02-17 p.52.  Even though
2892742Swollman# China is across 4 physical time zones, before Feb 1, 1986 only the
290270728Spluknet# Peking (Beijing) time zone was recognized.  Since that date, China
291270728Spluknet# has two of 'em - Peking's and ��r��mqi (named after the capital of
29293799Swollman# the Xinjiang Uyghur Autonomous Region).  I don't know about DST for it.
2932742Swollman#
2942742Swollman# . . .I just deleted the DST table and this editor makes it too
295270728Spluknet# painful to suck in another copy.  So, here is what I have for
2962742Swollman# DST start/end dates for Peking's time zone (info from AP):
2972742Swollman#
2982742Swollman#     1986 May 4 - Sept 14
2992742Swollman#     1987 mid-April - ??
3002742Swollman
30119878Swollman# From U. S. Naval Observatory (1989-01-19):
3022742Swollman# CHINA               8 H  AHEAD OF UTC  ALL OF CHINA, INCL TAIWAN
3032742Swollman# CHINA               9 H  AHEAD OF UTC  APR 17 - SEP 10
3042742Swollman
305270728Spluknet# From Paul Eggert (2008-02-11):
306270728Spluknet# Jim Mann, "A clumsy embrace for another western custom: China on daylight
307270728Spluknet# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began
308270728Spluknet# observing daylight saving time in 1986.
3092742Swollman
310270728Spluknet# From Paul Eggert (2014-06-30):
311270728Spluknet# Shanks & Pottenger have China switching to a single time zone in 1980, but
312270728Spluknet# this doesn't seem to be correct.  They also write that China observed summer
313270728Spluknet# DST from 1986 through 1991, which seems to match the above commentary, so
314270728Spluknet# go with them for DST rules as follows:
3152742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
3162742SwollmanRule	Shang	1940	only	-	Jun	 3	0:00	1:00	D
3172742SwollmanRule	Shang	1940	1941	-	Oct	 1	0:00	0	S
3182742SwollmanRule	Shang	1941	only	-	Mar	16	0:00	1:00	D
3192742SwollmanRule	PRC	1986	only	-	May	 4	0:00	1:00	D
32014343SwollmanRule	PRC	1986	1991	-	Sep	Sun>=11	0:00	0	S
32114343SwollmanRule	PRC	1987	1991	-	Apr	Sun>=10	0:00	1:00	D
322163302Sru
32393799Swollman# From Anthony Fok (2001-12-20):
32493799Swollman# BTW, I did some research on-line and found some info regarding these five
32593799Swollman# historic timezones from some Taiwan websites.  And yes, there are official
326163302Sru# Chinese names for these locales (before 1949).
327169811Swollman#
328270728Spluknet# From Jesper N��rgaard Welen (2006-07-14):
329163302Sru# I have investigated the timezones around 1970 on the
330325324Sgordon# https://www.astro.com/atlas site [with provinces and county
331163302Sru# boundaries summarized below]....  A few other exceptions were two
332163302Sru# counties on the Sichuan side of the Xizang-Sichuan border,
333163302Sru# counties Dege and Baiyu which lies on the Sichuan side and are
334163302Sru# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
335163302Sru# county is GMT+8 according to astro.com while Baiyu county is GMT+6
336163302Sru# (could be true), for the moment I am assuming that those two
337163302Sru# counties are mistakes in the astro.com data.
338163302Sru
339325324Sgordon# From Paul Eggert (2017-01-05):
340270728Spluknet# Alois Treindl kindly sent me translations of the following two sources:
341181421Sedwin#
342270728Spluknet# (1)
343270728Spluknet# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China)
344270728Spluknet# Beijing Time at the Beginning of the PRC
345270728Spluknet# China Historical Materials of Science and Technology
346270728Spluknet# (Zhongguo ke ji shi liao, ������������������), Vol. 24, No. 1 (2003)
347270728Spluknet# It gives evidence that at the beginning of the PRC, Beijing time was
348270728Spluknet# officially apparent solar time!  However, Guo also says that the
349270728Spluknet# evidence is dubious, as the relevant institute of astronomy had not
350270728Spluknet# been taken over by the PRC yet.  It's plausible that apparent solar
351270728Spluknet# time was announced but never implemented, and that people continued
352270728Spluknet# to use UT+8.  As the Shanghai radio station (and I presume the
353270728Spluknet# observatory) was still under control of French missionaries, it
354270728Spluknet# could well have ignored any such mandate.
355181421Sedwin#
356270728Spluknet# (2)
357270728Spluknet# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China)
358270728Spluknet# A Study on the Standard Time Changes for the Past 100 Years in China
359270728Spluknet# [undated and unknown publication location]
360270728Spluknet# It says several things:
361270728Spluknet#   * The Qing dynasty used local apparent solar time throughout China.
362270728Spluknet#   * The Republic of China instituted Beijing mean solar time effective
363270728Spluknet#     the official calendar book of 1914.
364270728Spluknet#   * The French Concession in Shanghai set up signal stations in
365273718Sedwin#     French docks in the 1890s, controlled by Xujiahui (Zikawei)
366273718Sedwin#     Observatory and set to local mean time.
367270728Spluknet#   * "From the end of the 19th century" it changed to UT+8.
368270728Spluknet#   * Chinese Customs (by then reduced to a tool of foreign powers)
369270728Spluknet#     eventually standardized on this time for all ports, and it
370270728Spluknet#     became used by railways as well.
371270728Spluknet#   * In 1918 the Central Observatory proposed dividing China into
372270728Spluknet#     five time zones (see below for details).  This caught on
373270728Spluknet#     at first only in coastal areas observing UT+8.
374270728Spluknet#   * During WWII all of China was in theory was at UT+7.  In practice
375270728Spluknet#     this was ignored in the west, and I presume was ignored in
376270728Spluknet#     Japanese-occupied territory.
377270728Spluknet#   * Japanese-occupied Manchuria was at UT+9, i.e., Japan time.
378270728Spluknet#   * The five-zone plan was resurrected after WWII and officially put into
379270728Spluknet#     place (with some modifications) in March 1948.  It's not clear
380270728Spluknet#     how well it was observed in areas under Nationalist control.
381270728Spluknet#   * The People's Liberation Army used UT+8 during the civil war.
382270728Spluknet#
383270728Spluknet# An AP article "Shanghai Internat'l Area Little Changed" in the
384270728Spluknet# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is
385270728Spluknet# different - the occupied districts going by Tokyo time, an hour
386270728Spluknet# ahead of that prevailing in the rest of Shanghai."  Guess that the
387309583Sglebius# Xujiahui Observatory was under French control and stuck with UT +08.
388270728Spluknet#
389270728Spluknet# In earlier versions of this file, China had many separate Zone entries, but
390273718Sedwin# this was based on what were apparently incorrect data in Shanks & Pottenger.
391270728Spluknet# This has now been simplified to the two entries Asia/Shanghai and
392270728Spluknet# Asia/Urumqi, with the others being links for backward compatibility.
393270728Spluknet# Proposed in 1918 and theoretically in effect until 1949 (although in practice
394270728Spluknet# mainly observed in coastal areas), the five zones were:
395270728Spluknet#
396309583Sglebius# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
397325324Sgordon# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
398163302Sru# Heilongjiang (except Mohe county), Jilin
399270728Spluknet#
400309583Sglebius# Zhongyuan Time ("Central plain Time") UT +08
401325324Sgordon# Now part of Asia/Shanghai.
402163302Sru# most of China
403270728Spluknet# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
404309583Sglebius# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
405270728Spluknet#
406325324Sgordon# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
407325324Sgordon# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
408163302Sru# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
409325324Sgordon# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
410163302Sru# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
411163302Sru# Yangchun, Yangjiang, Yu'nan, and Yunfu.
412270728Spluknet#
413309583Sglebius# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
414325324Sgordon# This region is now part of either Asia/Urumqi or Asia/Shanghai with
415325324Sgordon# current boundaries uncertain; times before 1970 for areas that
416325324Sgordon# disagree with ��r��mqi or Shanghai are not recorded here.
417163302Sru# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
418163302Sru# the Guangdong counties  Xuwen, Haikang, Suixi, Lianjiang,
419163302Sru# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
420163302Sru# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
421270728Spluknet# east Xinjiang, including ��r��mqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
422163302Sru# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
423163302Sru# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
424163302Sru# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
425270728Spluknet#
426309583Sglebius# Kunlun Time UT +05:30
427325324Sgordon# This region is now in the same status as Xin-zang Time (see above).
428163302Sru# West Tibet, including Pulan, Aheqi, Shufu, Shule;
429163302Sru# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
430163302Sru# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
431163302Sru# and Yarkand.
432200835Sedwin
433200835Sedwin# From Luther Ma (2009-10-17):
434200835Sedwin# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
435200835Sedwin# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
436200835Sedwin# but have no need of it. All planes, trains, and schools function on
437200835Sedwin# what is called "Beijing time." When Han make an appointment in Chinese
438200835Sedwin# they implicitly use Beijing time.
439200835Sedwin#
440200835Sedwin# On the other hand, ethnic Uyghurs, who make up about half the
441200835Sedwin# population of Xinjiang, typically use "Xinjiang time" which is two
442309583Sglebius# hours behind Beijing time, or UT +06. The government of the Xinjiang
443200835Sedwin# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
444270728Spluknet# local governments such as the ��r��mqi city government use both times in
445200835Sedwin# publications, referring to what is popularly called Xinjiang time as
446270728Spluknet# "��r��mqi time." When Uyghurs make an appointment in the Uyghur language
447200835Sedwin# they almost invariably use Xinjiang time.
448200835Sedwin#
449200835Sedwin# (Their ethnic Han compatriots would typically have no clue of its
450200835Sedwin# widespread use, however, because so extremely few of them are fluent in
451200835Sedwin# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
452200835Sedwin#
453200835Sedwin# (...As with the rest of China there was a brief interval ending in 1990
454200835Sedwin# or 1991 when summer time was in use.  The confusion was severe, with
455200835Sedwin# the province not having dual times but four times in use at the same
456200835Sedwin# time. Some areas remained on standard Xinjiang time or Beijing time and
457200835Sedwin# others moving their clocks ahead.)
458200835Sedwin
459200835Sedwin# From Luther Ma (2009-11-19):
460200835Sedwin# With the risk of being redundant to previous answers these are the most common
461200835Sedwin# English "transliterations" (w/o using non-English symbols):
462200835Sedwin#
463200835Sedwin# 1. Wulumuqi...
464200835Sedwin# 2. Kashi...
465200835Sedwin# 3. Urumqi...
466200835Sedwin# 4. Kashgar...
467200835Sedwin# ...
468270728Spluknet# 5. It seems that Uyghurs in ��r��mqi has been using Xinjiang since at least the
469200835Sedwin# 1960's. I know of one Han, now over 50, who grew up in the surrounding
470200835Sedwin# countryside and used Xinjiang time as a child.
471200835Sedwin#
472200835Sedwin# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
473200835Sedwin# start date for Xinjiang time.
474200835Sedwin#
475200835Sedwin# Without having access to local historical records, nor the ability to legally
476200835Sedwin# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
477200835Sedwin# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
478200835Sedwin# not be using Beijing time, but some local time.)
479200835Sedwin
480270728Spluknet# From David Cochrane (2014-03-26):
481270728Spluknet# Just a confirmation that ��r��mqi time was implemented in ��r��mqi on 1 Feb 1986:
482325324Sgordon# https://content.time.com/time/magazine/article/0,9171,960684,00.html
483270728Spluknet
484270728Spluknet# From Luther Ma (2014-04-22):
485270728Spluknet# I have interviewed numerous people of various nationalities and from
486270728Spluknet# different localities in Xinjiang and can confirm the information in Guo's
487270728Spluknet# report regarding Xinjiang, as well as the Time article reference by David
488270728Spluknet# Cochrane.  Whether officially recognized or not (and both are officially
489270728Spluknet# recognized), two separate times have been in use in Xinjiang since at least
490270728Spluknet# the Cultural Revolution: Xinjiang Time (XJT), aka ��r��mqi Time or local time;
491270728Spluknet# and Beijing Time.  There is no confusion in Xinjiang as to which name refers
492270728Spluknet# to which time. Both are widely used in the province, although in some
493270728Spluknet# population groups might be use one to the exclusion of the other.  The only
494270728Spluknet# problem is that computers and smart phones list ��r��mqi (or Kashgar) as
495270728Spluknet# having the same time as Beijing.
496270728Spluknet
497270728Spluknet# From Paul Eggert (2014-06-30):
498309583Sglebius# In the early days of the PRC, Tibet was given its own time zone (UT +06)
499309583Sglebius# but this was withdrawn in 1959 and never reinstated; see Tubten Kh��tsun,
500270728Spluknet# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN
501270728Spluknet# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x.
502270728Spluknet# As this is before our 1970 cutoff, Tibet doesn't need a separate zone.
503270728Spluknet#
504270728Spluknet# Xinjiang Time is well-documented as being officially recognized.  E.g., see
505270728Spluknet# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government"
506270728Spluknet# <http://www.sinkiang.gov.cn/service/ourworking/> (2014-04-22).
507270728Spluknet# Unfortunately, we have no good records of time in Xinjiang before 1986.
508273718Sedwin# During the 20th century parts of Xinjiang were ruled by the Qing dynasty,
509270728Spluknet# the Republic of China, various warlords, the First and Second East Turkestan
510270728Spluknet# Republics, the Soviet Union, the Kuomintang, and the People's Republic of
511270728Spluknet# China, and tracking down all these organizations' timekeeping rules would be
512270728Spluknet# quite a trick.  Approximate this lost history by a transition from LMT to
513309583Sglebius# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
514270728Spluknet# which happens to be the date given by Shanks & Pottenger (no doubt as a
515309583Sglebius# guess) as the transition from LMT.  Ignore the usage of +08 before
516309583Sglebius# 1986-02-01 under the theory that the transition date to +08 is unknown and
517270728Spluknet# that the sort of users who prefer Asia/Urumqi now typically ignored the
518309583Sglebius# +08 mandate back then.
519270728Spluknet
520270728Spluknet# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
521270728Spluknet# Beijing time, used throughout China; represented by Shanghai.
522270728SpluknetZone	Asia/Shanghai	8:05:43	-	LMT	1901
523270728Spluknet			8:00	Shang	C%sT	1949
52414343Swollman			8:00	PRC	C%sT
525270728Spluknet# Xinjiang time, used by many in western China; represented by ��r��mqi / ��r��mchi
526270728Spluknet# / Wulumuqi.  (Please use Asia/Shanghai if you prefer Beijing time.)
527270728SpluknetZone	Asia/Urumqi	5:50:20	-	LMT	1928
528325324Sgordon			6:00	-	+06
52993799Swollman
530198825Sedwin
531248307Sedwin# Hong Kong (Xianggang)
532248307Sedwin
533248307Sedwin# Milne gives 7:36:41.7; round this.
534248307Sedwin
535198825Sedwin# From Lee Yiu Chung (2009-10-24):
536200835Sedwin# I found there are some mistakes for the...DST rule for Hong
537200835Sedwin# Kong. [According] to the DST record from Hong Kong Observatory (actually,
538198825Sedwin# it is not [an] observatory, but the official meteorological agency of HK,
539198825Sedwin# and also serves as the official timing agency), there are some missing
540198825Sedwin# and incorrect rules. Although the exact switch over time is missing, I
541198825Sedwin# think 3:30 is correct. The official DST record for Hong Kong can be
542198825Sedwin# obtained from
543198825Sedwin# http://www.hko.gov.hk/gts/time/Summertime.htm
544198825Sedwin
545198825Sedwin# From Arthur David Olson (2009-10-28):
546198825Sedwin# Here are the dates given at
547198825Sedwin# http://www.hko.gov.hk/gts/time/Summertime.htm
548198825Sedwin# as of 2009-10-28:
549198825Sedwin# Year        Period
550198825Sedwin# 1941        1 Apr to 30 Sep
551240457Sedwin# 1942        Whole year
552198825Sedwin# 1943        Whole year
553198825Sedwin# 1944        Whole year
554198825Sedwin# 1945        Whole year
555198825Sedwin# 1946        20 Apr to 1 Dec
556198825Sedwin# 1947        13 Apr to 30 Dec
557198825Sedwin# 1948        2 May to 31 Oct
558198825Sedwin# 1949        3 Apr to 30 Oct
559198825Sedwin# 1950        2 Apr to 29 Oct
560198825Sedwin# 1951        1 Apr to 28 Oct
561198825Sedwin# 1952        6 Apr to 25 Oct
562198825Sedwin# 1953        5 Apr to 1 Nov
563198825Sedwin# 1954        21 Mar to 31 Oct
564198825Sedwin# 1955        20 Mar to 6 Nov
565198825Sedwin# 1956        18 Mar to 4 Nov
566198825Sedwin# 1957        24 Mar to 3 Nov
567198825Sedwin# 1958        23 Mar to 2 Nov
568198825Sedwin# 1959        22 Mar to 1 Nov
569198825Sedwin# 1960        20 Mar to 6 Nov
570198825Sedwin# 1961        19 Mar to 5 Nov
571198825Sedwin# 1962        18 Mar to 4 Nov
572198825Sedwin# 1963        24 Mar to 3 Nov
573198825Sedwin# 1964        22 Mar to 1 Nov
574198825Sedwin# 1965        18 Apr to 17 Oct
575198825Sedwin# 1966        17 Apr to 16 Oct
576198825Sedwin# 1967        16 Apr to 22 Oct
577198825Sedwin# 1968        21 Apr to 20 Oct
578198825Sedwin# 1969        20 Apr to 19 Oct
579198825Sedwin# 1970        19 Apr to 18 Oct
580198825Sedwin# 1971        18 Apr to 17 Oct
581198825Sedwin# 1972        16 Apr to 22 Oct
582198825Sedwin# 1973        22 Apr to 21 Oct
583198825Sedwin# 1973/74     30 Dec 73 to 20 Oct 74
584198825Sedwin# 1975        20 Apr to 19 Oct
585198825Sedwin# 1976        18 Apr to 17 Oct
586198825Sedwin# 1977        Nil
587198825Sedwin# 1978        Nil
588198825Sedwin# 1979        13 May to 21 Oct
589198825Sedwin# 1980 to Now Nil
590198825Sedwin# The page does not give start or end times of day.
591198825Sedwin# The page does not give a start date for 1942.
592198825Sedwin# The page does not givw an end date for 1945.
593198825Sedwin# The Japanese occupation of Hong Kong began on 1941-12-25.
594198825Sedwin# The Japanese surrender of Hong Kong was signed 1945-09-15.
595198825Sedwin# For lack of anything better, use start of those days as the transition times.
596198825Sedwin
5972742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
598198825SedwinRule	HK	1941	only	-	Apr	1	3:30	1:00	S
599198825SedwinRule	HK	1941	only	-	Sep	30	3:30	0	-
6002742SwollmanRule	HK	1946	only	-	Apr	20	3:30	1:00	S
6012742SwollmanRule	HK	1946	only	-	Dec	1	3:30	0	-
6022742SwollmanRule	HK	1947	only	-	Apr	13	3:30	1:00	S
6032742SwollmanRule	HK	1947	only	-	Dec	30	3:30	0	-
6042742SwollmanRule	HK	1948	only	-	May	2	3:30	1:00	S
605198825SedwinRule	HK	1948	1951	-	Oct	lastSun	3:30	0	-
606198825SedwinRule	HK	1952	only	-	Oct	25	3:30	0	-
6072742SwollmanRule	HK	1949	1953	-	Apr	Sun>=1	3:30	1:00	S
6082742SwollmanRule	HK	1953	only	-	Nov	1	3:30	0	-
6092742SwollmanRule	HK	1954	1964	-	Mar	Sun>=18	3:30	1:00	S
6102742SwollmanRule	HK	1954	only	-	Oct	31	3:30	0	-
6112742SwollmanRule	HK	1955	1964	-	Nov	Sun>=1	3:30	0	-
612213312SedwinRule	HK	1965	1976	-	Apr	Sun>=16	3:30	1:00	S
613213312SedwinRule	HK	1965	1976	-	Oct	Sun>=16	3:30	0	-
614198825SedwinRule	HK	1973	only	-	Dec	30	3:30	1:00	S
615198825SedwinRule	HK	1979	only	-	May	Sun>=8	3:30	1:00	S
616198825SedwinRule	HK	1979	only	-	Oct	Sun>=16	3:30	0	-
6172742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
618248307SedwinZone	Asia/Hong_Kong	7:36:42 -	LMT	1904 Oct 30
619198825Sedwin			8:00	HK	HK%sT	1941 Dec 25
620198825Sedwin			9:00	-	JST	1945 Sep 15
62158787Sru			8:00	HK	HK%sT
6222742Swollman
62330711Swollman###############################################################################
62430711Swollman
62543014Swollman# Taiwan
62630711Swollman
627206868Sedwin# From smallufo (2010-04-03):
628270728Spluknet# According to Taiwan's CWB [Central Weather Bureau],
629206868Sedwin# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
630206868Sedwin# Taipei has DST in 1979 between July 1st and Sep 30.
631206868Sedwin
632270728Spluknet# From Yu-Cheng Chuang (2013-07-12):
633270728Spluknet# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of
634270728Spluknet# Meiji Year 28 "The clause about standard time", mentioned that
635270728Spluknet# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands
636270728Spluknet# (both in Okinawa) adopt the Western Standard Time which is based on
637270728Spluknet# 120E. The adoption began from Jan 1, 1896. The original text can be
638270728Spluknet# found on Wikisource:
639325324Sgordon# https://ja.wikisource.org/wiki/������������������������_(���������)
640270728Spluknet# ... This could be the first adoption of time zone in Taiwan, because
641270728Spluknet# during the Qing Dynasty, it seems that there was no time zone
642270728Spluknet# declared officially.
643270728Spluknet#
644270728Spluknet# Later, in the beginning of World War II, on Sep 25, 1937, the Showa
645270728Spluknet# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of
646270728Spluknet# revision in the ordinance No. 167 of Meiji year 28 about standard
647270728Spluknet# time", in which abolished the adoption of Western Standard Time in
648270728Spluknet# western islands (listed above), which means the whole Japan
649270728Spluknet# territory, including later occupations, adopt Japan Central Time
650270728Spluknet# (UTC+9). The adoption began on Oct 1, 1937. The original text can
651270728Spluknet# be found on Wikisource:
652325324Sgordon# https://ja.wikisource.org/wiki/���������������������������������������������������������������������������������
653270728Spluknet#
654270728Spluknet# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937.
655206868Sedwin
656270728Spluknet# From Yu-Cheng Chuang (2014-07-02):
657270728Spluknet# I've found more evidence about when the time zone was switched from UTC+9
658270728Spluknet# back to UTC+8 after WW2.  I believe it was on Sep 21, 1945.  In a document
659270728Spluknet# during Japanese era [1] in which the officer told the staff to change time
660270728Spluknet# zone back to Western Standard Time (UTC+8) on Sep 21.  And in another
661270728Spluknet# history page of National Cheng Kung University [2], on Sep 21 there is a
662270728Spluknet# note "from today, switch back to Western Standard Time".  From these two
663270728Spluknet# materials, I believe that the time zone change happened on Sep 21.  And
664270728Spluknet# today I have found another monthly journal called "The Astronomical Herald"
665270728Spluknet# from The Astronomical Society of Japan [3] in which it mentioned the fact
666270728Spluknet# that:
667270728Spluknet#
668270728Spluknet# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using
669270728Spluknet# the time at 135E (GMT+9)
670270728Spluknet#
671270728Spluknet# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan
672270728Spluknet# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands,
673270728Spluknet# as well as Yaeyama and Miyako islands, adopted a new time zone called
674270728Spluknet# Western Standard Time, which is in GMT+8.
675270728Spluknet#
676270728Spluknet# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the
677270728Spluknet# territories of Japan adopted the same time zone, which is Central Standard
678270728Spluknet# Time.
679270728Spluknet#
680270728Spluknet# [1] Academica Historica, Taiwan:
681270728Spluknet# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037
682270728Spluknet# [2] Nat'l Cheng Kung University 70th Anniversary Special Site:
683270728Spluknet# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm
684270728Spluknet# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475:
685270728Spluknet# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf
686270728Spluknet
687270728Spluknet# Yu-Cheng Chuang (2014-07-03):
688270728Spluknet# I finally have found the real official gazette about changing back to
689270728Spluknet# Western Standard Time on Sep 21 in Taiwan.  It's Taiwan Governor-General
690270728Spluknet# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ...
691270728Spluknet# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local
692270728Spluknet# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on
693270728Spluknet# Sep 21, 1945 will be 12am on Sep 21.  I think this bulletin is much more
694270728Spluknet# official than the one I mentioned in my first mail, because it's from the
695270728Spluknet# top-level government in Taiwan. If you're going to quote any resource, this
696270728Spluknet# would be a good one.
697270728Spluknet# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945:
698270728Spluknet# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener
699270728Spluknet
700270728Spluknet# From Yu-Cheng Chuang (2014-07-02):
701270728Spluknet# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from
702270728Spluknet# Central Weather Bureau website was not correct.
703270728Spluknet#
704270728Spluknet# Original Bulletin:
705273718Sedwin# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF
706273718Sedwin# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.)
707270728Spluknet#
708270728Spluknet# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that
709270728Spluknet# telegram announcement from Taiwan Province Government:
710270728Spluknet#
711273718Sedwin# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431
712270728Spluknet#
713270728Spluknet# Here is a brief translation:
714270728Spluknet#
715270728Spluknet#   The Summer Time this year is adopted from midnight Apr 15 until Sep 20
716270728Spluknet#   midnight. To save (energy?) consumption, we're expanding Summer Time
717273718Sedwin#   adoption till Oct 31 midnight.
718270728Spluknet#
719270728Spluknet# The Central Weather Bureau website didn't mention that, however it can
720270728Spluknet# be found from historical government announcement database.
721270728Spluknet
722270728Spluknet# From Paul Eggert (2014-07-03):
723309583Sglebius# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
724270728Spluknet# until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
725270728Spluknet# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
726270728Spluknet
72730711Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
728270728SpluknetRule	Taiwan	1946	only	-	May	15	0:00	1:00	D
729270728SpluknetRule	Taiwan	1946	only	-	Oct	1	0:00	0	S
730270728SpluknetRule	Taiwan	1947	only	-	Apr	15	0:00	1:00	D
731270728SpluknetRule	Taiwan	1947	only	-	Nov	1	0:00	0	S
732270728SpluknetRule	Taiwan	1948	1951	-	May	1	0:00	1:00	D
733270728SpluknetRule	Taiwan	1948	1951	-	Oct	1	0:00	0	S
73430711SwollmanRule	Taiwan	1952	only	-	Mar	1	0:00	1:00	D
73530711SwollmanRule	Taiwan	1952	1954	-	Nov	1	0:00	0	S
73630711SwollmanRule	Taiwan	1953	1959	-	Apr	1	0:00	1:00	D
73730711SwollmanRule	Taiwan	1955	1961	-	Oct	1	0:00	0	S
73830711SwollmanRule	Taiwan	1960	1961	-	Jun	1	0:00	1:00	D
73930711SwollmanRule	Taiwan	1974	1975	-	Apr	1	0:00	1:00	D
74030711SwollmanRule	Taiwan	1974	1975	-	Oct	1	0:00	0	S
741270728SpluknetRule	Taiwan	1979	only	-	Jul	1	0:00	1:00	D
742270728SpluknetRule	Taiwan	1979	only	-	Oct	1	0:00	0	S
743206868Sedwin
74430711Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
745270728Spluknet# Taipei or Taibei or T'ai-pei
746270728SpluknetZone	Asia/Taipei	8:06:00 -	LMT	1896 Jan  1
747325324Sgordon			8:00	-	CST	1937 Oct  1
748273718Sedwin			9:00	-	JST	1945 Sep 21  1:00
74930711Swollman			8:00	Taiwan	C%sT
75030711Swollman
75193799Swollman# Macau (Macao, Aomen)
7522742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
753325324SgordonRule	Macau	1961	1962	-	Mar	Sun>=16	3:30	1:00	D
754325324SgordonRule	Macau	1961	1964	-	Nov	Sun>=1	3:30	0	S
755325324SgordonRule	Macau	1963	only	-	Mar	Sun>=16	0:00	1:00	D
756325324SgordonRule	Macau	1964	only	-	Mar	Sun>=16	3:30	1:00	D
757325324SgordonRule	Macau	1965	only	-	Mar	Sun>=16	0:00	1:00	D
758325324SgordonRule	Macau	1965	only	-	Oct	31	0:00	0	S
759325324SgordonRule	Macau	1966	1971	-	Apr	Sun>=16	3:30	1:00	D
760325324SgordonRule	Macau	1966	1971	-	Oct	Sun>=16	3:30	0	S
761325324SgordonRule	Macau	1972	1974	-	Apr	Sun>=15	0:00	1:00	D
762325324SgordonRule	Macau	1972	1973	-	Oct	Sun>=15	0:00	0	S
763325324SgordonRule	Macau	1974	1977	-	Oct	Sun>=15	3:30	0	S
764325324SgordonRule	Macau	1975	1977	-	Apr	Sun>=15	3:30	1:00	D
765325324SgordonRule	Macau	1978	1980	-	Apr	Sun>=15	0:00	1:00	D
766325324SgordonRule	Macau	1978	1980	-	Oct	Sun>=15	0:00	0	S
7672742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
768273718SedwinZone	Asia/Macau	7:34:20 -	LMT	1912 Jan  1
769325324Sgordon			8:00	Macau	C%sT
7702742Swollman
7712742Swollman
7722742Swollman###############################################################################
7732742Swollman
7742742Swollman# Cyprus
775309583Sglebius
776248307Sedwin# Milne says the Eastern Telegraph Company used 2:14:00.  Stick with LMT.
777309583Sglebius# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
778309583Sglebius
779309583Sglebius# From Paul Eggert (2016-09-09):
780309583Sglebius# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
781309583Sglebius# lead and switched from +02/+03 to +03 year-round.
782309583Sglebius# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
783248307Sedwin#
784309583Sglebius# From Even Scharning (2016-10-31):
785309583Sglebius# Looks like the time zone split in Cyprus went through last night.
786309583Sglebius# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
787309583Sglebius
788325324Sgordon# From Paul Eggert (2017-10-18):
789325324Sgordon# Northern Cyprus will reinstate winter time on October 29, thus
790325324Sgordon# staying in sync with the rest of Cyprus.  See: Anastasiou A.
791325324Sgordon# Cyprus to remain united in time.  Cyprus Mail 2017-10-17.
792325324Sgordon# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
793325324Sgordon
7942742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
79519878SwollmanRule	Cyprus	1975	only	-	Apr	13	0:00	1:00	S
7962742SwollmanRule	Cyprus	1975	only	-	Oct	12	0:00	0	-
79719878SwollmanRule	Cyprus	1976	only	-	May	15	0:00	1:00	S
7982742SwollmanRule	Cyprus	1976	only	-	Oct	11	0:00	0	-
79919878SwollmanRule	Cyprus	1977	1980	-	Apr	Sun>=1	0:00	1:00	S
8002742SwollmanRule	Cyprus	1977	only	-	Sep	25	0:00	0	-
8012742SwollmanRule	Cyprus	1978	only	-	Oct	2	0:00	0	-
80243543SwollmanRule	Cyprus	1979	1997	-	Sep	lastSun	0:00	0	-
80343543SwollmanRule	Cyprus	1981	1998	-	Mar	lastSun	0:00	1:00	S
8042742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
8052742SwollmanZone	Asia/Nicosia	2:13:28 -	LMT	1921 Nov 14
80643543Swollman			2:00	Cyprus	EE%sT	1998 Sep
80758787Sru			2:00	EUAsia	EE%sT
808309583SglebiusZone	Asia/Famagusta	2:15:48	-	LMT	1921 Nov 14
809309583Sglebius			2:00	Cyprus	EE%sT	1998 Sep
810309583Sglebius			2:00	EUAsia	EE%sT	2016 Sep  8
811325324Sgordon			3:00	-	+03	2017 Oct 29 1:00u
812325324Sgordon			2:00	EUAsia	EE%sT
8132742Swollman
81467578Swollman# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
81567578Swollman# However, for various reasons many users expect to find it under Europe.
81667578SwollmanLink	Asia/Nicosia	Europe/Nicosia
81767578Swollman
8182742Swollman# Georgia
819149514Swollman# From Paul Eggert (1994-11-19):
8209908Swollman# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
8219908Swollman# an hour recently, due to a law proposed by Zurab Murvanidze,
8229908Swollman# an MP who went on a hunger strike for 11 days to force discussion about it!
82314343Swollman# We have no details, but we'll guess they didn't move the clocks back in fall.
82414343Swollman#
825149514Swollman# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
82620094Swollman# Instead of putting back clocks at the end of October, Georgia
82720094Swollman# will stay on daylight savings time this winter to save energy,
82820094Swollman# President Eduard Shevardnadze decreed Wednesday.
829136638Swollman#
830136638Swollman# From the BBC via Joseph S. Myers (2004-06-27):
831149514Swollman#
832136638Swollman# Georgia moved closer to Western Europe on Sunday...  The former Soviet
833136638Swollman# republic has changed its time zone back to that of Moscow.  As a result it
834136638Swollman# is now just four hours ahead of Greenwich Mean Time, rather than five hours
835136638Swollman# ahead.  The switch was decreed by the pro-Western president of Georgia,
836270728Spluknet# Mikheil Saakashvili, who said the change was partly prompted by the process
837136638Swollman# of integration into Europe.
838136638Swollman
839153670Swollman# From Teimuraz Abashidze (2005-11-07):
840153670Swollman# Government of Georgia ... decided to NOT CHANGE daylight savings time on
841153670Swollman# [Oct.] 30, as it was done before during last more than 10 years.
842153670Swollman# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
843153670Swollman# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
844153670Swollman# about it.  As far as I can find, I was told, that there is no document,
845153670Swollman# because we just DIDN'T ISSUE document about switching to winter time....
846153670Swollman# I don't know what can be done, especially knowing that some years ago our
847153670Swollman# DST rules where changed THREE TIMES during one month.
848153670Swollman
849273718Sedwin# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7.
850273718Sedwin# Byalokoz 1919 says Georgia was 2:59:11.
851273718Sedwin# Go with Byalokoz.
852153670Swollman
8532742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
854273718SedwinZone	Asia/Tbilisi	2:59:11 -	LMT	1880
855273718Sedwin			2:59:11	-	TBMT	1924 May  2 # Tbilisi Mean Time
856309583Sglebius			3:00	-	+03	1957 Mar
857309583Sglebius			4:00 RussiaAsia +04/+05	1991 Mar 31  2:00s
858309583Sglebius			3:00 RussiaAsia +03/+04	1992
859309583Sglebius			3:00 E-EurAsia	+03/+04	1994 Sep lastSun
860309583Sglebius			4:00 E-EurAsia	+04/+05	1996 Oct lastSun
861309583Sglebius			4:00	1:00	+05	1997 Mar lastSun
862309583Sglebius			4:00 E-EurAsia	+04/+05	2004 Jun 27
863309583Sglebius			3:00 RussiaAsia	+03/+04	2005 Mar lastSun  2:00
864309583Sglebius			4:00	-	+04
8652742Swollman
86658787Sru# East Timor
86775267Swollman
868169811Swollman# See Indonesia for the 1945 transition.
869169811Swollman
870270728Spluknet# From Jo��o Carrascal��o, brother of the former governor of East Timor, in
87175267Swollman# East Timor may be late for its millennium
872325324Sgordon# <https://etan.org/et99c/december/26-31/30ETMAY.htm> (1999-12-26/31):
87375267Swollman# Portugal tried to change the time forward in 1974 because the sun
87475267Swollman# rises too early but the suggestion raised a lot of problems with the
87575267Swollman# Timorese and I still don't think it would work today because it
87675267Swollman# conflicts with their way of life.
87775267Swollman
87875267Swollman# From Paul Eggert (2000-12-04):
87975267Swollman# We don't have any record of the above attempt.
88075267Swollman# Most likely our records are incomplete, but we have no better data.
88175267Swollman
88275267Swollman# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
883270728Spluknet# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html
884270728Spluknet# (2000-08-16):
88575267Swollman# The Cabinet of the East Timor Transition Administration decided
88675267Swollman# today to advance East Timor's time by one hour.  The time change,
88775267Swollman# which will be permanent, with no seasonal adjustment, will happen at
88875267Swollman# midnight on Saturday, September 16.
88975267Swollman
89058787Sru# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
891273718SedwinZone	Asia/Dili	8:22:20 -	LMT	1912 Jan  1
892325324Sgordon			8:00	-	+08	1942 Feb 21 23:00
893325324Sgordon			9:00	-	+09	1976 May  3
894325324Sgordon			8:00	-	+08	2000 Sep 17  0:00
895325324Sgordon			9:00	-	+09
89658787Sru
8972742Swollman# India
898309583Sglebius
899309583Sglebius# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
900325324Sgordon# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
901309583Sglebius# (2015-12-22):
902309583Sglebius# In January 1906, several thousand cotton-mill workers rioted on the
903309583Sglebius# outskirts of Bombay....  They were protesting the proposed abolition of
904309583Sglebius# local time in favor of Indian Standard Time....  Journalists called this
905309583Sglebius# dispute the "Battle of the Clocks."  It lasted nearly half a century.
906309583Sglebius
907325324Sgordon# From Paul Eggert (2017-04-20):
908325324Sgordon# Good luck trying to nail down old timekeeping records in India.
909325324Sgordon# "... in the nineteenth century ... Madras Observatory took its magnetic
910325324Sgordon# measurements on G��ttingen time, its meteorological measurements on Madras
911325324Sgordon# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
912325324Sgordon# and distributed civil (local time)." -- Bartky IR. Selling the true time:
913325324Sgordon# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
914325324Sgordon# "A more potent cause of resistance to the general adoption of the present
915325324Sgordon# standard time lies in the fact that it is Madras time.  The citizen of
916325324Sgordon# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
917325324Sgordon# his city being the Capital of India, and - for a part of the year - the Seat
918325324Sgordon# of the Supreme Government, alike look down on Madras, and refuse to change
919325324Sgordon# the time they are using, for that of what they regard as a benighted
920325324Sgordon# Presidency; while Madras, having for long given the standard time to the
921325324Sgordon# rest of India, would resist the adoption of any other Indian standard in its
922325324Sgordon# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
923325324Sgordon# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
924325324Sgordon#
925325324Sgordon# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
926325324Sgordon# only government observatory' - was suggested as a standard railway time,
927325324Sgordon# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
928325324Sgordon# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
929325324Sgordon# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
930325324Sgordon# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
931325324Sgordon#
932325324Sgordon# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
933325324Sgordon# https://archive.org/details/in.ernet.dli.2015.282212
934325324Sgordon# This lists +052110 as Madras local time used in railways, and says that on
935325324Sgordon# 1906-01-01 railways and telegraphs in India switched to +0530.  Some
936325324Sgordon# municipalities retained their former time, and the time in Calcutta
937325324Sgordon# continued to depend on whether you were at the railway station or at
938325324Sgordon# government offices.  Government time was at +055320 (according to Shanks) or
939325324Sgordon# at +0554 (according to the Indian Year Book).  Railway time is more
940325324Sgordon# appropriate for our purposes, as it was better documented, it is what we do
941325324Sgordon# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
942325324Sgordon# consistent in the region now identified by Asia/Kolkata.  So, use railway
943325324Sgordon# time for 1870-1941.  Shanks is our only (and dubious) source for the
944325324Sgordon# 1941-1945 data.
945325324Sgordon
9462742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
947325324SgordonZone	Asia/Kolkata	5:53:28 -	LMT	1854 Jun 28 # Kolkata
948325324Sgordon			5:53:20	-	HMT	1870	    # Howrah Mean Time?
949325324Sgordon			5:21:10	-	MMT	1906 Jan  1 # Madras local time
950325324Sgordon			5:30	-	IST	1941 Oct
951325324Sgordon			5:30	1:00	+0630	1942 May 15
9522742Swollman			5:30	-	IST	1942 Sep
953325324Sgordon			5:30	1:00	+0630	1945 Oct 15
9542742Swollman			5:30	-	IST
955325324Sgordon# Since 1970 the following are like Asia/Kolkata:
9562742Swollman#	Andaman Is
9572742Swollman#	Lakshadweep (Laccadive, Minicoy and Amindivi Is)
9582742Swollman#	Nicobar Is
9592742Swollman
9602742Swollman# Indonesia
96186222Swollman#
962273718Sedwin# From Paul Eggert (2014-09-06):
963273718Sedwin# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
964273718Sedwin# civil time was 7:07:12.5; round to even for Jakarta.
965273718Sedwin#
966158421Swollman# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
967273718Sedwin# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
96886222Swollman# says that Indonesia's time zones changed on 1988-01-01.  Looking at some
96986222Swollman# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
97086222Swollman# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
97186222Swollman#
972169811Swollman# From Paul Eggert (2007-03-10):
973169811Swollman# Here is another correction to Shanks & Pottenger.
974169811Swollman# JohnTWB writes that Japanese forces did not surrender control in
975169811Swollman# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
976169811Swollman# other formal surrender ceremonies were September 9, 11, and 13, plus
977169811Swollman# September 12 for the regional surrender to Mountbatten in Singapore.
978169811Swollman# These would be the earliest possible times for a change.
979270728Spluknet# R��gimes horaires pour le monde entier, by Henri Le Corre, (��ditions
980169811Swollman# Traditionnelles, 1987, Paris) says that Java and Madura switched
981309583Sglebius# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
982169811Swollman# (Hollandia).  For now, assume all Indonesian locations other than Jayapura
983169811Swollman# switched on 1945-09-23.
984169811Swollman#
985257681Sedwin# From Paul Eggert (2013-08-11):
986257681Sedwin# Normally the tz database uses English-language abbreviations, but in
987257681Sedwin# Indonesia it's typical to use Indonesian-language abbreviations even
988257681Sedwin# when writing in English.  For example, see the English-language
989257681Sedwin# summary published by the Time and Frequency Laboratory of the
990257681Sedwin# Research Center for Calibration, Instrumentation and Metrology,
991257681Sedwin# Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29).
992309583Sglebius# The time zone abbreviations and UT offsets are:
993257681Sedwin#
994309583Sglebius# WIB  - +07 - Waktu Indonesia Barat (Indonesia western time)
995309583Sglebius# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
996309583Sglebius# WIT  - +09 - Waktu Indonesia Timur (Indonesia eastern time)
997257681Sedwin#
9982742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
999257681Sedwin# Java, Sumatra
10002742SwollmanZone Asia/Jakarta	7:07:12 -	LMT	1867 Aug 10
1001158421Swollman# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
100258787Sru# but this must be a typo.
1003257681Sedwin			7:07:12	-	BMT	1923 Dec 31 23:47:12 # Batavia
1004325324Sgordon			7:20	-	+0720	1932 Nov
1005325324Sgordon			7:30	-	+0730	1942 Mar 23
1006325324Sgordon			9:00	-	+09	1945 Sep 23
1007325324Sgordon			7:30	-	+0730	1948 May
1008325324Sgordon			8:00	-	+08	1950 May
1009325324Sgordon			7:30	-	+0730	1964
1010257681Sedwin			7:00	-	WIB
1011257681Sedwin# west and central Borneo
101286222SwollmanZone Asia/Pontianak	7:17:20	-	LMT	1908 May
101386222Swollman			7:17:20	-	PMT	1932 Nov    # Pontianak MT
1014325324Sgordon			7:30	-	+0730	1942 Jan 29
1015325324Sgordon			9:00	-	+09	1945 Sep 23
1016325324Sgordon			7:30	-	+0730	1948 May
1017325324Sgordon			8:00	-	+08	1950 May
1018325324Sgordon			7:30	-	+0730	1964
1019257681Sedwin			8:00	-	WITA	1988 Jan  1
1020257681Sedwin			7:00	-	WIB
1021257681Sedwin# Sulawesi, Lesser Sundas, east and south Borneo
102293799SwollmanZone Asia/Makassar	7:57:36 -	LMT	1920
102319878Swollman			7:57:36	-	MMT	1932 Nov    # Macassar MT
1024325324Sgordon			8:00	-	+08	1942 Feb  9
1025325324Sgordon			9:00	-	+09	1945 Sep 23
1026257681Sedwin			8:00	-	WITA
1027257681Sedwin# Maluku Islands, West Papua, Papua
10282742SwollmanZone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
1029325324Sgordon			9:00	-	+09	1944 Sep  1
1030325324Sgordon			9:30	-	+0930	1964
1031257681Sedwin			9:00	-	WIT
10322742Swollman
10332742Swollman# Iran
1034114173Swollman
1035114173Swollman# From Roozbeh Pournader (2003-03-15):
1036114173Swollman# This is an English translation of what I just found (originally in Persian).
1037114173Swollman# The Gregorian dates in brackets are mine:
103821217Swollman#
1039114173Swollman#	Official Newspaper No. 13548-1370/6/25 [1991-09-16]
1040114173Swollman#	No. 16760/T233 H				1370/6/10 [1991-09-01]
104121217Swollman#
1042114173Swollman#	The Rule About Change of the Official Time of the Country
1043114173Swollman#
1044114173Swollman#	The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
1045114173Swollman#	based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
1046114173Swollman#	of the Country's Organization for Official and Employment Affairs,
1047114173Swollman#	and referring to the law for equating the working hours of workers
1048114173Swollman#	and officers in the whole country dated 1359/4/23 [1980-07-14], and
1049114173Swollman#	for synchronizing the official times of the country, agreed that:
1050114173Swollman#
1051114173Swollman#	The official time of the country will should move forward one hour
1052114173Swollman#	at the 24[:00] hours of the first day of Farvardin and should return
1053114173Swollman#	to its previous state at the 24[:00] hours of the 30th day of
1054114173Swollman#	Shahrivar.
1055114173Swollman#
1056114173Swollman#	First Deputy to the President - Hassan Habibi
1057114173Swollman#
1058114173Swollman# From personal experience, that agrees with what has been followed
1059114173Swollman# for at least the last 5 years.  Before that, for a few years, the
1060114173Swollman# date used was the first Thursday night of Farvardin and the last
1061114173Swollman# Thursday night of Shahrivar, but I can't give exact dates....
1062149514Swollman#
1063149514Swollman# From Roozbeh Pournader (2005-04-05):
1064149514Swollman# The text of the Iranian law, in effect since 1925, clearly mentions
1065149514Swollman# that the true solar year is the measure, and there is no arithmetic
1066149514Swollman# leap year calculation involved.  There has never been any serious
1067149514Swollman# plan to change that law....
1068149514Swollman#
1069158421Swollman# From Paul Eggert (2006-03-22):
1070158421Swollman# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
1071149514Swollman# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
1072149514Swollman# stopping after 2037 when 32-bit time_t's overflow.
1073149514Swollman# That cal-persia used Birashk's approximation, which disagrees with the solar
1074149514Swollman# calendar predictions for the year 2025, so I corrected those dates by hand.
107521217Swollman#
1076149514Swollman# From Oscar van Vlijmen (2005-03-30), writing about future
1077149514Swollman# discrepancies between cal-persia and the Iranian calendar:
1078149514Swollman# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
1079149514Swollman# the vernal equinox and that gets so close to 12:00 some local
1080149514Swollman# Iranian time that the definition of the correct location needs to be
1081149514Swollman# known exactly, amongst other factors.  2157 is even closer:
1082149514Swollman# 2157-03-20 08:37:15.5 UT.  But the Gregorian year 2025 should give
1083149514Swollman# no interpretation problem whatsoever.  By the way, another instant
1084149514Swollman# in the near future where there will be a discrepancy between
1085149514Swollman# arithmetical and astronomical Iranian calendars will be in 2058:
1086149514Swollman# vernal equinox on 2058-03-20 09:03:05.9 UT.  The Java version of
1087149514Swollman# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
1088149514Swollman# 2058-03-21 for 1 Farvardin 1437 (astronomical).
1089149514Swollman#
1090158421Swollman# From Steffen Thorsen (2006-03-22):
1091158421Swollman# Several of my users have reported that Iran will not observe DST anymore:
1092158421Swollman# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
1093158421Swollman#
1094270728Spluknet# From Reuters (2007-09-16), with a heads-up from Jesper N��rgaard Welen:
1095172479Sedwin# ... the Guardian Council ... approved a law on Sunday to re-introduce
1096172479Sedwin# daylight saving time ...
1097325324Sgordon# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
1098172479Sedwin#
1099174242Sedwin# From Roozbeh Pournader (2007-11-05):
1100174242Sedwin# This is quoted from Official Gazette of the Islamic Republic of
1101286750Sedwin# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24
1102174242Sedwin# [2007-10-16]. I am doing the best translation I can:...
1103174242Sedwin# The official time of the country will be moved forward for one hour
1104174242Sedwin# on the 24 hours of the first day of the month of Farvardin and will
1105174242Sedwin# be changed back to its previous state on the 24 hours of the
1106174242Sedwin# thirtieth day of Shahrivar.
1107174242Sedwin#
11082742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1109114173SwollmanRule	Iran	1978	1980	-	Mar	21	0:00	1:00	D
1110114173SwollmanRule	Iran	1978	only	-	Oct	21	0:00	0	S
1111114173SwollmanRule	Iran	1979	only	-	Sep	19	0:00	0	S
1112114173SwollmanRule	Iran	1980	only	-	Sep	23	0:00	0	S
1113114173SwollmanRule	Iran	1991	only	-	May	 3	0:00	1:00	D
1114114173SwollmanRule	Iran	1992	1995	-	Mar	22	0:00	1:00	D
1115114173SwollmanRule	Iran	1991	1995	-	Sep	22	0:00	0	S
1116114173SwollmanRule	Iran	1996	only	-	Mar	21	0:00	1:00	D
1117114173SwollmanRule	Iran	1996	only	-	Sep	21	0:00	0	S
1118114173SwollmanRule	Iran	1997	1999	-	Mar	22	0:00	1:00	D
1119114173SwollmanRule	Iran	1997	1999	-	Sep	22	0:00	0	S
1120114173SwollmanRule	Iran	2000	only	-	Mar	21	0:00	1:00	D
1121114173SwollmanRule	Iran	2000	only	-	Sep	21	0:00	0	S
1122114173SwollmanRule	Iran	2001	2003	-	Mar	22	0:00	1:00	D
1123114173SwollmanRule	Iran	2001	2003	-	Sep	22	0:00	0	S
1124114173SwollmanRule	Iran	2004	only	-	Mar	21	0:00	1:00	D
1125114173SwollmanRule	Iran	2004	only	-	Sep	21	0:00	0	S
1126158421SwollmanRule	Iran	2005	only	-	Mar	22	0:00	1:00	D
1127158421SwollmanRule	Iran	2005	only	-	Sep	22	0:00	0	S
1128172479SedwinRule	Iran	2008	only	-	Mar	21	0:00	1:00	D
1129172479SedwinRule	Iran	2008	only	-	Sep	21	0:00	0	S
1130172479SedwinRule	Iran	2009	2011	-	Mar	22	0:00	1:00	D
1131172479SedwinRule	Iran	2009	2011	-	Sep	22	0:00	0	S
1132172479SedwinRule	Iran	2012	only	-	Mar	21	0:00	1:00	D
1133172479SedwinRule	Iran	2012	only	-	Sep	21	0:00	0	S
1134172479SedwinRule	Iran	2013	2015	-	Mar	22	0:00	1:00	D
1135172479SedwinRule	Iran	2013	2015	-	Sep	22	0:00	0	S
1136172479SedwinRule	Iran	2016	only	-	Mar	21	0:00	1:00	D
1137172479SedwinRule	Iran	2016	only	-	Sep	21	0:00	0	S
1138172479SedwinRule	Iran	2017	2019	-	Mar	22	0:00	1:00	D
1139172479SedwinRule	Iran	2017	2019	-	Sep	22	0:00	0	S
1140172479SedwinRule	Iran	2020	only	-	Mar	21	0:00	1:00	D
1141172479SedwinRule	Iran	2020	only	-	Sep	21	0:00	0	S
1142172479SedwinRule	Iran	2021	2023	-	Mar	22	0:00	1:00	D
1143172479SedwinRule	Iran	2021	2023	-	Sep	22	0:00	0	S
1144172479SedwinRule	Iran	2024	only	-	Mar	21	0:00	1:00	D
1145172479SedwinRule	Iran	2024	only	-	Sep	21	0:00	0	S
1146172479SedwinRule	Iran	2025	2027	-	Mar	22	0:00	1:00	D
1147172479SedwinRule	Iran	2025	2027	-	Sep	22	0:00	0	S
1148172479SedwinRule	Iran	2028	2029	-	Mar	21	0:00	1:00	D
1149172479SedwinRule	Iran	2028	2029	-	Sep	21	0:00	0	S
1150172479SedwinRule	Iran	2030	2031	-	Mar	22	0:00	1:00	D
1151172479SedwinRule	Iran	2030	2031	-	Sep	22	0:00	0	S
1152172479SedwinRule	Iran	2032	2033	-	Mar	21	0:00	1:00	D
1153172479SedwinRule	Iran	2032	2033	-	Sep	21	0:00	0	S
1154172479SedwinRule	Iran	2034	2035	-	Mar	22	0:00	1:00	D
1155172479SedwinRule	Iran	2034	2035	-	Sep	22	0:00	0	S
1156309583Sglebius#
1157309583Sglebius# The following rules are approximations starting in the year 2038.
1158309583Sglebius# These are the best post-2037 approximations available, given the
1159309583Sglebius# restrictions of a single rule using a Gregorian-based data format.
1160309583Sglebius# At some point this table will need to be extended, though quite
1161309583Sglebius# possibly Iran will change the rules first.
1162309583SglebiusRule	Iran	2036	max	-	Mar	21	0:00	1:00	D
1163309583SglebiusRule	Iran	2036	max	-	Sep	21	0:00	0	S
1164309583Sglebius
11652742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
11662742SwollmanZone	Asia/Tehran	3:25:44	-	LMT	1916
1167273718Sedwin			3:25:44	-	TMT	1946     # Tehran Mean Time
1168325324Sgordon			3:30	-	+0330	1977 Nov
1169325324Sgordon			4:00	Iran	+04/+05	1979
1170325324Sgordon			3:30	Iran	+0330/+0430
11712742Swollman
117264499Swollman
11732742Swollman# Iraq
117464499Swollman#
1175149514Swollman# From Jonathan Lennox (2000-06-12):
117664499Swollman# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
117775267Swollman# the U.S. edition) on the Iraqi Kurds contains a paragraph:
117864499Swollman# "The three northern provinces ... switched their clocks this spring and
117964499Swollman# are an hour ahead of Baghdad."
118064499Swollman#
118164499Swollman# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
118264499Swollman# In the past, some Kurdish nationalists, as a protest to the Iraqi
118364499Swollman# Government, did not adhere to daylight saving time.  They referred
118464499Swollman# to daylight saving as Saddam time.  But, as of today, the time zone
118564499Swollman# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
118664499Swollman#
118764499Swollman# So we'll ignore the Economist's claim.
118864499Swollman
1189177591Sedwin# From Steffen Thorsen (2008-03-10):
1190177591Sedwin# The cabinet in Iraq abolished DST last week, according to the following
1191177591Sedwin# news sources (in Arabic):
1192177591Sedwin# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
1193177591Sedwin# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
1194177591Sedwin#
1195177591Sedwin# We have published a short article in English about the change:
1196325324Sgordon# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
1197177591Sedwin
11982742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
11992742SwollmanRule	Iraq	1982	only	-	May	1	0:00	1:00	D
12002742SwollmanRule	Iraq	1982	1984	-	Oct	1	0:00	0	S
12012742SwollmanRule	Iraq	1983	only	-	Mar	31	0:00	1:00	D
12022742SwollmanRule	Iraq	1984	1985	-	Apr	1	0:00	1:00	D
120320094SwollmanRule	Iraq	1985	1990	-	Sep	lastSun	1:00s	0	S
120420094SwollmanRule	Iraq	1986	1990	-	Mar	lastSun	1:00s	1:00	D
1205270728Spluknet# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo.
1206158421Swollman# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
1207169811Swollman#
1208177591SedwinRule	Iraq	1991	2007	-	Apr	 1	3:00s	1:00	D
1209177591SedwinRule	Iraq	1991	2007	-	Oct	 1	3:00s	0	S
12102742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
12112742SwollmanZone	Asia/Baghdad	2:57:40	-	LMT	1890
1212273718Sedwin			2:57:36	-	BMT	1918     # Baghdad Mean Time?
1213325324Sgordon			3:00	-	+03	1982 May
1214325324Sgordon			3:00	Iraq	+03/+04
12152742Swollman
12162742Swollman
12172742Swollman###############################################################################
12182742Swollman
12192742Swollman# Israel
12202742Swollman
122175267Swollman# From Ephraim Silverberg (2001-01-11):
122275267Swollman#
122375267Swollman# I coined "IST/IDT" circa 1988.  Until then there were three
122475267Swollman# different abbreviations in use:
122575267Swollman#
122675267Swollman# JST  Jerusalem Standard Time [Danny Braniss, Hebrew University]
122775267Swollman# IZT  Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
122875267Swollman# EEST Eastern Europe Standard Time [used by almost everyone else]
122975267Swollman#
123075267Swollman# Since timezones should be called by country and not capital cities,
123175267Swollman# I ruled out JST.  As Israel is in Asia Minor and not Eastern Europe,
123275267Swollman# EEST was equally unacceptable.  Since "zonal" was not compatible with
123375267Swollman# any other timezone abbreviation, I felt that 'IST' was the way to go
123475267Swollman# and, indeed, it has received almost universal acceptance in timezone
123575267Swollman# settings in Israeli computers.
123675267Swollman#
123775267Swollman# In any case, I am happy to share timezone abbreviations with India,
123875267Swollman# high on my favorite-country list (and not only because my wife's
123975267Swollman# family is from India).
12402742Swollman
1241158421Swollman# From Shanks & Pottenger:
12422742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
12432742SwollmanRule	Zion	1940	only	-	Jun	 1	0:00	1:00	D
12442742SwollmanRule	Zion	1942	1944	-	Nov	 1	0:00	0	S
12452742SwollmanRule	Zion	1943	only	-	Apr	 1	2:00	1:00	D
12462742SwollmanRule	Zion	1944	only	-	Apr	 1	0:00	1:00	D
12472742SwollmanRule	Zion	1945	only	-	Apr	16	0:00	1:00	D
12482742SwollmanRule	Zion	1945	only	-	Nov	 1	2:00	0	S
12492742SwollmanRule	Zion	1946	only	-	Apr	16	2:00	1:00	D
12502742SwollmanRule	Zion	1946	only	-	Nov	 1	0:00	0	S
12512742SwollmanRule	Zion	1948	only	-	May	23	0:00	2:00	DD
12522742SwollmanRule	Zion	1948	only	-	Sep	 1	0:00	1:00	D
12532742SwollmanRule	Zion	1948	1949	-	Nov	 1	2:00	0	S
12542742SwollmanRule	Zion	1949	only	-	May	 1	0:00	1:00	D
12552742SwollmanRule	Zion	1950	only	-	Apr	16	0:00	1:00	D
12562742SwollmanRule	Zion	1950	only	-	Sep	15	3:00	0	S
12572742SwollmanRule	Zion	1951	only	-	Apr	 1	0:00	1:00	D
12582742SwollmanRule	Zion	1951	only	-	Nov	11	3:00	0	S
12592742SwollmanRule	Zion	1952	only	-	Apr	20	2:00	1:00	D
12602742SwollmanRule	Zion	1952	only	-	Oct	19	3:00	0	S
12612742SwollmanRule	Zion	1953	only	-	Apr	12	2:00	1:00	D
12622742SwollmanRule	Zion	1953	only	-	Sep	13	3:00	0	S
12632742SwollmanRule	Zion	1954	only	-	Jun	13	0:00	1:00	D
12642742SwollmanRule	Zion	1954	only	-	Sep	12	0:00	0	S
12652742SwollmanRule	Zion	1955	only	-	Jun	11	2:00	1:00	D
12662742SwollmanRule	Zion	1955	only	-	Sep	11	0:00	0	S
12672742SwollmanRule	Zion	1956	only	-	Jun	 3	0:00	1:00	D
12682742SwollmanRule	Zion	1956	only	-	Sep	30	3:00	0	S
12692742SwollmanRule	Zion	1957	only	-	Apr	29	2:00	1:00	D
12702742SwollmanRule	Zion	1957	only	-	Sep	22	0:00	0	S
12712742SwollmanRule	Zion	1974	only	-	Jul	 7	0:00	1:00	D
12722742SwollmanRule	Zion	1974	only	-	Oct	13	0:00	0	S
12732742SwollmanRule	Zion	1975	only	-	Apr	20	0:00	1:00	D
12742742SwollmanRule	Zion	1975	only	-	Aug	31	0:00	0	S
12752742SwollmanRule	Zion	1985	only	-	Apr	14	0:00	1:00	D
12762742SwollmanRule	Zion	1985	only	-	Sep	15	0:00	0	S
12772742SwollmanRule	Zion	1986	only	-	May	18	0:00	1:00	D
12782742SwollmanRule	Zion	1986	only	-	Sep	 7	0:00	0	S
12792742SwollmanRule	Zion	1987	only	-	Apr	15	0:00	1:00	D
12802742SwollmanRule	Zion	1987	only	-	Sep	13	0:00	0	S
12812742Swollman
1282263041Sedwin# From Avigdor Finkelstein (2014-03-05):
1283263041Sedwin# I check the Parliament (Knesset) records and there it's stated that the
1284263041Sedwin# [1988] transition should take place on Saturday night, when the Sabbath
1285263041Sedwin# ends and changes to Sunday.
1286263041SedwinRule	Zion	1988	only	-	Apr	10	0:00	1:00	D
1287263041SedwinRule	Zion	1988	only	-	Sep	 4	0:00	0	S
1288263041Sedwin
1289149514Swollman# From Ephraim Silverberg
1290149514Swollman# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
1291149514Swollman# and 2005-02-17):
129230711Swollman
12932742Swollman# According to the Office of the Secretary General of the Ministry of
12942742Swollman# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
129543543Swollman# One thing is entrenched in law, however: that there must be at least 150
129643543Swollman# days of daylight savings time annually.  From 1993-1998, the change to
129743543Swollman# daylight savings time was on a Friday morning from midnight IST to
129843543Swollman# 1 a.m IDT; up until 1998, the change back to standard time was on a
129943543Swollman# Saturday night from midnight daylight savings time to 11 p.m. standard
130043543Swollman# time.  1996 is an exception to this rule where the change back to standard
130143543Swollman# time took place on Sunday night instead of Saturday night to avoid
130264499Swollman# conflicts with the Jewish New Year.  In 1999, the change to
130364499Swollman# daylight savings time was still on a Friday morning but from
130443543Swollman# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
130564499Swollman# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
130664499Swollman# 1999 only.  In the year 2000, the change to daylight savings time was
130764499Swollman# similar to 1999, but although the change back will be on a Friday, it
130864499Swollman# will take place from 1 a.m. IDT to midnight IST.  Starting in 2001, all
130964499Swollman# changes to/from will take place at 1 a.m. old time, but now there is no
131064499Swollman# rule as to what day of the week it will take place in as the start date
131164499Swollman# (except in 2003) is the night after the Passover Seder (i.e. the eve
131264499Swollman# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
131364499Swollman# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
131464499Swollman# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
13152742Swollman
13162742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
13172742SwollmanRule	Zion	1989	only	-	Apr	30	0:00	1:00	D
131819878SwollmanRule	Zion	1989	only	-	Sep	 3	0:00	0	S
13192742SwollmanRule	Zion	1990	only	-	Mar	25	0:00	1:00	D
132019878SwollmanRule	Zion	1990	only	-	Aug	26	0:00	0	S
13212742SwollmanRule	Zion	1991	only	-	Mar	24	0:00	1:00	D
132219878SwollmanRule	Zion	1991	only	-	Sep	 1	0:00	0	S
13232742SwollmanRule	Zion	1992	only	-	Mar	29	0:00	1:00	D
132419878SwollmanRule	Zion	1992	only	-	Sep	 6	0:00	0	S
13252742SwollmanRule	Zion	1993	only	-	Apr	 2	0:00	1:00	D
132619878SwollmanRule	Zion	1993	only	-	Sep	 5	0:00	0	S
13272742Swollman
132814343Swollman# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
132914343Swollman# Ministry of Interior, Jerusalem, Israel.  The spokeswoman can be reached by
133030711Swollman# calling the office directly at 972-2-6701447 or 972-2-6701448.
13312742Swollman
133275267Swollman# Rule	NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
133319878SwollmanRule	Zion	1994	only	-	Apr	 1	0:00	1:00	D
133419878SwollmanRule	Zion	1994	only	-	Aug	28	0:00	0	S
133519878SwollmanRule	Zion	1995	only	-	Mar	31	0:00	1:00	D
133619878SwollmanRule	Zion	1995	only	-	Sep	 3	0:00	0	S
13372742Swollman
133830711Swollman# The dates for 1996 were determined by the Minister of Interior of the
133930711Swollman# time, Haim Ramon.  The official announcement regarding 1996-1998
134043014Swollman# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
134114343Swollman#
1342149514Swollman#   ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
134314343Swollman#
134443014Swollman# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
134530711Swollman#
134658787Sru# The official announcements for the years 1997-1999 can be viewed at:
134743014Swollman#
1348149514Swollman#   ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
134943014Swollman#
135058787Sru#       where YYYY is the relevant year.
13519908Swollman
135214343Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
135330711SwollmanRule	Zion	1996	only	-	Mar	15	0:00	1:00	D
135419878SwollmanRule	Zion	1996	only	-	Sep	16	0:00	0	S
135530711SwollmanRule	Zion	1997	only	-	Mar	21	0:00	1:00	D
135630711SwollmanRule	Zion	1997	only	-	Sep	14	0:00	0	S
135730711SwollmanRule	Zion	1998	only	-	Mar	20	0:00	1:00	D
135843014SwollmanRule	Zion	1998	only	-	Sep	 6	0:00	0	S
135943543SwollmanRule	Zion	1999	only	-	Apr	 2	2:00	1:00	D
136043543SwollmanRule	Zion	1999	only	-	Sep	 3	2:00	0	S
136114343Swollman
136264499Swollman# The Knesset Interior Committee has changed the dates for 2000 for
136364499Swollman# the third time in just over a year and have set new dates for the
136464499Swollman# years 2001-2004 as well.
136558787Sru#
136664499Swollman# The official announcement for the start date of 2000 can be viewed at:
136758787Sru#
1368149514Swollman#	ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
136964499Swollman#
137064499Swollman# The official announcement for the end date of 2000 and the dates
137164499Swollman# for the years 2001-2004 can be viewed at:
137264499Swollman#
1373149514Swollman#	ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
137443014Swollman
137558787Sru# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
137658787SruRule	Zion	2000	only	-	Apr	14	2:00	1:00	D
137764499SwollmanRule	Zion	2000	only	-	Oct	 6	1:00	0	S
137864499SwollmanRule	Zion	2001	only	-	Apr	 9	1:00	1:00	D
137964499SwollmanRule	Zion	2001	only	-	Sep	24	1:00	0	S
138064499SwollmanRule	Zion	2002	only	-	Mar	29	1:00	1:00	D
138164499SwollmanRule	Zion	2002	only	-	Oct	 7	1:00	0	S
138264499SwollmanRule	Zion	2003	only	-	Mar	28	1:00	1:00	D
138364499SwollmanRule	Zion	2003	only	-	Oct	 3	1:00	0	S
138464499SwollmanRule	Zion	2004	only	-	Apr	 7	1:00	1:00	D
138564499SwollmanRule	Zion	2004	only	-	Sep	22	1:00	0	S
138658787Sru
1387149514Swollman# The proposed law agreed upon by the Knesset Interior Committee on
1388149514Swollman# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
1389149514Swollman# last Friday before April 2nd (i.e. the last Friday in March or April
1390149514Swollman# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
1391149514Swollman# night _before_ the fast of Yom Kippur.
1392149514Swollman#
1393149514Swollman# Those who can read Hebrew can view the announcement at:
1394149514Swollman#
1395149514Swollman#	ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
139630711Swollman
1397242208Sedwin# From Paul Eggert (2012-10-26):
1398149514Swollman# I used Ephraim Silverberg's dst-israel.el program
1399149514Swollman# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20)
1400149514Swollman# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
1401242208Sedwin# to generate the transitions from 2005 through 2012.
1402149514Swollman# (I replaced "lastFri" with "Fri>=26" by hand.)
1403242208Sedwin# The spring transitions all correspond to the following Rule:
1404149514Swollman#
1405242208Sedwin# Rule	Zion	2005	2012	-	Mar	Fri>=26	2:00	1:00	D
1406149514Swollman#
1407149514Swollman# but older zic implementations (e.g., Solaris 8) do not support
1408149514Swollman# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
1409149514Swollman# springtime transitions explicitly.
1410149514Swollman
1411149514Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1412149514SwollmanRule	Zion	2005	only	-	Apr	 1	2:00	1:00	D
1413149514SwollmanRule	Zion	2005	only	-	Oct	 9	2:00	0	S
1414149514SwollmanRule	Zion	2006	2010	-	Mar	Fri>=26	2:00	1:00	D
1415149514SwollmanRule	Zion	2006	only	-	Oct	 1	2:00	0	S
1416149514SwollmanRule	Zion	2007	only	-	Sep	16	2:00	0	S
1417149514SwollmanRule	Zion	2008	only	-	Oct	 5	2:00	0	S
1418149514SwollmanRule	Zion	2009	only	-	Sep	27	2:00	0	S
1419149514SwollmanRule	Zion	2010	only	-	Sep	12	2:00	0	S
1420149514SwollmanRule	Zion	2011	only	-	Apr	 1	2:00	1:00	D
1421149514SwollmanRule	Zion	2011	only	-	Oct	 2	2:00	0	S
1422242208SedwinRule	Zion	2012	only	-	Mar	Fri>=26	2:00	1:00	D
1423149514SwollmanRule	Zion	2012	only	-	Sep	23	2:00	0	S
1424149514Swollman
1425253009Sedwin# From Ephraim Silverberg (2013-06-27):
1426253009Sedwin# On June 23, 2013, the Israeli government approved changes to the
1427253009Sedwin# Time Decree Law.  The next day, the changes passed the First Reading
1428253009Sedwin# in the Knesset.  The law is expected to pass the Second and Third
1429253009Sedwin# (final) Readings by the beginning of September 2013.
1430242208Sedwin#
1431253009Sedwin# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
1432253009Sedwin# in March.  DST ends at 02:00 on the last Sunday of October.
1433242208Sedwin
1434242208Sedwin# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1435242208SedwinRule	Zion	2013	max	-	Mar	Fri>=23	2:00	1:00	D
1436253009SedwinRule	Zion	2013	max	-	Oct	lastSun	2:00	0	S
1437242208Sedwin
14382742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1439253009SedwinZone	Asia/Jerusalem	2:20:54 -	LMT	1880
1440273718Sedwin			2:20:40	-	JMT	1918 # Jerusalem Mean Time?
14412742Swollman			2:00	Zion	I%sT
14422742Swollman
14432742Swollman
1444105196Swollman
14452742Swollman###############################################################################
14462742Swollman
14472742Swollman# Japan
14482742Swollman
1449270728Spluknet# '9:00' and 'JST' is from Guy Harris.
14502742Swollman
1451149514Swollman# From Paul Eggert (1995-03-06):
14529908Swollman# Today's _Asahi Evening News_ (page 4) reports that Japan had
1453270728Spluknet# daylight saving between 1948 and 1951, but "the system was discontinued
1454270728Spluknet# because the public believed it would lead to longer working hours."
1455149590Swollman
1456273718Sedwin# From Mayumi Negishi in the 2005-08-10 Japan Times:
1457273718Sedwin# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm
1458149590Swollman# Occupation authorities imposed daylight-saving time on Japan on
1459149590Swollman# [1948-05-01]....  But lack of prior debate and the execution of
1460149590Swollman# daylight-saving time just three days after the bill was passed generated
1461149590Swollman# deep hatred of the concept....  The Diet unceremoniously passed a bill to
1462149590Swollman# dump the unpopular system in October 1951, less than a month after the San
1463149590Swollman# Francisco Peace Treaty was signed.  (A government poll in 1951 showed 53%
1464149590Swollman# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
1465149590Swollman# wanted to keep it.)
1466149590Swollman
1467158421Swollman# From Paul Eggert (2006-03-22):
1468158421Swollman# Shanks & Pottenger write that DST in Japan during those years was as follows:
14699908Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1470149590SwollmanRule	Japan	1948	only	-	May	Sun>=1	2:00	1:00	D
1471149590SwollmanRule	Japan	1948	1951	-	Sep	Sat>=8	2:00	0	S
1472149590SwollmanRule	Japan	1949	only	-	Apr	Sun>=1	2:00	1:00	D
1473149590SwollmanRule	Japan	1950	1951	-	May	Sun>=1	2:00	1:00	D
1474149590Swollman# but the only locations using it (for birth certificates, presumably, since
1475158421Swollman# their audience is astrologers) were US military bases.  For now, assume
1476149590Swollman# that for most purposes daylight-saving time was observed; otherwise, what
1477149590Swollman# would have been the point of the 1951 poll?
14782742Swollman
147943543Swollman# From Hideyuki Suzuki (1998-11-09):
148043543Swollman# 'Tokyo' usually stands for the former location of Tokyo Astronomical
1481273718Sedwin# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s),
1482273718Sedwin# 35 degrees 39' 16.0" N.
148343543Swollman# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
148443543Swollman# edited by National Astronomical Observatory of Japan....
148543543Swollman# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
148643543Swollman# The law is enacted on 1886-07-07.
148743543Swollman
148843543Swollman# From Hideyuki Suzuki (1998-11-16):
148943543Swollman# The ordinance No. 51 (1886) established "standard time" in Japan,
1490270728Spluknet# which stands for the time on 135 degrees E.
149143543Swollman# In the ordinance No. 167 (1895), "standard time" was renamed to "central
149243543Swollman# standard time".  And the same ordinance also established "western standard
1493270728Spluknet# time", which stands for the time on 120 degrees E....  But "western standard
149443543Swollman# time" was abolished in the ordinance No. 529 (1937).  In the ordinance No.
149543543Swollman# 167, there is no mention regarding for what place western standard time is
149643543Swollman# standard....
149743543Swollman#
149843543Swollman# I wrote "ordinance" above, but I don't know how to translate.
149943543Swollman# In Japanese it's "chokurei", which means ordinance from emperor.
150043543Swollman
1501270728Spluknet# From Yu-Cheng Chuang (2013-07-12):
1502270728Spluknet# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
1503270728Spluknet# about standard time" ... The adoption began from Jan 1, 1896.
1504325324Sgordon# https://ja.wikisource.org/wiki/������������������������_(���������)
1505270728Spluknet#
1506270728Spluknet# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
1507270728Spluknet# means the whole Japan territory, including later occupations, adopt Japan
1508270728Spluknet# Central Time (UTC+9). The adoption began on Oct 1, 1937.
1509325324Sgordon# https://ja.wikisource.org/wiki/���������������������������������������������������������������������������������
151043543Swollman
15112742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
151243543SwollmanZone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
1513149590Swollman			9:00	Japan	J%sT
151443543Swollman# Since 1938, all Japanese possessions have been like Asia/Tokyo.
15152742Swollman
15162742Swollman# Jordan
151758787Sru#
1518270728Spluknet# From <http://star.arabia.com/990701/JO9.html>
1519270728Spluknet# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09):
152058787Sru# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
152158787Sru# in accordance with the government's decision to implement summer time
152258787Sru# all year round.
152358787Sru#
1524270728Spluknet# From <http://star.arabia.com/990930/JO9.html>
1525270728Spluknet# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09):
152658787Sru# Winter time starts today Thursday, 30 September. Clocks will be turned back
152758787Sru# by one hour.  This is the latest government decision and it's final!
152858787Sru# The decision was taken because of the increase in working hours in
152958787Sru# government's departments from six to seven hours.
153058787Sru#
1531153670Swollman# From Paul Eggert (2005-11-22):
1532153670Swollman# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
1533153670Swollman#
1534158421Swollman# From Steffen Thorsen (2005-11-23):
1535158421Swollman# For Jordan I have received multiple independent user reports every year
1536158421Swollman# about DST end dates, as the end-rule is different every year.
1537158421Swollman#
1538163302Sru# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
1539163302Sru# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
1540163302Sru# "Jordan will switch to winter time on Friday, October 27".
1541163302Sru#
1542190991Sedwin
1543190991Sedwin# From Steffen Thorsen (2009-04-02):
1544190991Sedwin# This single one might be good enough, (2009-03-24, Arabic):
1545190991Sedwin# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279
1546190991Sedwin#
1547190991Sedwin# Google's translation:
1548190991Sedwin#
1549190991Sedwin# > The Council of Ministers decided in 2002 to adopt the principle of timely
1550190991Sedwin# > submission of the summer at 60 minutes as of midnight on the last Thursday
1551190991Sedwin# > of the month of March of each year.
1552190991Sedwin#
1553190991Sedwin# So - this means the midnight between Thursday and Friday since 2002.
1554190991Sedwin
1555190991Sedwin# From Arthur David Olson (2009-04-06):
1556190991Sedwin# We still have Jordan switching to DST on Thursdays in 2000 and 2001.
1557190991Sedwin
1558242208Sedwin# From Steffen Thorsen (2012-10-25):
1559242208Sedwin# Yesterday the government in Jordan announced that they will not
1560242208Sedwin# switch back to standard time this winter, so the will stay on DST
1561242208Sedwin# until about the same time next year (at least).
1562242208Sedwin# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950
1563242208Sedwin
1564259626Sedwin# From Steffen Thorsen (2013-12-11):
1565259626Sedwin# Jordan Times and other sources say that Jordan is going back to
1566259626Sedwin# UTC+2 on 2013-12-19 at midnight:
1567259626Sedwin# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime
1568259626Sedwin# Official, in Arabic:
1569259626Sedwin# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14
1570259626Sedwin# ... Our background/permalink about it
1571325324Sgordon# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
1572259626Sedwin# ...
1573259626Sedwin# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P
1574259626Sedwin# ... says midnight for the coming one and 1:00 for the ones in the future
1575259626Sedwin# (and they will use DST again next year, using the normal schedule).
1576259626Sedwin
1577259626Sedwin# From Paul Eggert (2013-12-11):
1578259626Sedwin# As Steffen suggested, consider the past 21-month experiment to be DST.
1579259626Sedwin
15802742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
158175267SwollmanRule	Jordan	1973	only	-	Jun	6	0:00	1:00	S
158275267SwollmanRule	Jordan	1973	1975	-	Oct	1	0:00	0	-
158375267SwollmanRule	Jordan	1974	1977	-	May	1	0:00	1:00	S
158475267SwollmanRule	Jordan	1976	only	-	Nov	1	0:00	0	-
158575267SwollmanRule	Jordan	1977	only	-	Oct	1	0:00	0	-
158675267SwollmanRule	Jordan	1978	only	-	Apr	30	0:00	1:00	S
158775267SwollmanRule	Jordan	1978	only	-	Sep	30	0:00	0	-
158875267SwollmanRule	Jordan	1985	only	-	Apr	1	0:00	1:00	S
158975267SwollmanRule	Jordan	1985	only	-	Oct	1	0:00	0	-
159075267SwollmanRule	Jordan	1986	1988	-	Apr	Fri>=1	0:00	1:00	S
159175267SwollmanRule	Jordan	1986	1990	-	Oct	Fri>=1	0:00	0	-
159275267SwollmanRule	Jordan	1989	only	-	May	8	0:00	1:00	S
159375267SwollmanRule	Jordan	1990	only	-	Apr	27	0:00	1:00	S
159475267SwollmanRule	Jordan	1991	only	-	Apr	17	0:00	1:00	S
159575267SwollmanRule	Jordan	1991	only	-	Sep	27	0:00	0	-
159675267SwollmanRule	Jordan	1992	only	-	Apr	10	0:00	1:00	S
159775267SwollmanRule	Jordan	1992	1993	-	Oct	Fri>=1	0:00	0	-
159875267SwollmanRule	Jordan	1993	1998	-	Apr	Fri>=1	0:00	1:00	S
159975267SwollmanRule	Jordan	1994	only	-	Sep	Fri>=15	0:00	0	-
160075267SwollmanRule	Jordan	1995	1998	-	Sep	Fri>=15	0:00s	0	-
160158787SruRule	Jordan	1999	only	-	Jul	 1	0:00s	1:00	S
1602190991SedwinRule	Jordan	1999	2002	-	Sep	lastFri	0:00s	0	-
1603190991SedwinRule	Jordan	2000	2001	-	Mar	lastThu	0:00s	1:00	S
1604257681SedwinRule	Jordan	2002	2012	-	Mar	lastThu	24:00	1:00	S
1605153670SwollmanRule	Jordan	2003	only	-	Oct	24	0:00s	0	-
1606153670SwollmanRule	Jordan	2004	only	-	Oct	15	0:00s	0	-
1607163302SruRule	Jordan	2005	only	-	Sep	lastFri	0:00s	0	-
1608259626SedwinRule	Jordan	2006	2011	-	Oct	lastFri	0:00s	0	-
1609259626SedwinRule	Jordan	2013	only	-	Dec	20	0:00	0	-
1610259626SedwinRule	Jordan	2014	max	-	Mar	lastThu	24:00	1:00	S
1611259626SedwinRule	Jordan	2014	max	-	Oct	lastFri	0:00s	0	-
16122742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
16132742SwollmanZone	Asia/Amman	2:23:44 -	LMT	1931
1614259626Sedwin			2:00	Jordan	EE%sT
16152742Swollman
1616149514Swollman
16172742Swollman# Kazakhstan
1618149514Swollman
1619286750Sedwin# From Kazakhstan Embassy's News Bulletin No. 11
1620270728Spluknet# <http://www.kazsociety.org.uk/news/2005/03/30.htm> (2005-03-21):
1621149514Swollman# The Government of Kazakhstan passed a resolution March 15 abolishing
1622149514Swollman# daylight saving time citing lack of economic benefits and health
1623149514Swollman# complications coupled with a decrease in productivity.
162493799Swollman#
1625149514Swollman# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
1626149514Swollman# ... what happened was that the former Kazakhstan Eastern time zone
1627149514Swollman# was "blended" with the Central zone.  Therefore, Kazakhstan now has
1628149514Swollman# two time zones, and difference between them is one hour.  The zone
1629149514Swollman# closer to UTC is the former Western zone (probably still called the
1630325324Sgordon# same), encompassing four provinces in the west: Aqt��be, Atyra��,
1631325324Sgordon# Mangghysta��, and West Kazakhstan.  The other zone encompasses
1632149514Swollman# everything else....  I guess that would make Kazakhstan time zones
1633149514Swollman# de jure UTC+5 and UTC+6 respectively.
1634149514Swollman
1635325324Sgordon# From Stepan Golosunov (2016-03-27):
1636309583Sglebius# Review of the linked documents from http://adilet.zan.kz/
1637309583Sglebius# produced the following data for post-1991 Kazakhstan:
1638114173Swollman#
1639309583Sglebius# 0. Act of the Cabinet of Ministers of the USSR
1640309583Sglebius# from 1991-02-04 No. 20
1641309583Sglebius# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
1642309583Sglebius# removed the extra hour ("decree time") on the territory of the USSR
1643309583Sglebius# starting with the last Sunday of March 1991.
1644309583Sglebius# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
1645309583Sglebius# Turkmen SSR and Uzbek SSR to not have "summer" time.
1646309583Sglebius#
1647309583Sglebius# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
1648309583Sglebius# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
1649309583Sglebius# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
1650309583Sglebius# text.
1651309583Sglebius#
1652309583Sglebius# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
1653309583Sglebius# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
1654309583Sglebius# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during
1655309583Sglebius# transition to "summer" time:
1656309583Sglebius# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
1657309583Sglebius# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
1658309583Sglebius# were to move clocks 1 hour forward.
1659309583Sglebius# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
1660309583Sglebius# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
1661309583Sglebius# of the Uzbek SSR were to move clocks 1 hour backwards.
1662309583Sglebius# Other territories were to not move clocks.
1663309583Sglebius# When the "summer" time would end on 1991-09-29, clocks were to be
1664309583Sglebius# moved 1 hour backwards on the territory of the USSR excluding
1665309583Sglebius# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
1666309583Sglebius#
1667309583Sglebius# Apparently there were last minute changes. Apparently Kazakh act No. 170
1668309583Sglebius# was one of such changes.
1669309583Sglebius#
1670309583Sglebius# https://ru.wikipedia.org/wiki/������������������ ����������
1671309583Sglebius# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
1672309583Sglebius# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
1673309583Sglebius# were to not move clocks and Uralsk oblast was to move clocks
1674309583Sglebius# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
1675309583Sglebius# (Probably there were changes even after that publication. There is an
1676309583Sglebius# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
1677309583Sglebius# move clocks.)
1678309583Sglebius#
1679309583Sglebius# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
1680309583Sglebius# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
1681325324Sgordon# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
1682309583Sglebius# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
1683309583Sglebius#
1684309583Sglebius# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
1685309583Sglebius# from 1992-01-13 No. 28
1686309583Sglebius# http://adilet.zan.kz/rus/docs/P920000028_
1687309583Sglebius# (text includes modification from the 1996 act)
1688309583Sglebius# introduced new rules for calculation of time, mirroring Russian
1689309583Sglebius# 1992-01-08 act.  It specified that time would be calculated
1690309583Sglebius# according to time belts plus extra hour ("decree time"), moved clocks
1691309583Sglebius# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
1692309583Sglebius# 2:00, specified DST rules.  It acknowledged that Kazakhstan was
1693309583Sglebius# located in the fourth and the fifth time belts and specified the
1694325324Sgordon# border between them to be located east of Qostanay and Aktyubinsk
1695325324Sgordon# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
1696309583Sglebius# time belt).
1697309583Sglebius#
1698309583Sglebius# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
1699325324Sgordon# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyra�� and Qostanay oblasts; from
1700325324Sgordon# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
1701309583Sglebius#
1702309583Sglebius# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
1703309583Sglebius# from 1992-03-27 No. 284
1704309583Sglebius# http://adilet.zan.kz/rus/docs/P920000284_
1705325324Sgordon# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
1706309583Sglebius# since the last Sunday of March 1992, while keeping them in the fourth
1707309583Sglebius# and the fifth time belts respectively.
1708309583Sglebius#
1709309583Sglebius# 3. Order of the Prime Minister of the Republic of Kazakhstan
1710309583Sglebius# from 1994-09-23 No. 384
1711309583Sglebius# http://adilet.zan.kz/rus/docs/R940000384_
1712325324Sgordon# cancels the extra hour ("decree time") on the territory of Mangghysta��
1713309583Sglebius# oblast since the last Sunday of September 1994 (saying that time on
1714309583Sglebius# the territory would correspond to the third time belt as a
1715309583Sglebius# result)....
1716309583Sglebius#
1717309583Sglebius# 4. Act of the Government of the Republic of Kazakhstan
1718309583Sglebius# from 1996-05-08 No. 575
1719309583Sglebius# http://adilet.zan.kz/rus/docs/P960000575_
1720309583Sglebius# amends the 1992-01-13 act to end summer time in October instead
1721309583Sglebius# of September, mirroring identical Russian change from 1996-04-23 act.
1722309583Sglebius#
1723309583Sglebius# 5. Act of the Government of the Republic of Kazakhstan
1724309583Sglebius# from 1999-03-26 No. 305
1725309583Sglebius# http://adilet.zan.kz/rus/docs/P990000305_
1726325324Sgordon# cancels the extra hour ("decree time") for Atyra�� oblast since the
1727309583Sglebius# last Sunday of March 1999 while retaining the oblast in the fourth
1728309583Sglebius# time belt.
1729309583Sglebius#
1730325324Sgordon# This means change from +05/+06 to +04/+05....
1731309583Sglebius#
1732309583Sglebius# 6. Act of the Government of the Republic of Kazakhstan
1733309583Sglebius# from 2000-11-23 No. 1749
1734309583Sglebius# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
1735309583Sglebius# replaces the previous five documents.
1736309583Sglebius#
1737309583Sglebius# The only changes I noticed are in definition of the border between the
1738309583Sglebius# fourth and the fifth time belts.  They account for changes in spelling
1739309583Sglebius# and administrative division (splitting of Turgai oblast in 1997
1740325324Sgordon# probably changed time in territories incorporated into Qostanay oblast
1741325324Sgordon# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
1742309583Sglebius# from being in the fifth time belt and not using decree time into the
1743325324Sgordon# fourth time belt (no change in practice).
1744309583Sglebius#
1745309583Sglebius# 7. Act of the Government of the Republic of Kazakhstan
1746309583Sglebius# from 2003-12-29 No. 1342
1747309583Sglebius# http://adilet.zan.kz/rus/docs/P030001342_
1748309583Sglebius# modified the 2000-11-23 act.  No relevant changes, apparently.
1749309583Sglebius#
1750309583Sglebius# 8. Act of the Government of the Republic of Kazakhstan
1751309583Sglebius# from 2004-07-20 No. 775
1752309583Sglebius# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
1753325324Sgordon# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
1754309583Sglebius# the fifth time belt and add Aktobe oblast to the list of regions not
1755309583Sglebius# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
1756309583Sglebius# zones (+04/+05 and +06/+07).  The changes were to be implemented
1757309583Sglebius# during DST transitions in 2004 and 2005 but the acts got radically
1758309583Sglebius# amended before implementation happened.
1759309583Sglebius#
1760309583Sglebius# 9. Act of the Government of the Republic of Kazakhstan
1761309583Sglebius# from 2004-09-15 No. 1059
1762309583Sglebius# http://adilet.zan.kz/rus/docs/P040001059_
1763309583Sglebius# modified the 2000-11-23 act to remove exceptions from the "decree time"
1764309583Sglebius# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
1765325324Sgordon# 2004-07-20 act to implement changes for Atyra��, West Kazakhstan,
1766325324Sgordon# Qostanay, Qyzylorda and Mangghysta�� oblasts by not moving clocks
1767325324Sgordon# during the 2004 transition to "winter" time.
1768309583Sglebius#
1769325324Sgordon# This means transition from +04/+05 to +05/+06 for Atyra�� oblast (no
1770309583Sglebius# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
1771325324Sgordon# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
1772325324Sgordon# and Asia/Qyzylorda on 2004-10-31 at 3:00....
1773309583Sglebius#
1774309583Sglebius# 10. Act of the Government of the Republic of Kazakhstan
1775309583Sglebius# from 2005-03-15 No. 231
1776309583Sglebius# http://adilet.zan.kz/rus/docs/P050000231_
1777309583Sglebius# removes DST provisions from the 2000-11-23 act, removes most of the
1778309583Sglebius# (already implemented) provisions from the 2004-07-20 and 2004-09-15
1779309583Sglebius# acts, comes into effect 10 days after official publication.
1780309583Sglebius# The only practical effect seems to be the abolition of the summer
1781309583Sglebius# time.
1782309583Sglebius#
1783309583Sglebius# Unamended version of the act of the Government of the Russian Federation
1784309583Sglebius# No. 23 from 1992-01-08 [See 'europe' file for details].
1785309583Sglebius# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
1786309583Sglebius# act was to be enacted on the last Sunday of March 1992.
1787309583Sglebius
1788325324Sgordon# From Stepan Golosunov (2016-11-08):
1789325324Sgordon# Turgai reorganization should affect only southern part of Qostanay
1790325324Sgordon# oblast.  Which should probably be separated into Asia/Arkalyk zone.
1791325324Sgordon# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
1792325324Sgordon# according to wikipedia.)
1793325324Sgordon#
1794325324Sgordon# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
1795325324Sgordon# suggests that clocks were to be moved 40 minutes backwards on
1796325324Sgordon# 1920-01-01 to the fourth time belt.  But I do not understand
1797325324Sgordon# how that could happen....
1798325324Sgordon#
1799325324Sgordon# [For Atyrau and Oral] 1919 decree
1800325324Sgordon# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
1801325324Sgordon# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
1802325324Sgordon# the third time belt (before 1930 this means +03).
1803309583Sglebius
1804325324Sgordon# From Paul Eggert (2016-12-06):
1805325324Sgordon# The tables below reflect Golosunov's remarks, with exceptions as noted.
1806325324Sgordon
18072742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
180893799Swollman#
180993799Swollman# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
1810309583Sglebius# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
1811309583Sglebius# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
181243014SwollmanZone	Asia/Almaty	5:07:48 -	LMT	1924 May  2 # or Alma-Ata
1813309583Sglebius			5:00	-	+05	1930 Jun 21
1814309583Sglebius			6:00 RussiaAsia +06/+07	1991 Mar 31  2:00s
1815309583Sglebius			5:00 RussiaAsia	+05/+06	1992 Jan 19  2:00s
1816309583Sglebius			6:00 RussiaAsia	+06/+07	2004 Oct 31  2:00s
1817309583Sglebius			6:00	-	+06
1818309583Sglebius# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
1819325324Sgordon# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
1820325324Sgordon# see comments below.
182193799SwollmanZone	Asia/Qyzylorda	4:21:52 -	LMT	1924 May  2
1822309583Sglebius			4:00	-	+04	1930 Jun 21
1823309583Sglebius			5:00	-	+05	1981 Apr  1
1824309583Sglebius			5:00	1:00	+06	1981 Oct  1
1825309583Sglebius			6:00	-	+06	1982 Apr  1
1826309583Sglebius			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
1827309583Sglebius			4:00 RussiaAsia	+04/+05	1991 Sep 29  2:00s
1828309583Sglebius			5:00 RussiaAsia	+05/+06	1992 Jan 19  2:00s
1829309583Sglebius			6:00 RussiaAsia	+06/+07	1992 Mar 29  2:00s
1830309583Sglebius			5:00 RussiaAsia	+05/+06	2004 Oct 31  2:00s
1831309583Sglebius			6:00	-	+06
1832325324Sgordon# The following zone is like Asia/Qyzylorda except for being one
1833325324Sgordon# hour earlier from 1991-09-29 to 1992-03-29.  The 1991/2 rules for
1834325324Sgordon# Qostanay are unclear partly because of the 1997 Turgai
1835325324Sgordon# reorganization, so this zone is commented out for now.
1836325324Sgordon#Zone	Asia/Qostanay	4:14:20 -	LMT	1924 May  2
1837325324Sgordon#			4:00	-	+04	1930 Jun 21
1838325324Sgordon#			5:00	-	+05	1981 Apr  1
1839325324Sgordon#			5:00	1:00	+06	1981 Oct  1
1840325324Sgordon#			6:00	-	+06	1982 Apr  1
1841325324Sgordon#			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
1842325324Sgordon#			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00s
1843325324Sgordon#			5:00 RussiaAsia	+05/+06	2004 Oct 31  2:00s
1844325324Sgordon#			6:00	-	+06
1845325324Sgordon#
1846325324Sgordon# Aqt��be (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
184720094SwollmanZone	Asia/Aqtobe	3:48:40	-	LMT	1924 May  2
1848309583Sglebius			4:00	-	+04	1930 Jun 21
1849309583Sglebius			5:00	-	+05	1981 Apr  1
1850309583Sglebius			5:00	1:00	+06	1981 Oct  1
1851309583Sglebius			6:00	-	+06	1982 Apr  1
1852309583Sglebius			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
1853309583Sglebius			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00s
1854309583Sglebius			5:00 RussiaAsia	+05/+06	2004 Oct 31  2:00s
1855309583Sglebius			5:00	-	+05
1856325324Sgordon# Mangghysta�� (KZ-MAN)
185793799Swollman# Aqtau was not founded until 1963, but it represents an inhabited region,
185893799Swollman# so include time stamps before 1963.
185993799SwollmanZone	Asia/Aqtau	3:21:04	-	LMT	1924 May  2
1860309583Sglebius			4:00	-	+04	1930 Jun 21
1861309583Sglebius			5:00	-	+05	1981 Oct  1
1862309583Sglebius			6:00	-	+06	1982 Apr  1
1863309583Sglebius			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
1864309583Sglebius			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00s
1865309583Sglebius			5:00 RussiaAsia	+05/+06	1994 Sep 25  2:00s
1866309583Sglebius			4:00 RussiaAsia	+04/+05	2004 Oct 31  2:00s
1867309583Sglebius			5:00	-	+05
1868325324Sgordon# Atyra�� (KZ-ATY) is like Mangghysta�� except it switched from
1869325324Sgordon# +04/+05 to +05/+06 in spring 1999, not fall 1994.
1870325324SgordonZone	Asia/Atyrau	3:27:44	-	LMT	1924 May  2
1871325324Sgordon			3:00	-	+03	1930 Jun 21
1872325324Sgordon			5:00	-	+05	1981 Oct  1
1873325324Sgordon			6:00	-	+06	1982 Apr  1
1874325324Sgordon			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
1875325324Sgordon			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00s
1876325324Sgordon			5:00 RussiaAsia	+05/+06	1999 Mar 28  2:00s
1877325324Sgordon			4:00 RussiaAsia	+04/+05	2004 Oct 31  2:00s
1878325324Sgordon			5:00	-	+05
1879309583Sglebius# West Kazakhstan (KZ-ZAP)
1880309583Sglebius# From Paul Eggert (2016-03-18):
1881309583Sglebius# The 1989 transition is from USSR act No. 227 (1989-03-14).
188293799SwollmanZone	Asia/Oral	3:25:24	-	LMT	1924 May  2 # or Ural'sk
1883325324Sgordon			3:00	-	+03	1930 Jun 21
1884309583Sglebius			5:00	-	+05	1981 Apr  1
1885309583Sglebius			5:00	1:00	+06	1981 Oct  1
1886309583Sglebius			6:00	-	+06	1982 Apr  1
1887309583Sglebius			5:00 RussiaAsia	+05/+06	1989 Mar 26  2:00s
1888309583Sglebius			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00s
1889309583Sglebius			5:00 RussiaAsia	+05/+06	1992 Mar 29  2:00s
1890309583Sglebius			4:00 RussiaAsia	+04/+05	2004 Oct 31  2:00s
1891309583Sglebius			5:00	-	+05
18922742Swollman
189367578Swollman# Kyrgyzstan (Kirgizstan)
1894158421Swollman# Transitions through 1991 are from Shanks & Pottenger.
1895149514Swollman
1896149514Swollman# From Paul Eggert (2005-08-15):
1897149514Swollman# According to an article dated today in the Kyrgyzstan Development Gateway
1898273718Sedwin# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml
1899149514Swollman# Kyrgyzstan is canceling the daylight saving time system.  I take the article
1900149514Swollman# to mean that they will leave their clocks at 6 hours ahead of UTC.
1901153670Swollman# From Malik Abdugaliev (2005-09-21):
1902153670Swollman# Our government cancels daylight saving time 6th of August 2005.
1903153670Swollman# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
1904149514Swollman
190520094Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1906153670SwollmanRule	Kyrgyz	1992	1996	-	Apr	Sun>=7	0:00s	1:00	S
1907153670SwollmanRule	Kyrgyz	1992	1996	-	Sep	lastSun	0:00	0	-
1908153670SwollmanRule	Kyrgyz	1997	2005	-	Mar	lastSun	2:30	1:00	S
1909153670SwollmanRule	Kyrgyz	1997	2004	-	Oct	lastSun	2:30	0	-
19109908Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
19119908SwollmanZone	Asia/Bishkek	4:58:24 -	LMT	1924 May  2
1912309583Sglebius			5:00	-	+05	1930 Jun 21
1913309583Sglebius			6:00 RussiaAsia +06/+07	1991 Mar 31  2:00s
1914309583Sglebius			5:00 RussiaAsia	+05/+06	1991 Aug 31  2:00
1915309583Sglebius			5:00	Kyrgyz	+05/+06	2005 Aug 12
1916309583Sglebius			6:00	-	+06
19179908Swollman
19182742Swollman###############################################################################
19192742Swollman
192043014Swollman# Korea (North and South)
19212742Swollman
1922273718Sedwin# From Annie I. Bang (2006-07-10):
1923274559Sedwin# http://www.koreaherald.com/view.php?ud=200607100012
1924274559Sedwin# Korea ran a daylight saving program from 1949-61 but stopped it
1925274559Sedwin# during the 1950-53 Korean War.  The system was temporarily enforced
1926274559Sedwin# between 1987 and 1988 ...
19272742Swollman
1928274559Sedwin# From Sanghyuk Jung (2014-10-29):
1929325324Sgordon# https://mm.icann.org/pipermail/tz/2014-October/021830.html
1930274559Sedwin# According to the Korean Wikipedia
1931325324Sgordon# https://ko.wikipedia.org/wiki/������_���������
1932274559Sedwin# [oldid=12896437 2014-09-04 08:03 UTC]
1933274559Sedwin# DST in Republic of Korea was as follows....  And I checked old
1934274559Sedwin# newspapers in Korean, all articles correspond with data in Wikipedia.
1935274559Sedwin# For example, the article in 1948 (Korean Language) proved that DST
1936274559Sedwin# started at June 1 in that year.  For another example, the article in
1937274559Sedwin# 1988 said that DST started at 2:00 AM in that year.
1938274559Sedwin
19392742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
1940274559SedwinRule	ROK	1948	only	-	Jun	 1	0:00	1:00	D
1941274559SedwinRule	ROK	1948	only	-	Sep	13	0:00	0	S
1942274559SedwinRule	ROK	1949	only	-	Apr	 3	0:00	1:00	D
1943274559SedwinRule	ROK	1949	1951	-	Sep	Sun>=8	0:00	0	S
1944274559SedwinRule	ROK	1950	only	-	Apr	 1	0:00	1:00	D
1945274559SedwinRule	ROK	1951	only	-	May	 6	0:00	1:00	D
1946274559SedwinRule	ROK	1955	only	-	May	 5	0:00	1:00	D
1947274559SedwinRule	ROK	1955	only	-	Sep	 9	0:00	0	S
1948274559SedwinRule	ROK	1956	only	-	May	20	0:00	1:00	D
1949274559SedwinRule	ROK	1956	only	-	Sep	30	0:00	0	S
1950274559SedwinRule	ROK	1957	1960	-	May	Sun>=1	0:00	1:00	D
1951274559SedwinRule	ROK	1957	1960	-	Sep	Sun>=18	0:00	0	S
1952274559SedwinRule	ROK	1987	1988	-	May	Sun>=8	2:00	1:00	D
1953274559SedwinRule	ROK	1987	1988	-	Oct	Sun>=8	3:00	0	S
19542742Swollman
1955309583Sglebius# From Paul Eggert (2016-08-23):
1956274559Sedwin# The Korean Wikipedia entry gives the following sources for UT offsets:
1957274559Sedwin#
1958309583Sglebius# 1908: Official Journal Article No. 3994 (decree No. 5)
1959274559Sedwin# 1912: Governor-General of Korea Official Gazette Issue No. 367
1960274559Sedwin#       (Announcement No. 338)
1961274559Sedwin# 1954: Presidential Decree No. 876 (1954-03-17)
1962274559Sedwin# 1961: Law No. 676 (1961-08-07)
1963274559Sedwin#
1964309583Sglebius# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
1965309583Sglebius# edition of the Korean Wikipedia entry.)
1966274559Sedwin#
1967274559Sedwin# I guessed that time zone abbreviations through 1945 followed the same
1968270728Spluknet# rules as discussed under Taiwan, with nominal switches from JST to KST
1969270728Spluknet# when the respective cities were taken over by the Allies after WWII.
1970274559Sedwin#
1971309583Sglebius# For Pyongyang, guess no changes from World War II until 2015, as we
1972309583Sglebius# have no information otherwise.
1973270728Spluknet
1974286750Sedwin# From Steffen Thorsen (2015-08-07):
1975286750Sedwin# According to many news sources, North Korea is going to change to
1976286750Sedwin# the 8:30 time zone on August 15, one example:
1977286750Sedwin# http://www.bbc.com/news/world-asia-33815049
1978286750Sedwin#
1979290697Sedwin# From Paul Eggert (2015-08-15):
1980290697Sedwin# Bells rang out midnight (00:00) Friday as part of the celebrations.  See:
1981290697Sedwin# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time'
1982290697Sedwin# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html
1983286750Sedwin# There is no common English-language abbreviation for this time zone.
1984290697Sedwin# Use KST, as that's what we already use for 1954-1961 in ROK.
1985286750Sedwin
19862742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
1987274559SedwinZone	Asia/Seoul	8:27:52	-	LMT	1908 Apr  1
1988274559Sedwin			8:30	-	KST	1912 Jan  1
1989270728Spluknet			9:00	-	JST	1945 Sep  8
19902742Swollman			9:00	-	KST	1954 Mar 21
1991274559Sedwin			8:30	ROK	K%sT	1961 Aug 10
19922742Swollman			9:00	ROK	K%sT
1993274559SedwinZone	Asia/Pyongyang	8:23:00 -	LMT	1908 Apr  1
1994274559Sedwin			8:30	-	KST	1912 Jan  1
1995270728Spluknet			9:00	-	JST	1945 Aug 24
1996290697Sedwin			9:00	-	KST	2015 Aug 15 00:00
1997286750Sedwin			8:30	-	KST
19982742Swollman
19992742Swollman###############################################################################
20002742Swollman
20012742Swollman# Kuwait
2002279706Sedwin# See Asia/Riyadh.
20032742Swollman
20042742Swollman# Laos
2005273718Sedwin# See Asia/Bangkok.
20062742Swollman
2007273718Sedwin
20082742Swollman# Lebanon
20092742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
201019878SwollmanRule	Lebanon	1920	only	-	Mar	28	0:00	1:00	S
20112742SwollmanRule	Lebanon	1920	only	-	Oct	25	0:00	0	-
201219878SwollmanRule	Lebanon	1921	only	-	Apr	3	0:00	1:00	S
20132742SwollmanRule	Lebanon	1921	only	-	Oct	3	0:00	0	-
201419878SwollmanRule	Lebanon	1922	only	-	Mar	26	0:00	1:00	S
20152742SwollmanRule	Lebanon	1922	only	-	Oct	8	0:00	0	-
201619878SwollmanRule	Lebanon	1923	only	-	Apr	22	0:00	1:00	S
20172742SwollmanRule	Lebanon	1923	only	-	Sep	16	0:00	0	-
201819878SwollmanRule	Lebanon	1957	1961	-	May	1	0:00	1:00	S
20192742SwollmanRule	Lebanon	1957	1961	-	Oct	1	0:00	0	-
202019878SwollmanRule	Lebanon	1972	only	-	Jun	22	0:00	1:00	S
20212742SwollmanRule	Lebanon	1972	1977	-	Oct	1	0:00	0	-
202219878SwollmanRule	Lebanon	1973	1977	-	May	1	0:00	1:00	S
202319878SwollmanRule	Lebanon	1978	only	-	Apr	30	0:00	1:00	S
20242742SwollmanRule	Lebanon	1978	only	-	Sep	30	0:00	0	-
202519878SwollmanRule	Lebanon	1984	1987	-	May	1	0:00	1:00	S
202620094SwollmanRule	Lebanon	1984	1991	-	Oct	16	0:00	0	-
202719878SwollmanRule	Lebanon	1988	only	-	Jun	1	0:00	1:00	S
202819878SwollmanRule	Lebanon	1989	only	-	May	10	0:00	1:00	S
202920094SwollmanRule	Lebanon	1990	1992	-	May	1	0:00	1:00	S
203020094SwollmanRule	Lebanon	1992	only	-	Oct	4	0:00	0	-
203120094SwollmanRule	Lebanon	1993	max	-	Mar	lastSun	0:00	1:00	S
203258787SruRule	Lebanon	1993	1998	-	Sep	lastSun	0:00	0	-
203358787SruRule	Lebanon	1999	max	-	Oct	lastSun	0:00	0	-
20342742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
20352742SwollmanZone	Asia/Beirut	2:22:00 -	LMT	1880
203619878Swollman			2:00	Lebanon	EE%sT
20372742Swollman
20382742Swollman# Malaysia
203919878Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
204086222SwollmanRule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	TS # one-Third Summer
204119878SwollmanRule	NBorneo	1935	1941	-	Dec	14	0:00	0	-
204286222Swollman#
2043136638Swollman# peninsular Malaysia
2044273718Sedwin# taken from Mok Ly Yng (2003-10-30)
2045273718Sedwin# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
20462742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2047136638SwollmanZone Asia/Kuala_Lumpur	6:46:46 -	LMT	1901 Jan  1
2048136638Swollman			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
2049325324Sgordon			7:00	-	+07	1933 Jan  1
2050325324Sgordon			7:00	0:20	+0720	1936 Jan  1
2051325324Sgordon			7:20	-	+0720	1941 Sep  1
2052325324Sgordon			7:30	-	+0730	1942 Feb 16
2053325324Sgordon			9:00	-	+09	1945 Sep 12
2054325324Sgordon			7:30	-	+0730	1982 Jan  1
2055325324Sgordon			8:00	-	+08
205686222Swollman# Sabah & Sarawak
2057273718Sedwin# From Paul Eggert (2014-08-12):
2058273718Sedwin# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
2059273718Sedwin# and 1982 transition dates are from Mok Ly Yng.
2060136638Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
206119878SwollmanZone Asia/Kuching	7:21:20	-	LMT	1926 Mar
2062325324Sgordon			7:30	-	+0730	1933
2063325324Sgordon			8:00 NBorneo  +08/+0820	1942 Feb 16
2064325324Sgordon			9:00	-	+09	1945 Sep 12
2065325324Sgordon			8:00	-	+08
20662742Swollman
20672742Swollman# Maldives
20682742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2069273718SedwinZone	Indian/Maldives	4:54:00 -	LMT	1880 # Male
2070273718Sedwin			4:54:00	-	MMT	1960 # Male Mean Time
2071325324Sgordon			5:00	-	+05
20722742Swollman
20732742Swollman# Mongolia
207458787Sru
2075158421Swollman# Shanks & Pottenger say that Mongolia has three time zones, but
2076270728Spluknet# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World
2077270728Spluknet# (2005-03) both say that it has just one.
207858787Sru
207958787Sru# From Oscar van Vlijmen (1999-12-11):
208058787Sru# General Information Mongolia
2081270728Spluknet# <http://www.mongoliatourism.gov.mn/general.htm> (1999-09)
208258787Sru# "Time: Mongolia has two time zones. Three westernmost provinces of
2083270728Spluknet# Bayan-��lgii, Uvs, and Hovd are one hour earlier than the capital city, and
208458787Sru# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
208558787Sru# eight hours."
208658787Sru
208758787Sru# From Rives McDow (1999-12-13):
208858787Sru# Mongolia discontinued the use of daylight savings time in 1999; 1998
208958787Sru# being the last year it was implemented.  The dates of implementation I am
209058787Sru# unsure of, but most probably it was similar to Russia, except for the time
209158787Sru# of implementation may have been different....
209258787Sru# Some maps in the past have indicated that there was an additional time
209358787Sru# zone in the eastern part of Mongolia, including the provinces of Dornod,
2094270728Spluknet# S��khbaatar, and possibly Khentii.
209558787Sru
209658787Sru# From Paul Eggert (1999-12-15):
209758787Sru# Naming and spelling is tricky in Mongolia.
209858787Sru# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
209958787Sru# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
210058787Sru# and sometimes Jirgalanta (with variant spellings), but the name Hovd
210158787Sru# is good enough for our purposes.
210258787Sru
210386222Swollman# From Rives McDow (2001-05-13):
210486222Swollman# In addition to Mongolia starting daylight savings as reported earlier
210586222Swollman# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
210686222Swollman# there are three time zones.
210786222Swollman#
2108270728Spluknet# Provinces [at 7:00]: Bayan-��lgii, Uvs, Khovd, Zavkhan, Govi-Altai
2109270728Spluknet# Provinces [at 8:00]: Kh��vsg��l, Bulgan, Arkhangai, Khentii, T��v,
2110270728Spluknet#	Bayankhongor, ��v��rkhangai, Dundgovi, Dornogovi, ��mn��govi
2111270728Spluknet# Provinces [at 9:00]: Dornod, S��khbaatar
211286222Swollman#
211386222Swollman# [The province of Selenge is omitted from the above lists.]
211486222Swollman
2115149514Swollman# From Ganbold Ts., Ulaanbaatar (2004-04-17):
2116136638Swollman# Daylight saving occurs at 02:00 local time last Saturday of March.
2117136638Swollman# It will change back to normal at 02:00 local time last Saturday of
2118136638Swollman# September.... As I remember this rule was changed in 2001.
2119136638Swollman#
2120136638Swollman# From Paul Eggert (2004-04-17):
2121136638Swollman# For now, assume Rives McDow's informant got confused about Friday vs
2122136638Swollman# Saturday, and that his 2001 dates should have 1 added to them.
2123136638Swollman
2124149514Swollman# From Paul Eggert (2005-07-26):
2125149514Swollman# We have wildly conflicting information about Mongolia's time zones.
2126149514Swollman# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
2127149514Swollman# there is only one time zone and that DST is observed, citing Microsoft
2128270728Spluknet# Windows XP as the source.  Risto Nyk��nen (2005-05-16) reports that
2129309583Sglebius# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
2130149514Swollman# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
2131149514Swollman# Washington, DC says there are two time zones, with DST observed.
2132149514Swollman# He also found
2133273718Sedwin# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&
2134149514Swollman# which also says that there is DST, and which has a comment by "Toddius"
2135149514Swollman# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
2136149514Swollman# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
2137270728Spluknet# and some Eastern provinces are +9 GMT but S��khbaatar Aimag is SUHK +8.5 GMT.
2138149514Swollman# The SUKH timezone is new this year, it is one of the few things the
2139149514Swollman# parliament passed during the tumultuous winter session."
2140149514Swollman# For now, let's ignore this information, until we have more confirmation.
2141149514Swollman
2142169811Swollman# From Ganbold Ts. (2007-02-26):
2143169811Swollman# Parliament of Mongolia has just changed the daylight-saving rule in February.
2144169811Swollman# They decided not to adopt daylight-saving time....
2145169811Swollman# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
2146169811Swollman
2147181418Sedwin# From Deborah Goldsmith (2008-03-30):
2148181418Sedwin# We received a bug report claiming that the tz database UTC offset for
2149181418Sedwin# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
2150181418Sedwin# +08:00 instead. Different sources appear to disagree with the tz
2151181418Sedwin# database on this, e.g.:
2152181418Sedwin#
2153325324Sgordon# https://www.timeanddate.com/worldclock/city.html?n=1026
2154181418Sedwin# http://www.worldtimeserver.com/current_time_in_MN.aspx
2155181418Sedwin#
2156181418Sedwin# both say GMT+08:00.
2157181418Sedwin
2158181418Sedwin# From Steffen Thorsen (2008-03-31):
2159181418Sedwin# eznis airways, which operates several domestic flights, has a flight
2160181418Sedwin# schedule here:
2161181418Sedwin# http://www.eznis.com/Container.jsp?id=112
2162181418Sedwin# (click the English flag for English)
2163181418Sedwin#
2164270728Spluknet# There it appears that flights between Choibalsan and Ulaanbaatar arrive
2165181418Sedwin# about 1:35 - 1:50 hours later in local clock time, no matter the
2166270728Spluknet# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern
2167270728Spluknet# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are
2168181418Sedwin# in different time zones (like we know about), while Choibalsan and
2169270728Spluknet# Ulaanbaatar are in the same time zone (correction needed).
2170181418Sedwin
2171181418Sedwin# From Arthur David Olson (2008-05-19):
2172181418Sedwin# Assume that Choibalsan is indeed offset by 8:00.
2173181418Sedwin# XXX--in the absence of better information, assume that transition
2174181418Sedwin# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
2175181418Sedwin# this is almost surely wrong.
2176181418Sedwin
2177280413Sedwin# From Ganbold Tsagaankhuu (2015-03-10):
2178280413Sedwin# It seems like yesterday Mongolian Government meeting has concluded to use
2179280413Sedwin# daylight saving time in Mongolia....  Starting at 2:00AM of last Saturday of
2180280413Sedwin# March 2015, daylight saving time starts.  And 00:00AM of last Saturday of
2181280413Sedwin# September daylight saving time ends.  Source:
2182280413Sedwin# http://zasag.mn/news/view/8969
2183280413Sedwin
21842742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
218586222SwollmanRule	Mongol	1983	1984	-	Apr	1	0:00	1:00	S
218686222SwollmanRule	Mongol	1983	only	-	Oct	1	0:00	0	-
2187158421Swollman# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
2188158421Swollman# but McDow says the 2001 switches occurred at 02:00.  Also, IATA SSIM
2189158421Swollman# (1996-09) says 1996-10-25.  Go with Shanks & Pottenger through 1998.
2190158421Swollman#
2191158421Swollman# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
2192270728Spluknet# in Choibalsan (more precisely, in Dornod and S��khbaatar) took place
2193158421Swollman# at 02:00 standard time, not at 00:00 local time as in the rest of
2194158421Swollman# the country.  That would be odd, and possibly is a result of their
2195158421Swollman# correction of 02:00 (in the previous edition) not being done correctly
2196158421Swollman# in the latest edition; so ignore it for now.
2197158421Swollman
2198325324Sgordon# From Ganbold Tsagaankhuu (2017-02-09):
2199325324Sgordon# Mongolian Government meeting has concluded today to cancel daylight
2200325324Sgordon# saving time adoption in Mongolia.  Source: http://zasag.mn/news/view/16192
2201325324Sgordon
2202158421SwollmanRule	Mongol	1985	1998	-	Mar	lastSun	0:00	1:00	S
2203158421SwollmanRule	Mongol	1984	1998	-	Sep	lastSun	0:00	0	-
220458787Sru# IATA SSIM (1999-09) says Mongolia no longer observes DST.
2205136638SwollmanRule	Mongol	2001	only	-	Apr	lastSat	2:00	1:00	S
2206169811SwollmanRule	Mongol	2001	2006	-	Sep	lastSat	2:00	0	-
2207169811SwollmanRule	Mongol	2002	2006	-	Mar	lastSat	2:00	1:00	S
2208325324SgordonRule	Mongol	2015	2016	-	Mar	lastSat	2:00	1:00	S
2209325324SgordonRule	Mongol	2015	2016	-	Sep	lastSat	0:00	0	-
221058787Sru
22112742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
221286222Swollman# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
221358787SruZone	Asia/Hovd	6:06:36 -	LMT	1905 Aug
2214325324Sgordon			6:00	-	+06	1978
2215325324Sgordon			7:00	Mongol	+07/+08
221686222Swollman# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
221758787SruZone	Asia/Ulaanbaatar 7:07:32 -	LMT	1905 Aug
2218325324Sgordon			7:00	-	+07	1978
2219325324Sgordon			8:00	Mongol	+08/+09
2220273718Sedwin# Choibalsan, a.k.a. Bajan T��men, Bajan Tumen, Chojbalsan,
222186222Swollman# Choybalsan, Sanbejse, Tchoibalsan
222286222SwollmanZone	Asia/Choibalsan	7:38:00 -	LMT	1905 Aug
2223325324Sgordon			7:00	-	+07	1978
2224325324Sgordon			8:00	-	+08	1983 Apr
2225325324Sgordon			9:00	Mongol	+09/+10	2008 Mar 31
2226325324Sgordon			8:00	Mongol	+08/+09
22272742Swollman
22282742Swollman# Nepal
22292742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2230187588SedwinZone	Asia/Kathmandu	5:41:16 -	LMT	1920
2231325324Sgordon			5:30	-	+0530	1986
2232325324Sgordon			5:45	-	+0545
22332742Swollman
22342742Swollman# Oman
2235279706Sedwin# See Asia/Dubai.
2236248307Sedwin
22372742Swollman# Pakistan
223893799Swollman
223993799Swollman# From Rives McDow (2002-03-13):
224093799Swollman# I have been advised that Pakistan has decided to adopt dst on a
224193799Swollman# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
224293799Swollman# and ending at 00:01 local time October 6, 2002.  This is what I was
224393799Swollman# told, but I believe that the actual time of change may be 00:00; the
224493799Swollman# 00:01 was to make it clear which day it was on.
224593799Swollman
224693799Swollman# From Paul Eggert (2002-03-15):
2247270728Spluknet# Jesper N��rgaard found this URL:
224893799Swollman# http://www.pak.gov.pk/public/news/app/app06_dec.htm
224993799Swollman# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
225093799Swollman# advance the clocks by one hour on the night between the first
225193799Swollman# Saturday and Sunday of April and revert to the original position on
225293799Swollman# 15th October each year".  This agrees with McDow's 04-07 at 00:00,
225393799Swollman# but disagrees about the October transition, and makes it sound like
225493799Swollman# it's not on a trial basis.  Also, the "between the first Saturday
225593799Swollman# and Sunday of April" phrase, if taken literally, means that the
225693799Swollman# transition takes place at 00:00 on the first Sunday on or after 04-02.
225793799Swollman
2258114173Swollman# From Paul Eggert (2003-02-09):
2259114173Swollman# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05
2260114173Swollman# that 2002 DST ended that day at midnight.  Go with McDow for now.
2261114173Swollman
2262114173Swollman# From Steffen Thorsen (2003-03-14):
2263114173Swollman# According to http://www.dawn.com/2003/03/07/top15.htm
2264114173Swollman# there will be no DST in Pakistan this year:
2265114173Swollman#
2266114173Swollman# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
2267114173Swollman# Rashid Ahmed on Thursday said the cabinet had reversed a previous
2268114173Swollman# decision to advance clocks by one hour in summer and put them back by
2269114173Swollman# one hour in winter with the aim of saving light hours and energy.
2270114173Swollman#
2271114173Swollman# The minister told a news conference that the experiment had rather
2272114173Swollman# shown 8 per cent higher consumption of electricity.
2273114173Swollman
2274181418Sedwin# From Alex Krivenyshev (2008-05-15):
2275240457Sedwin#
2276240457Sedwin# Here is an article that Pakistan plan to introduce Daylight Saving Time
2277181418Sedwin# on June 1, 2008 for 3 months.
2278240457Sedwin#
2279273718Sedwin# "... The federal cabinet on Wednesday announced a new conservation plan to
2280273718Sedwin# help reduce load shedding by approving the closure of commercial centres at
2281273718Sedwin# 9pm and moving clocks forward by one hour for the next three months. ...."
2282240457Sedwin#
2283325324Sgordon# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
2284181418Sedwin# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
2285114173Swollman
2286181418Sedwin# From Arthur David Olson (2008-05-19):
2287181418Sedwin# XXX--midnight transitions is a guess; 2008 only is a guess.
2288181418Sedwin
2289183066Sedwin# From Alexander Krivenyshev (2008-08-28):
2290183066Sedwin# Pakistan government has decided to keep the watches one-hour advanced
2291270728Spluknet# for another 2 months - plan to return to Standard Time on October 31
2292183066Sedwin# instead of August 31.
2293183066Sedwin#
2294183066Sedwin# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html
2295183066Sedwin# http://dailymailnews.com/200808/28/news/dmbrn03.html
2296183066Sedwin
2297191052Sedwin# From Alexander Krivenyshev (2009-04-08):
2298191052Sedwin# Based on previous media reports that "... proposed plan to
2299191052Sedwin# advance clocks by one hour from May 1 will cause disturbance
2300191052Sedwin# to the working schedules rather than bringing discipline in
2301191052Sedwin# official working."
2302191052Sedwin# http://www.thenews.com.pk/daily_detail.asp?id=171280
2303191052Sedwin#
2304191052Sedwin# recent news that instead of May 2009 - Pakistan plan to
2305191052Sedwin# introduce DST from April 15, 2009
2306191052Sedwin#
2307191052Sedwin# FYI: Associated Press Of Pakistan
2308191052Sedwin# April 08, 2009
2309191052Sedwin# Cabinet okays proposal to advance clocks by one hour from April 15
2310191052Sedwin# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1
2311191052Sedwin# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html
2312191052Sedwin#
2313191052Sedwin# ....
2314191052Sedwin# The Federal Cabinet on Wednesday approved the proposal to
2315191052Sedwin# advance clocks in the country by one hour from April 15 to
2316191052Sedwin# conserve energy"
2317191052Sedwin
2318197597Sedwin# From Steffen Thorsen (2009-09-17):
2319197597Sedwin# "The News International," Pakistan reports that: "The Federal
2320197597Sedwin# Government has decided to restore the previous time by moving the
2321197597Sedwin# clocks backward by one hour from October 1. A formal announcement to
2322197597Sedwin# this effect will be made after the Prime Minister grants approval in
2323240457Sedwin# this regard."
2324197597Sedwin# http://www.thenews.com.pk/updates.asp?id=87168
2325191052Sedwin
2326198270Sedwin# From Alexander Krivenyshev (2009-09-28):
2327198270Sedwin# According to Associated Press Of Pakistan, it is confirmed that
2328273718Sedwin# Pakistan clocks across the country would be turned back by an hour from
2329273718Sedwin# October 1, 2009.
2330198270Sedwin#
2331198270Sedwin# "Clocks to go back one hour from 1 Oct"
2332198270Sedwin# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2
2333198270Sedwin# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm
2334273718Sedwin#
2335198270Sedwin# From Steffen Thorsen (2009-09-29):
2336198270Sedwin# Now they seem to have changed their mind, November 1 is the new date:
2337198270Sedwin# http://www.thenews.com.pk/top_story_detail.asp?Id=24742
2338198270Sedwin# "The country's clocks will be reversed by one hour on November 1.
2339198270Sedwin# Officials of Federal Ministry for Interior told this to Geo News on
2340198270Sedwin# Monday."
2341198270Sedwin#
2342198270Sedwin# And more importantly, it seems that these dates will be kept every year:
2343198270Sedwin# "It has now been decided that clocks will be wound forward by one hour
2344198270Sedwin# on April 15 and reversed by an hour on November 1 every year without
2345198270Sedwin# obtaining prior approval, the officials added."
2346198270Sedwin#
2347198270Sedwin# We have confirmed this year's end date with both with the Ministry of
2348198270Sedwin# Water and Power and the Pakistan Electric Power Company:
2349325324Sgordon# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
2350198270Sedwin
2351270728Spluknet# From Christoph G��hre (2009-10-01):
2352198270Sedwin# [T]he German Consulate General in Karachi reported me today that Pakistan
2353198270Sedwin# will go back to standard time on 1st of November.
2354198270Sedwin
2355206868Sedwin# From Steffen Thorsen (2010-03-26):
2356206868Sedwin# Steffen Thorsen wrote:
2357206868Sedwin# > On Thursday (2010-03-25) it was announced that DST would start in
2358206868Sedwin# > Pakistan on 2010-04-01.
2359206868Sedwin# >
2360206868Sedwin# > Then today, the president said that they might have to revert the
2361206868Sedwin# > decision if it is not supported by the parliament. So at the time
2362206868Sedwin# > being, it seems unclear if DST will be actually observed or not - but
2363206868Sedwin# > April 1 could be a more likely date than April 15.
2364206868Sedwin# Now, it seems that the decision to not observe DST in final:
2365206868Sedwin#
2366206868Sedwin# "Govt Withdraws Plan To Advance Clocks"
2367206868Sedwin# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041
2368206868Sedwin#
2369206868Sedwin# "People laud PM's announcement to end DST"
2370206868Sedwin# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
2371206868Sedwin
237293799Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
2373309583SglebiusRule Pakistan	2002	only	-	Apr	Sun>=2	0:00	1:00	S
2374309583SglebiusRule Pakistan	2002	only	-	Oct	Sun>=2	0:00	0	-
2375181418SedwinRule Pakistan	2008	only	-	Jun	1	0:00	1:00	S
2376273718SedwinRule Pakistan	2008	2009	-	Nov	1	0:00	0	-
2377206868SedwinRule Pakistan	2009	only	-	Apr	15	0:00	1:00	S
2378206868Sedwin
23792742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
23802742SwollmanZone	Asia/Karachi	4:28:12 -	LMT	1907
2381325324Sgordon			5:30	-	+0530	1942 Sep
2382325324Sgordon			5:30	1:00	+0630	1945 Oct 15
2383325324Sgordon			5:30	-	+0530	1951 Sep 30
2384325324Sgordon			5:00	-	+05	1971 Mar 26
238593799Swollman			5:00 Pakistan	PK%sT	# Pakistan Time
23862742Swollman
23872742Swollman# Palestine
238843014Swollman
2389149514Swollman# From Amos Shapir (1998-02-15):
239043014Swollman#
239143014Swollman# From 1917 until 1948-05-15, all of Palestine, including the parts now
239243014Swollman# known as the Gaza Strip and the West Bank, was under British rule.
239343014Swollman# Therefore the rules given for Israel for that period, apply there too...
239443014Swollman#
239543014Swollman# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
239643014Swollman# (except a short occupation by Israel from 1956-11 till 1957-03, but no
239743014Swollman# time zone was affected then).  It was never formally annexed to Egypt,
239843014Swollman# though.
239943014Swollman#
240043014Swollman# The rest of Palestine was under Jordanian rule at that time, formally
240143014Swollman# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
240243014Swollman# the country's previous name of "the Hashemite Kingdom of the
240343014Swollman# Trans-Jordan").  So the rules for Jordan for that time apply.  Major
240443014Swollman# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
240543014Swollman# East Jerusalem.
240643014Swollman#
240743014Swollman# Both areas were occupied by Israel in June 1967, but not annexed (except
240843014Swollman# for East Jerusalem).  They were on Israel time since then; there might
240943014Swollman# have been a Military Governor's order about time zones, but I'm not aware
241043014Swollman# of any (such orders may have been issued semi-annually whenever summer
241143014Swollman# time was in effect, but maybe the legal aspect of time was just neglected).
241243014Swollman#
241343014Swollman# The Palestinian Authority was established in 1993, and got hold of most
241443014Swollman# towns in the West Bank and Gaza by 1995.  I know that in order to
241543014Swollman# demonstrate...independence, they have been switching to
241643014Swollman# summer time and back on a different schedule than Israel's, but I don't
241743014Swollman# know when this was started, or what algorithm is used (most likely the
241843014Swollman# Jordanian one).
241943014Swollman#
242043014Swollman# To summarize, the table should probably look something like that:
242143014Swollman#
242243014Swollman# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
242343014Swollman# ------------+-----------+-----------+-----------+-----------
242443014Swollman# Israel      | Zion      | Zion      | Zion      | Zion
242543014Swollman# West bank   | Zion      | Jordan    | Zion      | Jordan
242643014Swollman# Gaza        | Zion      | Egypt     | Zion      | Jordan
242743014Swollman#
242843014Swollman# I guess more info may be available from the PA's web page (if/when they
242943014Swollman# have one).
243043014Swollman
2431158421Swollman# From Paul Eggert (2006-03-22):
2432158421Swollman# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
243343014Swollman# with Shapir and assume that it observed DST from 1940 through 1947,
243443014Swollman# and that it used Jordanian rules starting in 1996.
243543014Swollman# We don't yet need a separate entry for the West Bank, since
243643014Swollman# the only differences between it and Gaza that we know about
243743014Swollman# occurred before our cutoff date of 1970.
243843014Swollman# However, as we get more information, we may need to add entries
243943014Swollman# for parts of the West Bank as they transitioned from Israel's rules
2440243003Sedwin# to Palestine's rules.
244143014Swollman
244243014Swollman# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
244343014Swollman# forwarded by Ephraim Silverberg:
244443014Swollman#
244543014Swollman# Despite the fact that Israel changed over to daylight savings time
244643014Swollman# last week, the PLO Authority (PA) has decided not to turn its clocks
244743014Swollman# one-hour forward at this time.  As a sign of independence from Israeli rule,
244843014Swollman# the PA has decided to implement DST in April.
244943014Swollman
245058787Sru# From Paul Eggert (1999-09-20):
2451270728Spluknet# Daoud Kuttab writes in Holiday havoc
2452273718Sedwin# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html
2453270728Spluknet# (Jerusalem Post, 1999-04-22) that
245458787Sru# the Palestinian National Authority changed to DST on 1999-04-15.
245558787Sru# I vaguely recall that they switch back in October (sorry, forgot the source).
245658787Sru# For now, let's assume that the spring switch was at 24:00,
245758787Sru# and that they switch at 0:00 on the 3rd Fridays of April and October.
245858787Sru
2459153670Swollman# From Paul Eggert (2005-11-22):
2460153670Swollman# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
2461153670Swollman
2462158421Swollman# From Steffen Thorsen (2005-11-23):
2463158421Swollman# A user from Gaza reported that Gaza made the change early because of
2464158421Swollman# the Ramadan.  Next year Ramadan will be even earlier, so I think
2465158421Swollman# there is a good chance next year's end date will be around two weeks
2466270728Spluknet# earlier - the same goes for Jordan.
2467158421Swollman
2468163302Sru# From Steffen Thorsen (2006-08-17):
2469163302Sru# I was informed by a user in Bethlehem that in Bethlehem it started the
2470163302Sru# same day as Israel, and after checking with other users in the area, I
2471163302Sru# was informed that they started DST one day after Israel.  I was not
2472163302Sru# able to find any authoritative sources at the time, nor details if
2473163302Sru# Gaza changed as well, but presumed Gaza to follow the same rules as
2474163302Sru# the West Bank.
2475163302Sru
2476163302Sru# From Steffen Thorsen (2006-09-26):
2477163302Sru# according to the Palestine News Network (2006-09-19):
2478163302Sru# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
2479163302Sru# > The Council of Ministers announced that this year its winter schedule
2480163302Sru# > will begin early, as of midnight Thursday.  It is also time to turn
2481163302Sru# > back the clocks for winter.  Friday will begin an hour late this week.
2482163302Sru# I guess it is likely that next year's date will be moved as well,
2483163302Sru# because of the Ramadan.
2484163302Sru
2485270728Spluknet# From Jesper N��rgaard Welen (2007-09-18):
2486172479Sedwin# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
2487172479Sedwin# Palestinian territories left DST early on 13.th. of September at 2:00.
2488172479Sedwin
2489172479Sedwin# From Paul Eggert (2007-09-20):
2490172479Sedwin# My understanding is that Gaza and the West Bank disagree even over when
2491172479Sedwin# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
2492172479Sedwin# surprised if they agreed about DST.  But for now, assume they agree.
2493172479Sedwin# For lack of better information, predict that future changes will be
2494172479Sedwin# the 2nd Thursday of September at 02:00.
2495172479Sedwin
2496183066Sedwin# From Alexander Krivenyshev (2008-08-28):
2497183066Sedwin# Here is an article, that Mideast running on different clocks at Ramadan.
2498183066Sedwin#
2499183066Sedwin# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while
2500183066Sedwin# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008).
2501183066Sedwin#
2502183066Sedwin# http://www.guardian.co.uk/world/feedarticle/7759001
2503183066Sedwin# http://www.abcnews.go.com/International/wireStory?id=5676087
2504183066Sedwin# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html
2505183066Sedwin
2506190991Sedwin# From Alexander Krivenyshev (2009-03-26):
2507190991Sedwin# According to the Palestine News Network (arabic.pnn.ps), Palestinian
2508190991Sedwin# government decided to start Daylight Time on Thursday night March
2509190991Sedwin# 26 and continue until the night of 27 September 2009.
2510190991Sedwin#
2511190991Sedwin# (in Arabic)
2512190991Sedwin# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850
2513190991Sedwin#
2514190991Sedwin# (English translation)
2515190991Sedwin# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html
2516190991Sedwin
2517197000Sedwin# From Steffen Thorsen (2009-08-31):
2518197000Sedwin# Palestine's Council of Ministers announced that they will revert back to
2519197000Sedwin# winter time on Friday, 2009-09-04.
2520197000Sedwin#
2521197000Sedwin# One news source:
2522197000Sedwin# http://www.safa.ps/ara/?action=showdetail&seid=4158
2523197000Sedwin# (Palestinian press agency, Arabic),
2524197000Sedwin# Google translate: "Decided that the Palestinian government in Ramallah
2525197000Sedwin# headed by Salam Fayyad, the start of work in time for the winter of
2526197000Sedwin# 2009, starting on Friday approved the fourth delay Sept. clock sixty
2527197000Sedwin# minutes per hour as of Friday morning."
2528197000Sedwin#
2529197000Sedwin# We are not sure if Gaza will do the same, last year they had a different
2530197000Sedwin# end date, we will keep this page updated:
2531325324Sgordon# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
2532197000Sedwin
2533197000Sedwin# From Alexander Krivenyshev (2009-09-02):
2534197000Sedwin# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
2535197000Sedwin#
2536197000Sedwin# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan
2537197000Sedwin# to change time back to Standard time on September 4, 2009.
2538197000Sedwin#
2539197000Sedwin# "Winter time unite the West Bank and Gaza"
2540197000Sedwin# (from Palestinian National Authority):
2541197000Sedwin# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
2542197000Sedwin# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html
2543197000Sedwin
2544206219Sedwin# From Alexander Krivenyshev (2010-03-19):
2545206219Sedwin# According to Voice of Palestine DST will last for 191 days, from March
2546206219Sedwin# 26, 2010 till "the last Sunday before the tenth day of Tishri
2547206219Sedwin# (October), each year" (October 03, 2010?)
2548206219Sedwin#
2549206219Sedwin# http://palvoice.org/forums/showthread.php?t=245697
2550206219Sedwin# (in Arabic)
2551206219Sedwin# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html
2552206219Sedwin
2553206219Sedwin# From Steffen Thorsen (2010-03-24):
2554206219Sedwin# ...Ma'an News Agency reports that Hamas cabinet has decided it will
2555206219Sedwin# start one day later, at 12:01am. Not sure if they really mean 12:01am or
2556206219Sedwin# noon though:
2557206219Sedwin#
2558206219Sedwin# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178
2559206219Sedwin# (Ma'an News Agency)
2560206219Sedwin# "At 12:01am Friday, clocks in Israel and the West Bank will change to
2561206219Sedwin# 1:01am, while Gaza clocks will change at 12:01am Saturday morning."
2562206219Sedwin
2563211422Sedwin# From Steffen Thorsen (2010-08-11):
2564211422Sedwin# According to several sources, including
2565211422Sedwin# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795
2566240457Sedwin# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
2567211422Sedwin# Gaza and the West Bank.
2568211422Sedwin# Some more background info:
2569325324Sgordon# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
2570211422Sedwin
2571226289Sedwin# From Steffen Thorsen (2011-08-26):
2572226289Sedwin# Gaza and the West Bank did go back to standard time in the beginning of
2573226289Sedwin# August, and will now enter daylight saving time again on 2011-08-30
2574226289Sedwin# 00:00 (so two periods of DST in 2011). The pause was because of
2575226289Sedwin# Ramadan.
2576226289Sedwin#
2577226289Sedwin# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217
2578226289Sedwin# Additional info:
2579325324Sgordon# https://www.timeanddate.com/news/time/palestine-dst-2011.html
2580226289Sedwin
2581226289Sedwin# From Alexander Krivenyshev (2011-08-27):
2582226289Sedwin# According to the article in The Jerusalem Post:
2583226289Sedwin# "...Earlier this month, the Palestinian government in the West Bank decided to
2584226289Sedwin# move to standard time for 30 days, during Ramadan. The Palestinians in the
2585226289Sedwin# Gaza Strip accepted the change and also moved their clocks one hour back.
2586226289Sedwin# The Hamas government said on Saturday that it won't observe summertime after
2587226289Sedwin# the Muslim feast of Id al-Fitr, which begins on Tuesday..."
2588226289Sedwin# ...
2589325324Sgordon# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
2590226289Sedwin# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html
2591270728Spluknet# The rules for Egypt are stolen from the 'africa' file.
2592226289Sedwin
2593226289Sedwin# From Steffen Thorsen (2011-09-30):
2594240457Sedwin# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30
2595226289Sedwin# 00:00).
2596226289Sedwin# So West Bank and Gaza now have the same time again.
2597226289Sedwin#
2598226289Sedwin# Many sources, including:
2599226289Sedwin# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808
2600226289Sedwin
2601240457Sedwin# From Steffen Thorsen (2012-03-26):
2602240457Sedwin# Palestinian news sources tell that both Gaza and West Bank will start DST
2603240457Sedwin# on Friday (Thursday midnight, 2012-03-29 24:00).
2604240457Sedwin# Some of many sources in Arabic:
2605240457Sedwin# http://www.samanews.com/index.php?act=Show&id=122638
2606240457Sedwin#
2607240457Sedwin# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
2608240457Sedwin#
2609240457Sedwin# Our brief summary:
2610325324Sgordon# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
2611240457Sedwin
2612249692Sedwin# From Steffen Thorsen (2013-03-26):
2613249692Sedwin# The following news sources tells that Palestine will "start daylight saving
2614249692Sedwin# time from midnight on Friday, March 29, 2013" (translated).
2615249692Sedwin# [These are in Arabic and are for Gaza and for Ramallah, respectively.]
2616249692Sedwin# http://www.samanews.com/index.php?act=Show&id=154120
2617249692Sedwin# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
2618240457Sedwin
2619257681Sedwin# From Steffen Thorsen (2013-09-24):
2620257681Sedwin# The Gaza and West Bank are ending DST Thursday at midnight
2621257681Sedwin# (2013-09-27 00:00:00) (one hour earlier than last year...).
2622257681Sedwin# This source in English, says "that winter time will go into effect
2623257681Sedwin# at midnight on Thursday in the West Bank and Gaza Strip":
2624257681Sedwin# http://english.wafa.ps/index.php?action=detail&id=23246
2625257681Sedwin# official source...:
2626257681Sedwin# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
2627257681Sedwin
2628280413Sedwin# From Steffen Thorsen (2015-03-03):
2629280413Sedwin# Sources such as http://www.alquds.com/news/article/view/id/548257
2630325324Sgordon# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
2631280413Sedwin# start DST on 2015-03-28 00:00 which is one day later than expected.
2632280413Sedwin#
2633280413Sedwin# From Paul Eggert (2015-03-03):
2634325324Sgordon# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
2635280413Sedwin# says that the fall 2014 transition was Oct 23 at 24:00.
2636309583Sglebius
2637309583Sglebius# From Hannah Kreitem (2016-03-09):
2638309583Sglebius# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728
2639309583Sglebius# [Google translation]: "The Council also decided to start daylight
2640309583Sglebius# saving in Palestine as of one o'clock on Saturday morning,
2641309583Sglebius# 2016-03-26, to provide the clock 60 minutes ahead."
2642309583Sglebius#
2643309583Sglebius# From Paul Eggert (2016-03-12):
2644309583Sglebius# Predict spring transitions on March's last Saturday at 01:00 from now on.
2645309583Sglebius
2646309583Sglebius# From Sharef Mustafa (2016-10-19):
2647309583Sglebius# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
2648309583Sglebius# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
2649309583Sglebius# states that summer time will end on Oct 29th at 01:00.
2650309583Sglebius#
2651309583Sglebius# From Tim Parenti (2016-10-19):
2652309583Sglebius# Predict fall transitions on October's last Saturday at 01:00 from now on.
2653309583Sglebius# This is consistent with the 2016 transition as well as our spring
2654309583Sglebius# predictions.
2655309583Sglebius#
2656309583Sglebius# From Paul Eggert (2016-10-19):
2657309583Sglebius# It's also consistent with predictions in the following URLs today:
2658325324Sgordon# https://www.timeanddate.com/time/change/gaza-strip/gaza
2659325324Sgordon# https://www.timeanddate.com/time/change/west-bank/hebron
2660249692Sedwin
26612742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
266219878SwollmanRule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
266317200SwollmanRule EgyptAsia	1957	1958	-	Oct	 1	0:00	0	-
266419878SwollmanRule EgyptAsia	1958	only	-	May	 1	0:00	1:00	S
266520094SwollmanRule EgyptAsia	1959	1967	-	May	 1	1:00	1:00	S
266617200SwollmanRule EgyptAsia	1959	1965	-	Sep	30	3:00	0	-
266720094SwollmanRule EgyptAsia	1966	only	-	Oct	 1	3:00	0	-
266858787Sru
2669163302SruRule Palestine	1999	2005	-	Apr	Fri>=15	0:00	1:00	S
2670153670SwollmanRule Palestine	1999	2003	-	Oct	Fri>=15	0:00	0	-
2671153670SwollmanRule Palestine	2004	only	-	Oct	 1	1:00	0	-
2672163302SruRule Palestine	2005	only	-	Oct	 4	2:00	0	-
2673249692SedwinRule Palestine	2006	2007	-	Apr	 1	0:00	1:00	S
2674163302SruRule Palestine	2006	only	-	Sep	22	0:00	0	-
2675183066SedwinRule Palestine	2007	only	-	Sep	Thu>=8	2:00	0	-
2676249692SedwinRule Palestine	2008	2009	-	Mar	lastFri	0:00	1:00	S
2677249692SedwinRule Palestine	2008	only	-	Sep	 1	0:00	0	-
2678249692SedwinRule Palestine	2009	only	-	Sep	Fri>=1	1:00	0	-
2679249692SedwinRule Palestine	2010	only	-	Mar	26	0:00	1:00	S
2680211422SedwinRule Palestine	2010	only	-	Aug	11	0:00	0	-
2681249692SedwinRule Palestine	2011	only	-	Apr	 1	0:01	1:00	S
2682249692SedwinRule Palestine	2011	only	-	Aug	 1	0:00	0	-
2683249692SedwinRule Palestine	2011	only	-	Aug	30	0:00	1:00	S
2684249692SedwinRule Palestine	2011	only	-	Sep	30	0:00	0	-
2685280413SedwinRule Palestine	2012	2014	-	Mar	lastThu	24:00	1:00	S
2686257681SedwinRule Palestine	2012	only	-	Sep	21	1:00	0	-
2687280413SedwinRule Palestine	2013	only	-	Sep	Fri>=21	0:00	0	-
2688309583SglebiusRule Palestine	2014	2015	-	Oct	Fri>=21	0:00	0	-
2689309583SglebiusRule Palestine	2015	only	-	Mar	lastFri	24:00	1:00	S
2690309583SglebiusRule Palestine	2016	max	-	Mar	lastSat	1:00	1:00	S
2691309583SglebiusRule Palestine	2016	max	-	Oct	lastSat	1:00	0	-
269258787Sru
26932742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
26942742SwollmanZone	Asia/Gaza	2:17:52	-	LMT	1900 Oct
2695325324Sgordon			2:00	Zion	EET/EEST 1948 May 15
269643014Swollman			2:00 EgyptAsia	EE%sT	1967 Jun  5
269743014Swollman			2:00	Zion	I%sT	1996
269858787Sru			2:00	Jordan	EE%sT	1999
2699273718Sedwin			2:00 Palestine	EE%sT	2008 Aug 29  0:00
2700249692Sedwin			2:00	-	EET	2008 Sep
2701249692Sedwin			2:00 Palestine	EE%sT	2010
2702273718Sedwin			2:00	-	EET	2010 Mar 27  0:01
2703249692Sedwin			2:00 Palestine	EE%sT	2011 Aug  1
2704249692Sedwin			2:00	-	EET	2012
2705249692Sedwin			2:00 Palestine	EE%sT
27062742Swollman
2707226289SedwinZone	Asia/Hebron	2:20:23	-	LMT	1900 Oct
2708325324Sgordon			2:00	Zion	EET/EEST 1948 May 15
2709226289Sedwin			2:00 EgyptAsia	EE%sT	1967 Jun  5
2710226289Sedwin			2:00	Zion	I%sT	1996
2711226289Sedwin			2:00	Jordan	EE%sT	1999
2712249692Sedwin			2:00 Palestine	EE%sT
2713226289Sedwin
271414343Swollman# Paracel Is
271514343Swollman# no information
271614343Swollman
27172742Swollman# Philippines
2718270728Spluknet# On 1844-08-16, Narciso Claver��a, governor-general of the
271975267Swollman# Philippines, issued a proclamation announcing that 1844-12-30 was to
2720270728Spluknet# be immediately followed by 1845-01-01; see R.H. van Gent's
2721270728Spluknet# History of the International Date Line
2722325324Sgordon# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
2723273718Sedwin# The rest of the data entries are from Shanks & Pottenger.
2724158421Swollman
2725270728Spluknet# From Jesper N��rgaard Welen (2006-04-26):
2726158421Swollman# ... claims that Philippines had DST last time in 1990:
2727158421Swollman# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
2728158421Swollman# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
2729158421Swollman# but no details]
2730158421Swollman
2731273718Sedwin# From Paul Eggert (2014-08-14):
2732273718Sedwin# The following source says DST may be instituted November-January and again
2733273718Sedwin# March-June, but this is not definite.  It also says DST was last proclaimed
2734273718Sedwin# during the Ramos administration (1992-1998); but again, no details.
2735273718Sedwin# Carcamo D. PNoy urged to declare use of daylight saving time.
2736273718Sedwin# Philippine Star 2014-08-05
2737273718Sedwin# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
2738273718Sedwin
27392742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
274019878SwollmanRule	Phil	1936	only	-	Nov	1	0:00	1:00	S
274119878SwollmanRule	Phil	1937	only	-	Feb	1	0:00	0	-
274219878SwollmanRule	Phil	1954	only	-	Apr	12	0:00	1:00	S
274319878SwollmanRule	Phil	1954	only	-	Jul	1	0:00	0	-
274419878SwollmanRule	Phil	1978	only	-	Mar	22	0:00	1:00	S
274519878SwollmanRule	Phil	1978	only	-	Sep	21	0:00	0	-
27462742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
274775267SwollmanZone	Asia/Manila	-15:56:00 -	LMT	1844 Dec 31
27482742Swollman			8:04:00 -	LMT	1899 May 11
2749325324Sgordon			8:00	Phil	+08/+09	1942 May
2750325324Sgordon			9:00	-	+09	1944 Nov
2751325324Sgordon			8:00	Phil	+08/+09
27522742Swollman
27532742Swollman# Qatar
27542742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2755273718SedwinZone	Asia/Qatar	3:26:08 -	LMT	1920     # Al Dawhah / Doha
2756325324Sgordon			4:00	-	+04	1972 Jun
2757325324Sgordon			3:00	-	+03
2758279706SedwinLink Asia/Qatar Asia/Bahrain
27592742Swollman
27602742Swollman# Saudi Arabia
2761270728Spluknet#
2762270728Spluknet# From Paul Eggert (2014-07-15):
2763270728Spluknet# Time in Saudi Arabia and other countries in the Arabian peninsula was not
2764270728Spluknet# standardized until relatively recently; we don't know when, and possibly it
2765270728Spluknet# has never been made official.  Richard P Hunt, in "Islam city yielding to
2766270728Spluknet# modern times", New York Times (1961-04-09), p 20, wrote that only airlines
2767270728Spluknet# observed standard time, and that people in Jeddah mostly observed quasi-solar
2768270728Spluknet# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12
2769270728Spluknet# o'clock for "Arab" time).
2770270728Spluknet#
2771270728Spluknet# The TZ database cannot represent quasi-solar time; airline time is the best
2772270728Spluknet# we can do.  The 1946 foreign air news digest of the U.S. Civil Aeronautics
2773270728Spluknet# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated
2774270728Spluknet# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and
2775270728Spluknet# Jidda, on March 14, 1947".  Shanks & Pottenger guessed 1950; go with the
2776270728Spluknet# earlier date.
2777270728Spluknet#
2778270728Spluknet# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two
2779309583Sglebius# time zones; the other zone, at UT +04, was in the far eastern part of
2780270728Spluknet# the country.  Ignore this, as it's before our 1970 cutoff.
2781270728Spluknet#
27822742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2783270728SpluknetZone	Asia/Riyadh	3:06:52 -	LMT	1947 Mar 14
2784325324Sgordon			3:00	-	+03
2785279706SedwinLink Asia/Riyadh Asia/Aden	# Yemen
2786279706SedwinLink Asia/Riyadh Asia/Kuwait
27872742Swollman
27882742Swollman# Singapore
2789273718Sedwin# taken from Mok Ly Yng (2003-10-30)
2790273718Sedwin# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
27912742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
2792136638SwollmanZone	Asia/Singapore	6:55:25 -	LMT	1901 Jan  1
2793136638Swollman			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
2794325324Sgordon			7:00	-	+07	1933 Jan  1
2795325324Sgordon			7:00	0:20	+0720	1936 Jan  1
2796325324Sgordon			7:20	-	+0720	1941 Sep  1
2797325324Sgordon			7:30	-	+0730	1942 Feb 16
2798325324Sgordon			9:00	-	+09	1945 Sep 12
2799325324Sgordon			7:30	-	+0730	1982 Jan  1
2800325324Sgordon			8:00	-	+08
28012742Swollman
280214343Swollman# Spratly Is
280314343Swollman# no information
280414343Swollman
28052742Swollman# Sri Lanka
2806248307Sedwin
2807248307Sedwin# From Paul Eggert (2013-02-21):
2808248307Sedwin# Milne says "Madras mean time use from May 1, 1898.  Prior to this Colombo
2809248307Sedwin# mean time, 5h. 4m. 21.9s. F., was used."  But 5:04:21.9 differs considerably
2810248307Sedwin# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
2811248307Sedwin# Shanks and Pottenger.
2812248307Sedwin
281319878Swollman# From Paul Eggert (1996-09-03):
281458787Sru# "Sri Lanka advances clock by an hour to avoid blackout"
2815270728Spluknet# (<http://www.virtual-pc.com/lankaweb/news/items/240596-2.html>, 1996-05-24,
281658787Sru# no longer available as of 1999-08-17)
2817270728Spluknet# reported "the country's standard time will be put forward by one hour at
2818270728Spluknet# midnight Friday (1830 GMT) 'in the light of the present power crisis'."
281930711Swollman#
282030711Swollman# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
2821270728Spluknet# by Shamindra in Daily News - Hot News Section
2822270728Spluknet# <news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net> (1996-10-26):
282330711Swollman# With effect from 12.30 a.m. on 26th October 1996
282430711Swollman# Sri Lanka will be six (06) hours ahead of GMT.
282519878Swollman
2826270728Spluknet# From Jesper N��rgaard Welen (2006-04-14), quoting Sri Lanka News Online
2827158421Swollman# <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13):
2828158421Swollman# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
2829158421Swollman# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
2830158421Swollman
2831158421Swollman# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
2832273718Sedwin# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML
2833158421Swollman# [The Tamil Tigers] never accepted the original 1996 time change and simply
2834158421Swollman# kept their clocks set five and a half hours ahead of Greenwich Mean
2835158421Swollman# Time (GMT), in line with neighbor India.
2836158421Swollman# From Paul Eggert (2006-04-18):
2837177591Sedwin# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
2838158421Swollman# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
2839158421Swollman
2840309583Sglebius# From Sadika Sumanapala (2016-10-19):
2841309583Sglebius# According to http://www.sltime.org (maintained by Measurement Units,
2842309583Sglebius# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
2843309583Sglebius# standard time is SLST.
2844158421Swollman#
2845309583Sglebius# From Paul Eggert (2016-10-18):
2846309583Sglebius# "SLST" seems to be reasonably recent and rarely-used outside time
2847309583Sglebius# zone nerd sources.  I searched Google News and found three uses of
2848309583Sglebius# it in the International Business Times of India in February and
2849309583Sglebius# March of this year when discussing cricket match times, but nothing
2850309583Sglebius# since then (though there has been a lot of cricket) and nothing in
2851309583Sglebius# other English-language news sources.  Our old abbreviation "LKT" is
2852309583Sglebius# even worse.  For now, let's use a numeric abbreviation; we can
2853309583Sglebius# switch to "SLST" if it catches on.
2854158421Swollman
28552742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
28562742SwollmanZone	Asia/Colombo	5:19:24 -	LMT	1880
2857273718Sedwin			5:19:32	-	MMT	1906        # Moratuwa Mean Time
2858309583Sglebius			5:30	-	+0530	1942 Jan  5
2859325324Sgordon			5:30	0:30	+06	1942 Sep
2860325324Sgordon			5:30	1:00	+0630	1945 Oct 16  2:00
2861309583Sglebius			5:30	-	+0530	1996 May 25  0:00
2862309583Sglebius			6:30	-	+0630	1996 Oct 26  0:30
2863309583Sglebius			6:00	-	+06	2006 Apr 15  0:30
2864309583Sglebius			5:30	-	+0530
28652742Swollman
28662742Swollman# Syria
28672742Swollman# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
286819878SwollmanRule	Syria	1920	1923	-	Apr	Sun>=15	2:00	1:00	S
28692742SwollmanRule	Syria	1920	1923	-	Oct	Sun>=1	2:00	0	-
287019878SwollmanRule	Syria	1962	only	-	Apr	29	2:00	1:00	S
28712742SwollmanRule	Syria	1962	only	-	Oct	1	2:00	0	-
287219878SwollmanRule	Syria	1963	1965	-	May	1	2:00	1:00	S
28732742SwollmanRule	Syria	1963	only	-	Sep	30	2:00	0	-
28742742SwollmanRule	Syria	1964	only	-	Oct	1	2:00	0	-
28752742SwollmanRule	Syria	1965	only	-	Sep	30	2:00	0	-
287619878SwollmanRule	Syria	1966	only	-	Apr	24	2:00	1:00	S
28772742SwollmanRule	Syria	1966	1976	-	Oct	1	2:00	0	-
287819878SwollmanRule	Syria	1967	1978	-	May	1	2:00	1:00	S
28792742SwollmanRule	Syria	1977	1978	-	Sep	1	2:00	0	-
288019878SwollmanRule	Syria	1983	1984	-	Apr	9	2:00	1:00	S
28812742SwollmanRule	Syria	1983	1984	-	Oct	1	2:00	0	-
288219878SwollmanRule	Syria	1986	only	-	Feb	16	2:00	1:00	S
28832742SwollmanRule	Syria	1986	only	-	Oct	9	2:00	0	-
288419878SwollmanRule	Syria	1987	only	-	Mar	1	2:00	1:00	S
28852742SwollmanRule	Syria	1987	1988	-	Oct	31	2:00	0	-
288619878SwollmanRule	Syria	1988	only	-	Mar	15	2:00	1:00	S
288719878SwollmanRule	Syria	1989	only	-	Mar	31	2:00	1:00	S
28882742SwollmanRule	Syria	1989	only	-	Oct	1	2:00	0	-
288920094SwollmanRule	Syria	1990	only	-	Apr	1	2:00	1:00	S
289020094SwollmanRule	Syria	1990	only	-	Sep	30	2:00	0	-
289120094SwollmanRule	Syria	1991	only	-	Apr	 1	0:00	1:00	S
289220094SwollmanRule	Syria	1991	1992	-	Oct	 1	0:00	0	-
289320094SwollmanRule	Syria	1992	only	-	Apr	 8	0:00	1:00	S
289420094SwollmanRule	Syria	1993	only	-	Mar	26	0:00	1:00	S
289520094SwollmanRule	Syria	1993	only	-	Sep	25	0:00	0	-
289658787Sru# IATA SSIM (1998-02) says 1998-04-02;
289758787Sru# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
289858787Sru# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
2899163302Sru# (2006) says 2006-03-31 and 2006-09-22;
2900163302Sru# for now ignore all these claims and go with Shanks & Pottenger,
2901163302Sru# except for the 2006-09-22 claim (which seems right for Ramadan).
290258787SruRule	Syria	1994	1996	-	Apr	 1	0:00	1:00	S
2903163302SruRule	Syria	1994	2005	-	Oct	 1	0:00	0	-
290458787SruRule	Syria	1997	1998	-	Mar	lastMon	0:00	1:00	S
2905169811SwollmanRule	Syria	1999	2006	-	Apr	 1	0:00	1:00	S
2906163302Sru# From Stephen Colebourne (2006-09-18):
2907163302Sru# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
2908163302Sru# this year [only]....  This is probably related to Ramadan, like Egypt.
2909163302SruRule	Syria	2006	only	-	Sep	22	0:00	0	-
2910169811Swollman# From Paul Eggert (2007-03-29):
2911169811Swollman# Today the AP reported "Syria will switch to summertime at midnight Thursday."
2912169811Swollman# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
2913177591SedwinRule	Syria	2007	only	-	Mar	lastFri	0:00	1:00	S
2914270728Spluknet# From Jesper N��rgaard (2007-10-27):
2915173319Sedwin# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
2916253009Sedwin# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or
2917253009Sedwin# rather Midnight between Thursday and Friday. This does make more sense than
2918173319Sedwin# having it between Wednesday and Thursday (two workdays in Syria) since the
2919173319Sedwin# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
2920173319Sedwin# it is implemented at midnight of the last workday before weekend...
2921240457Sedwin#
2922173319Sedwin# From Steffen Thorsen (2007-10-27):
2923270728Spluknet# Jesper N��rgaard Welen wrote:
2924240457Sedwin#
2925173319Sedwin# > "Winter local time in Syria will be observed at midnight of Thursday 1
2926173319Sedwin# > November 2007, and the clock will be put back 1 hour."
2927240457Sedwin#
2928173319Sedwin# I found confirmation on this in this gov.sy-article (Arabic):
2929173319Sedwin# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
2930240457Sedwin#
2931173319Sedwin# which using Google's translate tools says:
2932240457Sedwin# Council of Ministers also approved the commencement of work on
2933240457Sedwin# identifying the winter time as of Friday, 2/11/2007 where the 60th
2934173319Sedwin# minute delay at midnight Thursday 1/11/2007.
2935177591SedwinRule	Syria	2007	only	-	Nov	 Fri>=1	0:00	0	-
2936177591Sedwin
2937177591Sedwin# From Stephen Colebourne (2008-03-17):
2938177591Sedwin# For everyone's info, I saw an IATA time zone change for [Syria] for
2939273718Sedwin# this month (March 2008) in the last day or so....
2940177591Sedwin# Country     Time Standard   --- DST Start ---   --- DST End ---  DST
2941177591Sedwin# Name        Zone Variation   Time    Date        Time    Date
2942177591Sedwin# Variation
2943177591Sedwin# Syrian Arab
2944177591Sedwin# Republic    SY    +0200      2200  03APR08       2100  30SEP08   +0300
2945177591Sedwin#                              2200  02APR09       2100  30SEP09   +0300
2946177591Sedwin#                              2200  01APR10       2100  30SEP10   +0300
2947177591Sedwin
2948177591Sedwin# From Arthur David Olson (2008-03-17):
2949177591Sedwin# Here's a link to English-language coverage by the Syrian Arab News
2950177591Sedwin# Agency (SANA)...
2951177591Sedwin# http://www.sana.sy/eng/21/2008/03/11/165173.htm
2952270728Spluknet# ...which reads (in part) "The Cabinet approved the suggestion of the
2953177591Sedwin# Ministry of Electricity to begin daylight savings time on Friday April
2954177591Sedwin# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
2955177591Sedwin# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
2956177591Sedwin# shown above match up with midnight in Syria.
2957177591Sedwin
2958177591Sedwin# From Arthur David Olson (2008-03-18):
2959270728Spluknet# My best guess at a Syrian rule is "the Friday nearest April 1";
2960177591Sedwin# coding that involves either using a "Mar Fri>=29" construct that old time zone
2961177591Sedwin# compilers can't handle  or having multiple Rules (a la Israel).
2962177591Sedwin# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
2963177591Sedwin
2964183864Sedwin# From Steffen Thorsen (2008-10-07):
2965183864Sedwin# Syria has now officially decided to end DST on 2008-11-01 this year,
2966183864Sedwin# according to the following article in the Syrian Arab News Agency (SANA).
2967183864Sedwin#
2968183864Sedwin# The article is in Arabic, and seems to tell that they will go back to
2969183864Sedwin# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting
2970183864Sedwin# clocks back 60 minutes).
2971183864Sedwin#
2972183864Sedwin# http://sana.sy/ara/2/2008/10/07/195459.htm
2973183864Sedwin
2974190372Sedwin# From Steffen Thorsen (2009-03-19):
2975190372Sedwin# Syria will start DST on 2009-03-27 00:00 this year according to many sources,
2976190372Sedwin# two examples:
2977190372Sedwin#
2978190372Sedwin# http://www.sana.sy/eng/21/2009/03/17/217563.htm
2979190372Sedwin# (English, Syrian Arab News # Agency)
2980190372Sedwin# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209
2981190372Sedwin# (Arabic, gov-site)
2982190372Sedwin#
2983190372Sedwin# We have not found any sources saying anything about when DST ends this year.
2984190372Sedwin#
2985190372Sedwin# Our summary
2986325324Sgordon# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
2987190372Sedwin
2988198825Sedwin# From Steffen Thorsen (2009-10-27):
2989240457Sedwin# The Syrian Arab News Network on 2009-09-29 reported that Syria will
2990240457Sedwin# revert back to winter (standard) time on midnight between Thursday
2991198825Sedwin# 2009-10-29 and Friday 2009-10-30:
2992198825Sedwin# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic)
2993198825Sedwin
2994198825Sedwin# From Arthur David Olson (2009-10-28):
2995198825Sedwin# We'll see if future DST switching times turn out to be end of the last
2996198825Sedwin# Thursday of the month or the start of the last Friday of the month or
2997198825Sedwin# something else. For now, use the start of the last Friday.
2998198825Sedwin
2999205475Sedwin# From Steffen Thorsen (2010-03-17):
3000205475Sedwin# The "Syrian News Station" reported on 2010-03-16 that the Council of
3001205475Sedwin# Ministers has decided that Syria will start DST on midnight Thursday
3002205475Sedwin# 2010-04-01: (midnight between Thursday and Friday):
3003205475Sedwin# http://sns.sy/sns/?path=news/read/11421 (Arabic)
3004205475Sedwin
3005240457Sedwin# From Steffen Thorsen (2012-03-26):
3006240457Sedwin# Today, Syria's government announced that they will start DST early on Friday
3007240457Sedwin# (00:00). This is a bit earlier than the past two years.
3008240457Sedwin#
3009240457Sedwin# From Syrian Arab News Agency, in Arabic:
3010240457Sedwin# http://www.sana.sy/ara/2/2012/03/26/408215.htm
3011240457Sedwin#
3012240457Sedwin# Our brief summary:
3013325324Sgordon# https://www.timeanddate.com/news/time/syria-dst-2012.html
3014240457Sedwin
3015240457Sedwin# From Arthur David Olson (2012-03-27):
3016240457Sedwin# Assume last Friday in March going forward XXX.
3017240457Sedwin
3018190372SedwinRule	Syria	2008	only	-	Apr	Fri>=1	0:00	1:00	S
3019198825SedwinRule	Syria	2008	only	-	Nov	1	0:00	0	-
3020205475SedwinRule	Syria	2009	only	-	Mar	lastFri	0:00	1:00	S
3021240457SedwinRule	Syria	2010	2011	-	Apr	Fri>=1	0:00	1:00	S
3022240457SedwinRule	Syria	2012	max	-	Mar	lastFri	0:00	1:00	S
3023198825SedwinRule	Syria	2009	max	-	Oct	lastFri	0:00	0	-
3024177591Sedwin
30252742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3026273718SedwinZone	Asia/Damascus	2:25:12 -	LMT	1920 # Dimashq
302719878Swollman			2:00	Syria	EE%sT
30282742Swollman
30292742Swollman# Tajikistan
3030158421Swollman# From Shanks & Pottenger.
30312742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
30322742SwollmanZone	Asia/Dushanbe	4:35:12 -	LMT	1924 May  2
3033309583Sglebius			5:00	-	+05	1930 Jun 21
3034309583Sglebius			6:00 RussiaAsia +06/+07	1991 Mar 31  2:00s
3035309583Sglebius			5:00	1:00	+05/+06	1991 Sep  9  2:00s
3036309583Sglebius			5:00	-	+05
30372742Swollman
30382742Swollman# Thailand
30392742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
30402742SwollmanZone	Asia/Bangkok	6:42:04	-	LMT	1880
304119878Swollman			6:42:04	-	BMT	1920 Apr # Bangkok Mean Time
3042325324Sgordon			7:00	-	+07
3043273718SedwinLink Asia/Bangkok Asia/Phnom_Penh	# Cambodia
3044273718SedwinLink Asia/Bangkok Asia/Vientiane	# Laos
30452742Swollman
30462742Swollman# Turkmenistan
3047158421Swollman# From Shanks & Pottenger.
30482742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
304967578SwollmanZone	Asia/Ashgabat	3:53:32 -	LMT	1924 May  2 # or Ashkhabad
3050309583Sglebius			4:00	-	+04	1930 Jun 21
3051309583Sglebius			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00
3052309583Sglebius			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00
3053309583Sglebius			5:00	-	+05
30542742Swollman
30552742Swollman# United Arab Emirates
30562742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
30572742SwollmanZone	Asia/Dubai	3:41:12 -	LMT	1920
3058325324Sgordon			4:00	-	+04
3059279706SedwinLink Asia/Dubai Asia/Muscat	# Oman
30602742Swollman
30612742Swollman# Uzbekistan
3062273718Sedwin# Byalokoz 1919 says Uzbekistan was 4:27:53.
30632742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3064273718SedwinZone	Asia/Samarkand	4:27:53 -	LMT	1924 May  2
3065309583Sglebius			4:00	-	+04	1930 Jun 21
3066309583Sglebius			5:00	-	+05	1981 Apr  1
3067309583Sglebius			5:00	1:00	+06	1981 Oct  1
3068309583Sglebius			6:00	-	+06	1982 Apr  1
3069309583Sglebius			5:00 RussiaAsia	+05/+06	1992
3070309583Sglebius			5:00	-	+05
3071270728Spluknet# Milne says Tashkent was 4:37:10.8; round to nearest.
3072270728SpluknetZone	Asia/Tashkent	4:37:11 -	LMT	1924 May  2
3073309583Sglebius			5:00	-	+05	1930 Jun 21
3074309583Sglebius			6:00 RussiaAsia	+06/+07	1991 Mar 31  2:00
3075309583Sglebius			5:00 RussiaAsia	+05/+06	1992
3076309583Sglebius			5:00	-	+05
30772742Swollman
30782742Swollman# Vietnam
3079158421Swollman
3080273718Sedwin# From Paul Eggert (2014-10-04):
3081248307Sedwin# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
3082248307Sedwin# used in Lower Laos, Cambodia, and Annam.  But this is quite a ways
3083248307Sedwin# from Saigon's location.  For now, ignore this and stick with Shanks
3084273718Sedwin# and Pottenger for LMT before 1906.
3085248307Sedwin
3086177591Sedwin# From Arthur David Olson (2008-03-18):
3087270728Spluknet# The English-language name of Vietnam's most populous city is "Ho Chi Minh
3088270728Spluknet# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
3089158421Swollman
3090273718Sedwin# From Paul Eggert (2014-10-21) after a heads-up from Tr���n Ng���c Qu��n:
3091273718Sedwin# Tr���n Ti���n B��nh's authoritative book "L���ch Vi���t Nam: th��� k��� XX-XXI (1901-2100)"
3092273718Sedwin# (Nh�� xu���t b���n V��n Ho�� - Th��ng Tin, Hanoi, 2005), pp 49-50,
3093273718Sedwin# is quoted verbatim in:
3094273718Sedwin# http://www.thoigian.com.vn/?mPage=P80D01
3095273718Sedwin# is translated by Brian Inglis in:
3096325324Sgordon# https://mm.icann.org/pipermail/tz/2014-October/021654.html
3097273718Sedwin# and is the basis for the information below.
3098273718Sedwin#
3099273718Sedwin# The 1906 transition was effective July 1 and standardized Indochina to
3100273718Sedwin# Ph�� Li���n Observatory, legally 104 deg. 17'17" east of Paris.
3101273718Sedwin# It's unclear whether this meant legal Paris Mean Time (00:09:21) or
3102273718Sedwin# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333...
3103273718Sedwin# and the latter 07:06:29.333... so either way it rounds to 07:06:30,
3104273718Sedwin# which is used below even though the modern-day Ph�� Li���n Observatory
3105273718Sedwin# is closer to 07:06:31.  Abbreviate Ph�� Li���n Mean Time as PLMT.
3106273718Sedwin#
3107273718Sedwin# The following transitions occurred in Indochina in general (before 1954)
3108273718Sedwin# and in South Vietnam in particular (after 1954):
3109273718Sedwin# To 07:00 on 1911-05-01.
3110273718Sedwin# To 08:00 on 1942-12-31 at 23:00.
3111273718Sedwin# To 09:00 in 1945-03-14 at 23:00.
3112273718Sedwin# To 07:00 on 1945-09-02 in Vietnam.
3113273718Sedwin# To 08:00 on 1947-04-01 in French-controlled Indochina.
3114273718Sedwin# To 07:00 on 1955-07-01 in South Vietnam.
3115273718Sedwin# To 08:00 on 1959-12-31 at 23:00 in South Vietnam.
3116273718Sedwin# To 07:00 on 1975-06-13 in South Vietnam.
3117273718Sedwin#
3118273718Sedwin# Tr���n cites the following sources; it's unclear which supplied the info above.
3119273718Sedwin#
3120273718Sedwin# Ho��ng Xu��n H��n: "L���ch v�� l���ch Vi���t Nam". T���p san Khoa h���c X�� h���i,
3121273718Sedwin# No. 9, Paris, February 1982.
3122273718Sedwin#
3123273718Sedwin# L�� Th��nh L��n: "L���ch v�� ni��n bi���u l���ch s��� hai m����i th��� k��� (0001-2010)",
3124273718Sedwin# NXB Th���ng k��, Hanoi, 2000.
3125273718Sedwin#
3126273718Sedwin# L�� Th��nh L��n: "L���ch hai th��� k��� (1802-2010) v�� c��c l���ch v��nh c���u",
3127273718Sedwin# NXB Thu���n Ho��, Hu���, 1995.
3128273718Sedwin
31292742Swollman# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
3130273718SedwinZone Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jul  1
3131325324Sgordon			7:06:30	-	PLMT	1911 May  1 # Ph�� Li���n MT
3132325324Sgordon			7:00	-	+07	1942 Dec 31 23:00
3133325324Sgordon			8:00	-	+08	1945 Mar 14 23:00
3134325324Sgordon			9:00	-	+09	1945 Sep  2
3135325324Sgordon			7:00	-	+07	1947 Apr  1
3136325324Sgordon			8:00	-	+08	1955 Jul  1
3137325324Sgordon			7:00	-	+07	1959 Dec 31 23:00
3138325324Sgordon			8:00	-	+08	1975 Jun 13
3139325324Sgordon			7:00	-	+07
31402742Swollman
31412742Swollman# Yemen
3142279706Sedwin# See Asia/Riyadh.
3143