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1# @(#)asia 7.55
2# $FreeBSD: head/share/zoneinfo/asia 58787 2000-03-29 14:01:46Z ru $
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert <eggert@twinsun.com> (1999-03-22):
9#
10# A good source for time zone historical data outside the U.S. is
11# Thomas G. Shanks, The International Atlas (5th edition),
12# San Diego: ACS Publications, Inc. (1999).
13#
14# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
15# for recent time zone data is the International Air Transport
16# Association's Standard Schedules Information Manual (IATA SSIM),
17# published semiannually. Law sent in several helpful summaries
18# of the IATA's data after 1990.
19#
20# Except where otherwise noted, Shanks is the source for entries through 1990,
21# and IATA SSIM is the source for entries after 1990.
22#
23# Another source occasionally used is Edward W. Whitman, World Time Differences,
24# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
25# I found in the UCLA library.
26#
27# A reliable and entertaining source about time zones is
28# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
29#
30# I invented the abbreviations marked `*' in the following table;
31# the rest are from earlier versions of this file, or from other sources.
32# Corrections are welcome!
33# std dst
34# LMT Local Mean Time
35# 2:00 EET EEST Eastern European Time
36# 2:00 IST IDT Israel
37# 3:00 AST ADT Arabia*
38# 4:00 GST Gulf*
39# 5:30 IST India
40# 7:00 ICT Indochina*
41# 8:00 CST China
42# 9:00 CJT Central Japanese Time (1896/1937)*
43# 9:00 JST Japan
44# 9:00 KST Korea
45# 9:30 CST (Australian) Central Standard Time
46#
47# See the `europe' file for Russia and Turkey in Asia.
48
49# From Guy Harris:
50# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
51# additional information from Tom Yap, Sun Microsystems Intercontinental
52# Technical Support (including a page from the Official Airline Guide -
53# Worldwide Edition). The names for time zones are guesses.
54
55###############################################################################
56
57# These rules are stolen from the `europe' file.
58# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
59Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
60Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
61Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
62Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
63Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
64Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
65Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
66Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
67Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
68Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
69Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
70Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
71Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
72Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
73
74# Afghanistan
75# Zone NAME GMTOFF RULES FORMAT [UNTIL]
76Zone Asia/Kabul 4:36:48 - LMT 1890
77 4:00 - AFT 1945
78 4:30 - AFT
79
80# Armenia
81# From Paul Eggert (1999-10-29):
82# Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
83# then to 4:00 with no DST in fall 1995, then readopting Russian DST in 1997.
84# Go with Shanks, even when he disagrees with others. Edgar Der-Danieliantz
85# <edd@AIC.NET> reported (1996-05-04) that Yerevan probably wouldn't use DST
86# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
87# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
88# but started switching at 3:00s in 1998.
89# Zone NAME GMTOFF RULES FORMAT [UNTIL]
90Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
91 3:00 - YERT 1957 Mar # Yerevan Time
92 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
93 3:00 1:00 YERST 1991 Sep 23 # independence
94 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
95 4:00 - AMT 1997
96 4:00 RussiaAsia AM%sT
97
98# Azerbaijan
99# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
100Rule Azer 1997 max - Mar lastSun 1:00 1:00 S
101Rule Azer 1997 max - Oct lastSun 1:00 0 -
102# Zone NAME GMTOFF RULES FORMAT [UNTIL]
103Zone Asia/Baku 3:19:24 - LMT 1924 May 2
104 3:00 - BAKT 1957 Mar # Baku Time
105 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
106 3:00 1:00 BAKST 1991 Aug 30 # independence
107 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s
108 4:00 - AZT 1996 # Azerbaijan time
109 4:00 EUAsia AZ%sT 1997
110 4:00 Azer AZ%sT
111
112# Bahrain
113# Zone NAME GMTOFF RULES FORMAT [UNTIL]
114Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al-Manamah
115 4:00 - GST 1972 Jun
116 3:00 - AST
117
118# Bangladesh
119# Zone NAME GMTOFF RULES FORMAT [UNTIL]
120Zone Asia/Dacca 6:01:40 - LMT 1890
121 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
122 6:30 - BURT 1942 May 15 # Burma Time
123 5:30 - IST 1942 Sep
124 6:30 - BURT 1951 Sep 30
125 6:00 - DACT 1971 Mar 26 # Dacca Time
126 6:00 - BDT # Bangladesh Time
127
128# Bhutan
129# Zone NAME GMTOFF RULES FORMAT [UNTIL]
130Zone Asia/Thimbu 5:58:36 - LMT 1947 Aug 15
131 5:30 - IST 1987 Oct
132 6:00 - BTT # Bhutan Time
133
134# British Indian Ocean Territory
135# From Whitman:
136# Zone NAME GMTOFF RULES FORMAT [UNTIL]
137Zone Indian/Chagos 5:00 - IOT # BIOT Time
138
139# Brunei
140# Zone NAME GMTOFF RULES FORMAT [UNTIL]
141Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
142 7:30 - BNT 1933
143 8:00 - BNT
144
145# Burma / Myanmar
146# Zone NAME GMTOFF RULES FORMAT [UNTIL]
147Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
148 6:24:36 - RMT 1920 # Rangoon Mean Time?
149 6:30 - BURT 1942 May # Burma Time
150 9:00 - JST 1945 May 3
151 6:30 - MMT # Myanmar Time
152
153# Cambodia
154# Zone NAME GMTOFF RULES FORMAT [UNTIL]
155Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
156 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
157 7:00 - ICT 1912 May
158 8:00 - ICT 1931 May
159 7:00 - ICT
160
161# China
162
163# From Guy Harris:
164# People's Republic of China. Yes, they really have only one time zone.
165
166# From Bob Devine (1988-01-28):
167# No they don't. See TIME mag, 1986-02-17 p.52. Even though
168# China is across 4 physical time zones, before Feb 1, 1986 only the
169# Peking (Bejing) time zone was recognized. Since that date, China
170# has two of 'em -- Peking's and Urumqi (named after the capital of
171# the Xinjiang Uighur Autonomous Region). I don't know about DST for it.
172#
173# . . .I just deleted the DST table and this editor makes it too
174# painful to suck in another copy.. So, here is what I have for
175# DST start/end dates for Peking's time zone (info from AP):
176#
177# 1986 May 4 - Sept 14
178# 1987 mid-April - ??
179
180# From U. S. Naval Observatory (1989-01-19):
181# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
182# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
183
184# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
185# Shanks writes that China has had a single time zone since 1980 May 1,
186# observing summer DST from 1986 through 1991; this contradicts Devine's
187# note about Time magazine, though apparently _something_ happened in 1986.
188# Go with Shanks for now. I made up names for the other pre-1980 time zones.
189
190# From Shanks:
191# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
192Rule Shang 1940 only - Jun 3 0:00 1:00 D
193Rule Shang 1940 1941 - Oct 1 0:00 0 S
194Rule Shang 1941 only - Mar 16 0:00 1:00 D
195Rule PRC 1949 only - Jan 1 0:00 0 S
196Rule PRC 1986 only - May 4 0:00 1:00 D
197Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
198Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
199# Zone NAME GMTOFF RULES FORMAT [UNTIL]
200Zone Asia/Harbin 8:26:44 - LMT 1928
201 8:30 - HART 1932 Mar # Harbin Time
202 8:00 - CST 1940
203 9:00 - HART 1966 May
204 8:30 - HART 1980 May
205 8:00 PRC C%sT
206Zone Asia/Shanghai 8:05:52 - LMT 1928
207 8:00 Shang C%sT 1949
208 8:00 PRC C%sT
209Zone Asia/Chungking 7:06:20 - LMT 1928
210 7:00 - CHUT 1980 May # Chungking Time
211 8:00 PRC C%sT
212Zone Asia/Urumqi 5:50:20 - LMT 1928
213 6:00 - URUT 1980 May # Urumqi Time
214 8:00 PRC C%sT
215Zone Asia/Kashgar 5:03:56 - LMT 1928
216 5:30 - KAST 1940 # Kashgar Time
217 5:00 - KAST 1980 May
218 8:00 PRC C%sT
219# Hong Kong
220# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
221Rule HK 1946 only - Apr 20 3:30 1:00 S
222Rule HK 1946 only - Dec 1 3:30 0 -
223Rule HK 1947 only - Apr 13 3:30 1:00 S
224Rule HK 1947 only - Dec 30 3:30 0 -
225Rule HK 1948 only - May 2 3:30 1:00 S
226Rule HK 1948 1952 - Oct lastSun 3:30 0 -
227Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
228Rule HK 1953 only - Nov 1 3:30 0 -
229Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
230Rule HK 1954 only - Oct 31 3:30 0 -
231Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
232Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
233Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
234Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
235Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
236# Zone NAME GMTOFF RULES FORMAT [UNTIL]
237Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
238 8:00 HK HK%sT
239
240
241###############################################################################
242
243# Taiwan
244
245# Shanks writes that Taiwan observed DST during 1945, when it
246# was still controlled by Japan. This is hard to believe, but we don't
247# have any other information.
248
249# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
250Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
251Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
252Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
253Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
254Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
255Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
256Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
257Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
258Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
259Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
260Rule Taiwan 1980 only - Sep 30 0:00 0 S
261# Zone NAME GMTOFF RULES FORMAT [UNTIL]
262Zone Asia/Taipei 8:06:00 - LMT 1896
263 8:00 Taiwan C%sT
264
265# Macao
266# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
267Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 S
268Rule Macao 1961 1964 - Nov Sun>=1 3:30 0 -
269Rule Macao 1963 only - Mar Sun>=16 0:00 1:00 S
270Rule Macao 1964 only - Mar Sun>=16 3:30 1:00 S
271Rule Macao 1965 only - Mar Sun>=16 0:00 1:00 S
272Rule Macao 1965 only - Oct 31 0:00 0 -
273Rule Macao 1966 1971 - Apr Sun>=16 3:30 1:00 S
274Rule Macao 1966 1971 - Oct Sun>=16 3:30 0 -
275Rule Macao 1972 1974 - Apr Sun>=15 0:00 1:00 S
276Rule Macao 1972 1973 - Oct Sun>=15 0:00 0 -
277Rule Macao 1974 1977 - Oct Sun>=15 3:30 0 -
278Rule Macao 1975 1977 - Apr Sun>=15 3:30 1:00 S
279Rule Macao 1978 1980 - Apr Sun>=15 0:00 1:00 S
280Rule Macao 1978 1980 - Oct Sun>=15 0:00 0 -
281# Zone NAME GMTOFF RULES FORMAT [UNTIL]
282Zone Asia/Macao 7:34:20 - LMT 1912
283 8:00 Macao MO%sT 1999 Dec 20 # return to China
284 8:00 PRC C%sT
285
286
287###############################################################################
288
289# Cyprus
290# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
291Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
292Rule Cyprus 1975 only - Oct 12 0:00 0 -
293Rule Cyprus 1976 only - May 15 0:00 1:00 S
294Rule Cyprus 1976 only - Oct 11 0:00 0 -
295Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
296Rule Cyprus 1977 only - Sep 25 0:00 0 -
297Rule Cyprus 1978 only - Oct 2 0:00 0 -
298Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
299Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
300# Zone NAME GMTOFF RULES FORMAT [UNTIL]
301Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
302 2:00 Cyprus EE%sT 1998 Sep
303 2:00 EUAsia EE%sT
304# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
305
306# Georgia
307# From Paul Eggert <eggert@twinsun.com> (1994-11-19):
308# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
309# an hour recently, due to a law proposed by Zurab Murvanidze,
310# an MP who went on a hunger strike for 11 days to force discussion about it!
311# We have no details, but we'll guess they didn't move the clocks back in fall.
312#
313# From Mathew Englander <mathew@io.org>, quoting AP (1996-10-23 13:05-04):
314# Instead of putting back clocks at the end of October, Georgia
315# will stay on daylight savings time this winter to save energy,
316# President Eduard Shevardnadze decreed Wednesday.
317# Zone NAME GMTOFF RULES FORMAT [UNTIL]
318Zone Asia/Tbilisi 2:59:16 - LMT 1880
319 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
320 3:00 - TBIT 1957 Mar # Tbilisi Time
321 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
322 3:00 1:00 TBIST 1991 Apr 9 # independence
323 3:00 RussiaAsia GE%sT 1992 # Georgia Time
324 3:00 E-EurAsia GE%sT 1994 Sep lastSun
325 4:00 E-EurAsia GE%sT 1996 Oct lastSun
326 4:00 1:00 GEST 1997 Mar lastSun
327 4:00 E-EurAsia GE%sT
328
329# East Timor
330# Zone NAME GMTOFF RULES FORMAT [UNTIL]
331Zone Asia/Dili 8:22:20 - LMT 1912
332 8:00 - TPT 1942 Feb 21 23:00
333 9:00 - JST 1945 Aug
334 9:00 - TPT 1976 May 3
335 8:00 - TPT # East Timor Time
336
337# India
338# Zone NAME GMTOFF RULES FORMAT [UNTIL]
339Zone Asia/Calcutta 5:53:28 - LMT 1880
340 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
341 6:30 - BURT 1942 May 15 # Burma Time
342 5:30 - IST 1942 Sep
343 5:30 1:00 IST 1945 Oct 15
344 5:30 - IST
345# The following are like Asia/Calcutta:
346# Andaman Is
347# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
348# Nicobar Is
349
350# Indonesia
351# Zone NAME GMTOFF RULES FORMAT [UNTIL]
352Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
353# Shanks says the next transition was at 1924 Jan 1 0:13,
354# but this must be a typo.
355 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
356 7:20 - JAVT 1932 Nov # Java Time
357 7:30 - JAVT 1942 Mar 23
358 9:00 - JST 1945 Aug
359 7:30 - JAVT 1948 May
360 8:00 - JAVT 1950 May
361 7:30 - JAVT 1964
362 7:00 - JAVT
363Zone Asia/Ujung_Pandang 7:57:36 - LMT 1920
364 7:57:36 - MMT 1932 Nov # Macassar MT
365 8:00 - BORT 1942 Feb 9 # Borneo Time
366 9:00 - JST 1945 Aug
367 8:00 - BORT
368Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
369 9:00 - JAYT 1944 # Jayapura Time
370 9:30 - CST 1964
371 9:00 - JAYT
372
373# Iran
374# From Paul Eggert (1999-09-27), following up a suggestion by Rich Wales:
375# Ahmea Alavi in
376# <a href="http://tehran.stanford.edu/Iran_Lib/Calendar/taghveem.txt">
377# TAGHVEEM (1993-07-12)
378# </a>
379# writes ``Daylight saving time in Iran starts from the first day
380# of Farvardin and ends the first day of Mehr.'' This disagrees with the SSIM:
381#
382# DST start DST end
383# year SSIM Alavi SSIM Alavi
384# 1991 05-03!= 03-21 09-20!= 09-23
385# 1992 03-22!= 03-21 09-23 09-23
386# 1993 03-21 03-21 09-23 09-23
387# 1994 03-21 03-21 09-22!= 09-23
388# 1995 03-21 03-21 09-22!= 09-23
389# 1996 03-21!= 03-20 09-21!= 09-22
390# 1997 03-21 03-21 09-21!= 09-23
391# 1998 03-21 03-21 09-21!= 09-23
392# 1999 03-22!= 03-21 09-22!= 09-23
393# 2000 03-21!= 03-20 09-21!= 09-22
394# 2001 03-17!= 03-21 09-19!= 09-23
395#
396# Go with Alavi starting with 1992.
397# I used Ed Reingold's cal-persia in GNU Emacs 19.34 to compute Persian dates.
398# The Persian calendar is based on the sun, and dates after around 2050
399# are approximate; stop after 2037 when 32-bit time_t's overflow.
400#
401# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
402Rule Iran 1978 1980 - Mar 21 0:00 1:00 S
403Rule Iran 1978 only - Oct 21 0:00 0 -
404Rule Iran 1979 only - Sep 19 0:00 0 -
405Rule Iran 1980 only - Sep 23 0:00 0 -
406Rule Iran 1991 only - May 3 0:00s 1:00 S
407Rule Iran 1991 only - Sep 20 0:00s 0 -
408Rule Iran 1992 1995 - Mar 21 0:00 1:00 S
409Rule Iran 1992 1995 - Sep 23 0:00 0 -
410Rule Iran 1996 only - Mar 20 0:00 1:00 S
411Rule Iran 1996 only - Sep 22 0:00 0 -
412Rule Iran 1997 1999 - Mar 21 0:00 1:00 S
413Rule Iran 1997 1999 - Sep 23 0:00 0 -
414Rule Iran 2000 only - Mar 20 0:00 1:00 S
415Rule Iran 2000 only - Sep 22 0:00 0 -
416Rule Iran 2001 2003 - Mar 21 0:00 1:00 S
417Rule Iran 2001 2003 - Sep 23 0:00 0 -
418Rule Iran 2004 only - Mar 20 0:00 1:00 S
419Rule Iran 2004 only - Sep 22 0:00 0 -
420Rule Iran 2005 2007 - Mar 21 0:00 1:00 S
421Rule Iran 2005 2007 - Sep 23 0:00 0 -
422Rule Iran 2008 only - Mar 20 0:00 1:00 S
423Rule Iran 2008 only - Sep 22 0:00 0 -
424Rule Iran 2009 2011 - Mar 21 0:00 1:00 S
425Rule Iran 2009 2011 - Sep 23 0:00 0 -
426Rule Iran 2012 only - Mar 20 0:00 1:00 S
427Rule Iran 2012 only - Sep 22 0:00 0 -
428Rule Iran 2013 2015 - Mar 21 0:00 1:00 S
429Rule Iran 2013 2015 - Sep 23 0:00 0 -
430Rule Iran 2016 only - Mar 20 0:00 1:00 S
431Rule Iran 2016 only - Sep 22 0:00 0 -
432Rule Iran 2017 2019 - Mar 21 0:00 1:00 S
433Rule Iran 2017 2019 - Sep 23 0:00 0 -
434Rule Iran 2020 only - Mar 20 0:00 1:00 S
435Rule Iran 2020 only - Sep 22 0:00 0 -
436Rule Iran 2021 2023 - Mar 21 0:00 1:00 S
437Rule Iran 2021 2023 - Sep 23 0:00 0 -
438Rule Iran 2024 2025 - Mar 20 0:00 1:00 S
439Rule Iran 2024 2025 - Sep 22 0:00 0 -
440Rule Iran 2026 2027 - Mar 21 0:00 1:00 S
441Rule Iran 2026 2027 - Sep 23 0:00 0 -
442Rule Iran 2028 2029 - Mar 20 0:00 1:00 S
443Rule Iran 2028 2029 - Sep 22 0:00 0 -
444Rule Iran 2030 2031 - Mar 21 0:00 1:00 S
445Rule Iran 2030 2031 - Sep 23 0:00 0 -
446Rule Iran 2032 2033 - Mar 20 0:00 1:00 S
447Rule Iran 2032 2033 - Sep 22 0:00 0 -
448Rule Iran 2034 2035 - Mar 21 0:00 1:00 S
449Rule Iran 2034 2035 - Sep 23 0:00 0 -
450Rule Iran 2036 2037 - Mar 20 0:00 1:00 S
451Rule Iran 2036 2037 - Sep 22 0:00 0 -
452# Zone NAME GMTOFF RULES FORMAT [UNTIL]
453Zone Asia/Tehran 3:25:44 - LMT 1916
454 3:25:44 - TMT 1946 # Tehran Mean Time
455 3:30 - IRT 1977 Nov
456 4:00 Iran IR%sT 1979
457 3:30 Iran IR%sT
458
459# Iraq
460# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
461Rule Iraq 1982 only - May 1 0:00 1:00 D
462Rule Iraq 1982 1984 - Oct 1 0:00 0 S
463Rule Iraq 1983 only - Mar 31 0:00 1:00 D
464Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
465Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
466Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
467# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
468# Shanks says Iraq did not observe DST 1992/1997 or 1999 on; ignore this.
469Rule Iraq 1991 max - Apr 1 3:00s 1:00 D
470Rule Iraq 1991 max - Oct 1 3:00s 0 D
471# Zone NAME GMTOFF RULES FORMAT [UNTIL]
472Zone Asia/Baghdad 2:57:40 - LMT 1890
473 2:57:36 - BMT 1918 # Baghdad Mean Time?
474 3:00 - AST 1982 May
475 3:00 Iraq A%sT
476
477
478###############################################################################
479
480# Israel
481
482# From U. S. Naval Observatory (1989-01-19):
483# ISRAEL 2 H AHEAD OF UTC
484# ISRAEL 3 H AHEAD OF UTC APR 10 - SEP 3
485
486# From Shanks:
487# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
488Rule Zion 1940 only - Jun 1 0:00 1:00 D
489Rule Zion 1942 1944 - Nov 1 0:00 0 S
490Rule Zion 1943 only - Apr 1 2:00 1:00 D
491Rule Zion 1944 only - Apr 1 0:00 1:00 D
492Rule Zion 1945 only - Apr 16 0:00 1:00 D
493Rule Zion 1945 only - Nov 1 2:00 0 S
494Rule Zion 1946 only - Apr 16 2:00 1:00 D
495Rule Zion 1946 only - Nov 1 0:00 0 S
496Rule Zion 1948 only - May 23 0:00 2:00 DD
497Rule Zion 1948 only - Sep 1 0:00 1:00 D
498Rule Zion 1948 1949 - Nov 1 2:00 0 S
499Rule Zion 1949 only - May 1 0:00 1:00 D
500Rule Zion 1950 only - Apr 16 0:00 1:00 D
501Rule Zion 1950 only - Sep 15 3:00 0 S
502Rule Zion 1951 only - Apr 1 0:00 1:00 D
503Rule Zion 1951 only - Nov 11 3:00 0 S
504Rule Zion 1952 only - Apr 20 2:00 1:00 D
505Rule Zion 1952 only - Oct 19 3:00 0 S
506Rule Zion 1953 only - Apr 12 2:00 1:00 D
507Rule Zion 1953 only - Sep 13 3:00 0 S
508Rule Zion 1954 only - Jun 13 0:00 1:00 D
509Rule Zion 1954 only - Sep 12 0:00 0 S
510Rule Zion 1955 only - Jun 11 2:00 1:00 D
511Rule Zion 1955 only - Sep 11 0:00 0 S
512Rule Zion 1956 only - Jun 3 0:00 1:00 D
513Rule Zion 1956 only - Sep 30 3:00 0 S
514Rule Zion 1957 only - Apr 29 2:00 1:00 D
515Rule Zion 1957 only - Sep 22 0:00 0 S
516Rule Zion 1974 only - Jul 7 0:00 1:00 D
517Rule Zion 1974 only - Oct 13 0:00 0 S
518Rule Zion 1975 only - Apr 20 0:00 1:00 D
519Rule Zion 1975 only - Aug 31 0:00 0 S
520Rule Zion 1985 only - Apr 14 0:00 1:00 D
521Rule Zion 1985 only - Sep 15 0:00 0 S
522Rule Zion 1986 only - May 18 0:00 1:00 D
523Rule Zion 1986 only - Sep 7 0:00 0 S
524Rule Zion 1987 only - Apr 15 0:00 1:00 D
525Rule Zion 1987 only - Sep 13 0:00 0 S
526Rule Zion 1988 only - Apr 9 0:00 1:00 D
527Rule Zion 1988 only - Sep 3 0:00 0 S
528
529# From Ephraim Silverberg <ephraim@cs.huji.ac.il>
530# (1997-03-04, 1998-03-16, 1998-12-28, and 2000-01-17):
531
532# According to the Office of the Secretary General of the Ministry of
533# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
534# One thing is entrenched in law, however: that there must be at least 150
535# days of daylight savings time annually. From 1993-1998, the change to
536# daylight savings time was on a Friday morning from midnight IST to
537# 1 a.m IDT; up until 1998, the change back to standard time was on a
538# Saturday night from midnight daylight savings time to 11 p.m. standard
539# time. 1996 is an exception to this rule where the change back to standard
540# time took place on Sunday night instead of Saturday night to avoid
541# conflicts with the Jewish New Year. Starting in 1999, the change to
542# daylight savings time will still be on a Friday morning but from
543# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
544# will now also be on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
545# 1999 only. In the years from 2000 to 2002, the change back will be from
546# 2 a.m. IDT to 1 a.m. IST the morning after the Jewish festival of
547# Shmini Atzeret (i.e. the morning of the 23rd of Tishrei in the lunar
548# Hebrew calendar).
549
550# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
551Rule Zion 1989 only - Apr 30 0:00 1:00 D
552Rule Zion 1989 only - Sep 3 0:00 0 S
553Rule Zion 1990 only - Mar 25 0:00 1:00 D
554Rule Zion 1990 only - Aug 26 0:00 0 S
555Rule Zion 1991 only - Mar 24 0:00 1:00 D
556Rule Zion 1991 only - Sep 1 0:00 0 S
557Rule Zion 1992 only - Mar 29 0:00 1:00 D
558Rule Zion 1992 only - Sep 6 0:00 0 S
559Rule Zion 1993 only - Apr 2 0:00 1:00 D
560Rule Zion 1993 only - Sep 5 0:00 0 S
561
562# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
563# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
564# calling the office directly at 972-2-6701447 or 972-2-6701448.
565
566# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
567Rule Zion 1994 only - Apr 1 0:00 1:00 D
568Rule Zion 1994 only - Aug 28 0:00 0 S
569Rule Zion 1995 only - Mar 31 0:00 1:00 D
570Rule Zion 1995 only - Sep 3 0:00 0 S
571
572# The dates for 1996 were determined by the Minister of Interior of the
573# time, Haim Ramon. The official announcement regarding 1996-1998
574# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
575#
576# ftp://ftp.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
577#
578# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
579#
580# The official announcements for the years 1997-1999 can be viewed at:
581#
582# ftp://ftp.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
583#
584# where YYYY is the relevant year.
585
586# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
587Rule Zion 1996 only - Mar 15 0:00 1:00 D
588Rule Zion 1996 only - Sep 16 0:00 0 S
589Rule Zion 1997 only - Mar 21 0:00 1:00 D
590Rule Zion 1997 only - Sep 14 0:00 0 S
591Rule Zion 1998 only - Mar 20 0:00 1:00 D
592Rule Zion 1998 only - Sep 6 0:00 0 S
593Rule Zion 1999 only - Apr 2 2:00 1:00 D
594Rule Zion 1999 only - Sep 3 2:00 0 S
595
596# Minister of Interior, Natan Sharansky, has announced the dates for
597# the years 2000-2002. However, sources inside the ministry have noted
598# that the end date of 2000 and both dates of 2001-2002 should be regarded
599# as tentative pending final approval.
600#
601# The official announcement for the years 2000-2002 can be viewed at:
602#
603# ftp://ftp.huji.ac.il/pub/tz/announcements/2000-2002.ps.gz
604
605# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
606Rule Zion 2000 only - Apr 14 2:00 1:00 D
607Rule Zion 2000 only - Oct 22 2:00 0 S
608Rule Zion 2001 only - Apr 6 2:00 1:00 D
609Rule Zion 2001 only - Oct 10 2:00 0 S
610Rule Zion 2002 only - Mar 29 2:00 1:00 D
611Rule Zion 2002 only - Sep 29 2:00 0 S
612
613# From Paul Eggert (2000-01-17):
614# Here are guesses for rules after 2002.
615# They are probably wrong, but they are more likely than no DST at all.
616# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
617Rule Zion 2003 max - Mar Fri>=25 2:00 1:00 D
618Rule Zion 2003 max - Oct 1 2:00 0 S
619
620# Zone NAME GMTOFF RULES FORMAT [UNTIL]
621Zone Asia/Jerusalem 2:20:56 - LMT 1880
622 2:20:40 - JMT 1918 # Jerusalem Mean Time?
623 2:00 Zion I%sT
624
625
626###############################################################################
627
628# Japan
629
630# `9:00' and `JST' is from Guy Harris.
631
632# From Paul Eggert <eggert@twinsun.com> (1995-03-06):
633# Today's _Asahi Evening News_ (page 4) reports that Japan had
634# daylight saving between 1948 and 1951, but ``the system was discontinued
635# because the public believed it would lead to longer working hours.''
636# Shanks writes that daylight saving in Japan during those years was as follows:
637# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
638#Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
639#Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
640#Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
641#Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
642# but the only locations using it were US military bases.
643# We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
644
645# From Hideyuki Suzuki (1998-11-09):
646# 'Tokyo' usually stands for the former location of Tokyo Astronomical
647# Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
648# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
649# edited by National Astronomical Observatory of Japan....
650# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
651# The law is enacted on 1886-07-07.
652
653# From Hideyuki Suzuki (1998-11-16):
654# The ordinance No. 51 (1886) established "standard time" in Japan,
655# which stands for the time on E 135 degree.
656# In the ordinance No. 167 (1895), "standard time" was renamed to "central
657# standard time". And the same ordinance also established "western standard
658# time", which stands for the time on E 120 degree.... But "western standard
659# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
660# 167, there is no mention regarding for what place western standard time is
661# standard....
662#
663# I wrote "ordinance" above, but I don't know how to translate.
664# In Japanese it's "chokurei", which means ordinance from emperor.
665
666# Shanks claims JST in use since 1896, and that a few places (e.g. Ishigaki)
667# use +0800; go with Suzuki. Guess that all ordinances took effect on Jan 1.
668
669# Zone NAME GMTOFF RULES FORMAT [UNTIL]
670Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
671 9:00 - JST 1896
672 9:00 - CJT 1938
673 9:00 - JST
674# Since 1938, all Japanese possessions have been like Asia/Tokyo.
675
676# Jordan
677#
678# From <a href="http://star.arabia.com/990701/JO9.html">
679# Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09):
680# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
681# in accordance with the government's decision to implement summer time
682# all year round.
683#
684# From <a href="http://star.arabia.com/990930/JO9.html">
685# Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09):
686# Winter time starts today Thursday, 30 September. Clocks will be turned back
687# by one hour. This is the latest government decision and it's final!
688# The decision was taken because of the increase in working hours in
689# government's departments from six to seven hours.
690#
691# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
692Rule Jordan 1973 only - Jun 6 0:00 1:00 S
693Rule Jordan 1973 1975 - Oct 1 0:00 0 -
694Rule Jordan 1974 1977 - May 1 0:00 1:00 S
695Rule Jordan 1976 only - Nov 1 0:00 0 -
696Rule Jordan 1977 only - Oct 1 0:00 0 -
697Rule Jordan 1978 only - Apr 30 0:00 1:00 S
698Rule Jordan 1978 only - Sep 30 0:00 0 -
699Rule Jordan 1985 only - Apr 1 0:00 1:00 S
700Rule Jordan 1985 only - Oct 1 0:00 0 -
701Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
702Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
703Rule Jordan 1989 only - May 8 0:00 1:00 S
704Rule Jordan 1990 only - Apr 27 0:00 1:00 S
705Rule Jordan 1991 only - Apr 17 0:00 1:00 S
706Rule Jordan 1991 only - Sep 27 0:00 0 -
707Rule Jordan 1992 only - Apr 10 0:00 1:00 S
708Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
709Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
710Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
711Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
712Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
713Rule Jordan 1999 max - Sep lastThu 0:00s 0 -
714Rule Jordan 2000 max - Mar lastThu 0:00s 1:00 S
715# Zone NAME GMTOFF RULES FORMAT [UNTIL]
716Zone Asia/Amman 2:23:44 - LMT 1931
717 2:00 Jordan EE%sT
718
719# Kazakhstan
720# From Paul Eggert (1996-11-22):
721# Andrew Evtichov <evti@chevron.com> (1996-04-13) writes that Kazakhstan
722# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
723# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
724# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
725# IATA SSIM mentions a third time zone in Kazakhstan.
726#
727# Zone NAME GMTOFF RULES FORMAT [UNTIL]
728Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
729 5:00 - ALMT 1957 Mar # Alma-Ata Time
730 6:00 RussiaAsia ALM%sT 1991 Mar 31 2:00s
731 5:00 1:00 ALMST 1991 Sep 29 2:00s
732 5:00 - ALMT 1992 Jan 19 2:00s
733 6:00 E-EurAsia ALM%sT
734Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
735 4:00 - AKT 1957 Mar # Aktyubinsk Time
736 5:00 RussiaAsia AK%sT 1991 Mar 31 2:00s
737 4:00 1:00 AKTST 1991 Sep 29 2:00s
738 4:00 - AQTT 1992 Jan 19 2:00s # Aqtobe Time
739 5:00 E-EurAsia AQT%sT
740Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 # or Aktau
741 4:00 - SHET 1957 Mar # Fort Shevchenko Time
742 5:00 RussiaAsia SHE%sT 1991 Mar 31 2:00s
743 4:00 1:00 AQTST 1991 Sep 29 2:00s
744 4:00 - AQTT 1992 Jan 19 2:00s # Aqtau Time
745 5:00 E-EurAsia AQT%sT 1995 Sep lastSun
746 4:00 E-EurAsia AQT%sT
747
748# Kirgizstan
749# Transitions through 1991 are from Shanks.
750# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
751Rule Kirgiz 1992 1996 - Apr Sun>=7 0:00 1:00 S
752Rule Kirgiz 1992 1996 - Sep lastSun 0:00 0 -
753Rule Kirgiz 1997 max - Mar lastSun 2:30 1:00 S
754Rule Kirgiz 1997 max - Oct lastSun 2:30 0 -
755# Zone NAME GMTOFF RULES FORMAT [UNTIL]
756Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
757 5:00 - FRUT 1930 Jun 21 # Frunze Time
758 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
759 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
760 5:00 Kirgiz KG%sT # Kirgizstan Time
761
762###############################################################################
763
764# Korea (North and South)
765
766# From Guy Harris:
767# According to someone at the Korean Times in San Francisco,
768# Daylight Savings Time was not observed until 1987. He did not know
769# at what time of day DST starts or ends.
770
771# From Shanks:
772# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
773Rule ROK 1960 only - May 15 0:00 1:00 D
774Rule ROK 1960 only - Sep 13 0:00 0 S
775Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
776Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
777
778# Zone NAME GMTOFF RULES FORMAT [UNTIL]
779Zone Asia/Seoul 8:27:52 - LMT 1890
780 8:30 - KST 1904 Dec
781 9:00 - KST 1928
782 8:30 - KST 1932
783 9:00 - KST 1954 Mar 21
784 8:00 ROK K%sT 1961 Aug 10
785 8:30 - KST 1968 Oct
786 9:00 ROK K%sT
787Zone Asia/Pyongyang 8:23:00 - LMT 1890
788 8:30 - KST 1904 Dec
789 9:00 - KST 1928
790 8:30 - KST 1932
791 9:00 - KST 1954 Mar 21
792 8:00 - KST 1961 Aug 10
793 9:00 - KST
794
795###############################################################################
796
797# Kuwait
798# Zone NAME GMTOFF RULES FORMAT [UNTIL]
799Zone Asia/Kuwait 3:11:56 - LMT 1950
800 3:00 - AST
801
802# Laos
803# Zone NAME GMTOFF RULES FORMAT [UNTIL]
804Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9
805 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
806 7:00 - ICT 1912 May
807 8:00 - ICT 1931 May
808 7:00 - ICT
809
810# Lebanon
811# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
812Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
813Rule Lebanon 1920 only - Oct 25 0:00 0 -
814Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
815Rule Lebanon 1921 only - Oct 3 0:00 0 -
816Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
817Rule Lebanon 1922 only - Oct 8 0:00 0 -
818Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
819Rule Lebanon 1923 only - Sep 16 0:00 0 -
820Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
821Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
822Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
823Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
824Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
825Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
826Rule Lebanon 1978 only - Sep 30 0:00 0 -
827Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
828Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
829Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
830Rule Lebanon 1989 only - May 10 0:00 1:00 S
831Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
832Rule Lebanon 1992 only - Oct 4 0:00 0 -
833Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
834Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
835Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
836# Zone NAME GMTOFF RULES FORMAT [UNTIL]
837Zone Asia/Beirut 2:22:00 - LMT 1880
838 2:00 Lebanon EE%sT
839
840# Malaysia
841# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
842Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS
843Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
844# Zone NAME GMTOFF RULES FORMAT [UNTIL]
845Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
846 6:55:24 - SMT 1905 Jun # Singapore Mean Time
847 7:00 - MALT 1933 # Malaya Time
848 7:20 - MALT 1942 Feb 15
849 9:00 - JST 1945 Sep 2
850 7:20 - MALT 1950
851 7:30 - MALT 1982 May
852 8:00 - MYT # Malaysia Time
853Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
854 7:30 - BORT 1933 # Borneo Time
855 8:00 NBorneo BOR%sT 1942
856 9:00 - JST 1945 Sep 2
857 8:00 - BORT 1982 May
858 8:00 - MYT
859
860# Maldives
861# Zone NAME GMTOFF RULES FORMAT [UNTIL]
862Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
863 4:54:00 - MMT 1960 # Male Mean Time
864 5:00 - MVT # Maldives Time
865
866# Mongolia
867
868# Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
869# Standard Time Zones of the World (1997-01)
870# both say that it has just one.
871
872# From Oscar van Vlijmen (1999-12-11):
873# <a href="http://www.mongoliatourism.gov.mn/general.htm">
874# General Information Mongolia
875# </a> (1999-09)
876# "Time: Mongolia has two time zones. Three westernmost provinces of
877# Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and
878# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
879# eight hours."
880
881# From Rives McDow (1999-12-13):
882# Mongolia discontinued the use of daylight savings time in 1999; 1998
883# being the last year it was implemented. The dates of implementation I am
884# unsure of, but most probably it was similar to Russia, except for the time
885# of implementation may have been different....
886# Some maps in the past have indicated that there was an additional time
887# zone in the eastern part of Mongolia, including the provinces of Dornod,
888# Suhbaatar, and possibly Khentij.
889
890# From Paul Eggert (1999-12-15):
891# For now, we'll comment out the east zone (Choybalsan)
892# and use Shanks's and the IATA's data for the daylight-saving rules.
893# Naming and spelling is tricky in Mongolia.
894# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
895# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
896# and sometimes Jirgalanta (with variant spellings), but the name Hovd
897# is good enough for our purposes.
898
899# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
900Rule Mongol 1981 1984 - Apr 1 0:00 1:00 S
901Rule Mongol 1981 1984 - Oct 1 0:00 0 -
902Rule Mongol 1985 1990 - Mar lastSun 2:00 1:00 S
903Rule Mongol 1985 1990 - Sep lastSun 3:00 0 -
904Rule Mongol 1991 1998 - Mar lastSun 0:00 1:00 S
905Rule Mongol 1991 1995 - Sep lastSun 0:00 0 -
906# IATA SSIM (1996-09) says 1996-10-25; go with Shanks.
907Rule Mongol 1996 only - Oct lastSun 0:00 0 -
908Rule Mongol 1997 1998 - Sep lastSun 0:00 0 -
909# IATA SSIM (1999-09) says Mongolia no longer observes DST.
910
911# Zone NAME GMTOFF RULES FORMAT [UNTIL]
912Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
913 6:00 - HOVT 1978 # Hovd Time
914 7:00 Mongol HOV%sT
915Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
916 7:00 - ULAT 1978 # Ulaanbaatar Time
917 8:00 Mongol ULA%sT
918# We're not sure about this entry yet, so we'll omit it for now.
919#Zone Asia/Choybalsan 7:38:00 - LMT 1905 Aug
920# 8:00 - CHOT 1978 # Choybalsan Time
921# 9:00 Mongol CHO%sT 19??
922# 8:00 Mongol ULA%sT
923
924# Nepal
925# Zone NAME GMTOFF RULES FORMAT [UNTIL]
926Zone Asia/Katmandu 5:41:16 - LMT 1920
927 5:30 - IST 1986
928 5:45 - NPT # Nepal Time
929
930# Oman
931# Zone NAME GMTOFF RULES FORMAT [UNTIL]
932Zone Asia/Muscat 3:54:20 - LMT 1920
933 4:00 - GST
934
935# Pakistan
936# Zone NAME GMTOFF RULES FORMAT [UNTIL]
937Zone Asia/Karachi 4:28:12 - LMT 1907
938 5:30 - IST 1942 Sep
939 5:30 1:00 IST 1945 Oct 15
940 5:30 - IST 1951 Sep 30
941 5:00 - KART 1971 Mar 26 # Karachi Time
942 5:00 - PKT # Pakistan Time
943
944# Palestine
945
946# From Amos Shapir <amos@nsof.co.il> (1998-02-15):
947#
948# From 1917 until 1948-05-15, all of Palestine, including the parts now
949# known as the Gaza Strip and the West Bank, was under British rule.
950# Therefore the rules given for Israel for that period, apply there too...
951#
952# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
953# (except a short occupation by Israel from 1956-11 till 1957-03, but no
954# time zone was affected then). It was never formally annexed to Egypt,
955# though.
956#
957# The rest of Palestine was under Jordanian rule at that time, formally
958# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
959# the country's previous name of "the Hashemite Kingdom of the
960# Trans-Jordan"). So the rules for Jordan for that time apply. Major
961# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
962# East Jerusalem.
963#
964# Both areas were occupied by Israel in June 1967, but not annexed (except
965# for East Jerusalem). They were on Israel time since then; there might
966# have been a Military Governor's order about time zones, but I'm not aware
967# of any (such orders may have been issued semi-annually whenever summer
968# time was in effect, but maybe the legal aspect of time was just neglected).
969#
970# The Palestinian Authority was established in 1993, and got hold of most
971# towns in the West Bank and Gaza by 1995. I know that in order to
972# demonstrate...independence, they have been switching to
973# summer time and back on a different schedule than Israel's, but I don't
974# know when this was started, or what algorithm is used (most likely the
975# Jordanian one).
976#
977# To summarize, the table should probably look something like that:
978#
979# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
980# ------------+-----------+-----------+-----------+-----------
981# Israel | Zion | Zion | Zion | Zion
982# West bank | Zion | Jordan | Zion | Jordan
983# Gaza | Zion | Egypt | Zion | Jordan
984#
985# I guess more info may be available from the PA's web page (if/when they
986# have one).
987
988# From Paul Eggert (1998-02-25):
989# Shanks writes that Gaza did not observe DST until 1957, but we'll go
990# with Shapir and assume that it observed DST from 1940 through 1947,
991# and that it used Jordanian rules starting in 1996.
992# We don't yet need a separate entry for the West Bank, since
993# the only differences between it and Gaza that we know about
994# occurred before our cutoff date of 1970.
995# However, as we get more information, we may need to add entries
996# for parts of the West Bank as they transitioned from Israel's rules
997# to Palestine's rules. If you have more info about this, please
998# send it to tz@elsie.nci.nih.gov for incorporation into future editions.
999
1000# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
1001# forwarded by Ephraim Silverberg:
1002#
1003# Despite the fact that Israel changed over to daylight savings time
1004# last week, the PLO Authority (PA) has decided not to turn its clocks
1005# one-hour forward at this time. As a sign of independence from Israeli rule,
1006# the PA has decided to implement DST in April.
1007
1008# From Paul Eggert (1999-09-20):
1009# Daoud Kuttab writes in
1010# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
1011# Holiday havoc
1012# </a> (Jerusalem Post, 1999-04-22) that
1013# the Palestinian National Authority changed to DST on 1999-04-15.
1014# I vaguely recall that they switch back in October (sorry, forgot the source).
1015# For now, let's assume that the spring switch was at 24:00,
1016# and that they switch at 0:00 on the 3rd Fridays of April and October.
1017
1018# The rules for Egypt are stolen from the `africa' file.
1019# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1020Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
1021Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
1022Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
1023Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
1024Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
1025Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
1026
1027Rule Palestine 1999 max - Apr Fri>=15 0:00 1:00 S
1028Rule Palestine 1999 max - Oct Fri>=15 0:00 0 -
1029
1030# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1031Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
1032 2:00 Zion EET 1948 May 15
1033 2:00 EgyptAsia EE%sT 1967 Jun 5
1034 2:00 Zion I%sT 1996
1035 2:00 Jordan EE%sT 1999
1036 2:00 Palestine EE%sT
1037
1038# Paracel Is
1039# no information
1040
1041# Philippines
1042# Howse writes (p 153) that until 1844 the Philippines kept American date.
1043# The rest of this data is from Shanks.
1044# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1045Rule Phil 1936 only - Nov 1 0:00 1:00 S
1046Rule Phil 1937 only - Feb 1 0:00 0 -
1047Rule Phil 1954 only - Apr 12 0:00 1:00 S
1048Rule Phil 1954 only - Jul 1 0:00 0 -
1049Rule Phil 1978 only - Mar 22 0:00 1:00 S
1050Rule Phil 1978 only - Sep 21 0:00 0 -
1051# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1052Zone Asia/Manila -15:56:00 - LMT 1844
1053 8:04:00 - LMT 1899 May 11
1054 8:00 Phil PH%sT 1942 May
1055 9:00 - JST 1944 Nov
1056 8:00 Phil PH%sT
1057
1058# Qatar
1059# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1060Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah
1061 4:00 - GST 1972 Jun
1062 3:00 - AST
1063
1064# Saudi Arabia
1065# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1066Zone Asia/Riyadh 3:06:52 - LMT 1950
1067 3:00 - AST
1068
1069# Singapore
1070# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1071Zone Asia/Singapore 6:55:24 - LMT 1880
1072 6:55:24 - SMT 1905 Jun # Singapore Mean Time
1073 7:00 - MALT 1933 # Malaya Time
1074 7:20 - MALT 1942 Feb 15
1075 9:00 - JST 1945 Sep 2
1076 7:20 - MALT 1950
1077 7:30 - MALT 1965 Aug 9 # independence
1078 7:30 - SGT 1982 May # Singapore Time
1079 8:00 - SGT
1080
1081# Spratly Is
1082# no information
1083
1084# Sri Lanka
1085# From Paul Eggert (1996-09-03):
1086# "Sri Lanka advances clock by an hour to avoid blackout"
1087# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
1088# no longer available as of 1999-08-17)
1089# reported ``the country's standard time will be put forward by one hour at
1090# midnight Friday (1830 GMT) `in the light of the present power crisis'.''
1091#
1092# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
1093# by Shamindra in
1094# <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
1095# Daily News - Hot News Section (1996-10-26)
1096# </a>:
1097# With effect from 12.30 a.m. on 26th October 1996
1098# Sri Lanka will be six (06) hours ahead of GMT.
1099
1100# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1101Zone Asia/Colombo 5:19:24 - LMT 1880
1102 5:19:32 - MMT 1906 # Moratuwa Mean Time
1103 5:30 - IST 1942 Jan 5
1104 5:30 0:30 IHST 1942 Sep
1105 5:30 1:00 IST 1945 Oct 16 2:00
1106 5:30 - IST 1996 May 25 0:00
1107 6:30 - LKT 1996 Oct 26 0:30
1108 6:00 - LKT
1109
1110# Syria
1111# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1112Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
1113Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
1114Rule Syria 1962 only - Apr 29 2:00 1:00 S
1115Rule Syria 1962 only - Oct 1 2:00 0 -
1116Rule Syria 1963 1965 - May 1 2:00 1:00 S
1117Rule Syria 1963 only - Sep 30 2:00 0 -
1118Rule Syria 1964 only - Oct 1 2:00 0 -
1119Rule Syria 1965 only - Sep 30 2:00 0 -
1120Rule Syria 1966 only - Apr 24 2:00 1:00 S
1121Rule Syria 1966 1976 - Oct 1 2:00 0 -
1122Rule Syria 1967 1978 - May 1 2:00 1:00 S
1123Rule Syria 1977 1978 - Sep 1 2:00 0 -
1124Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
1125Rule Syria 1983 1984 - Oct 1 2:00 0 -
1126Rule Syria 1986 only - Feb 16 2:00 1:00 S
1127Rule Syria 1986 only - Oct 9 2:00 0 -
1128Rule Syria 1987 only - Mar 1 2:00 1:00 S
1129Rule Syria 1987 1988 - Oct 31 2:00 0 -
1130Rule Syria 1988 only - Mar 15 2:00 1:00 S
1131Rule Syria 1989 only - Mar 31 2:00 1:00 S
1132Rule Syria 1989 only - Oct 1 2:00 0 -
1133Rule Syria 1990 only - Apr 1 2:00 1:00 S
1134Rule Syria 1990 only - Sep 30 2:00 0 -
1135Rule Syria 1991 only - Apr 1 0:00 1:00 S
1136Rule Syria 1991 1992 - Oct 1 0:00 0 -
1137Rule Syria 1992 only - Apr 8 0:00 1:00 S
1138Rule Syria 1993 only - Mar 26 0:00 1:00 S
1139Rule Syria 1993 only - Sep 25 0:00 0 -
1140# IATA SSIM (1998-02) says 1998-04-02;
1141# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
1142# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
1143# ignore all these claims and go with Shanks.
1144Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
1145Rule Syria 1994 max - Oct 1 0:00 0 -
1146Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
1147Rule Syria 1999 max - Apr 1 0:00 1:00 S
1148# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1149Zone Asia/Damascus 2:25:12 - LMT 1920
1150 2:00 Syria EE%sT
1151
1152# Tajikistan
1153# From Shanks.
1154# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1155Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
1156 5:00 - DUST 1930 Jun 21 # Dushanbe Time
1157 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
1158 5:00 1:00 DUSST 1991 Sep 9 2:00s
1159 5:00 - TJT # Tajikistan Time
1160
1161# Thailand
1162# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1163Zone Asia/Bangkok 6:42:04 - LMT 1880
1164 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
1165 7:00 - ICT
1166
1167# Turkmenistan
1168# From Shanks.
1169# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1170Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2 # or Ashgabat
1171 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
1172 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
1173 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
1174 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
1175 5:00 - TMT
1176
1177# United Arab Emirates
1178# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1179Zone Asia/Dubai 3:41:12 - LMT 1920
1180 4:00 - GST
1181
1182# Uzbekistan
1183# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1184Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
1185 4:00 - SAMT 1930 Jun 21 # Samarkand Time
1186 5:00 - SAMT 1981 Apr 1
1187 5:00 1:00 SAMST 1981 Oct 1
1188 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 # Tashkent Time
1189 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1190 5:00 RussiaAsia UZ%sT 1992
1191 5:00 RussiaAsia UZ%sT 1993
1192 5:00 - UZT
1193Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
1194 5:00 - TAST 1930 Jun 21 # Tashkent Time
1195 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00s
1196 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1197 5:00 RussiaAsia UZ%sT 1992
1198 5:00 RussiaAsia UZ%sT 1993
1199 5:00 - UZT
1200
1201# Vietnam
1202# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
1203# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
1204# We'll stick with the traditional name for now.
1205# From Shanks:
1206# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1207Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
1208 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1209 7:00 - ICT 1912 May
1210 8:00 - ICT 1931 May
1211 7:00 - ICT
1212
1213# Yemen
1214# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1215Zone Asia/Aden 3:00:48 - LMT 1950
1216 3:00 - AST