australasia revision 316349
1# This file is in the public domain, so clarified as of
2# 2009-05-17 by Arthur David Olson.
3
4# This file also includes Pacific islands.
5
6# Notes are at the end of this file
7
8###############################################################################
9
10# Australia
11
12# Please see the notes below for the controversy about "EST" versus "AEST" etc.
13
14# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
15Rule	Aus	1917	only	-	Jan	 1	0:01	1:00	D
16Rule	Aus	1917	only	-	Mar	25	2:00	0	S
17Rule	Aus	1942	only	-	Jan	 1	2:00	1:00	D
18Rule	Aus	1942	only	-	Mar	29	2:00	0	S
19Rule	Aus	1942	only	-	Sep	27	2:00	1:00	D
20Rule	Aus	1943	1944	-	Mar	lastSun	2:00	0	S
21Rule	Aus	1943	only	-	Oct	 3	2:00	1:00	D
22# Go with Whitman and the Australian National Standards Commission, which
23# says W Australia didn't use DST in 1943/1944.  Ignore Whitman's claim that
24# 1944/1945 was just like 1943/1944.
25
26# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
27# Northern Territory
28Zone Australia/Darwin	 8:43:20 -	LMT	1895 Feb
29			 9:00	-	ACST	1899 May
30			 9:30	Aus	AC%sT
31# Western Australia
32#
33# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
34Rule	AW	1974	only	-	Oct	lastSun	2:00s	1:00	D
35Rule	AW	1975	only	-	Mar	Sun>=1	2:00s	0	S
36Rule	AW	1983	only	-	Oct	lastSun	2:00s	1:00	D
37Rule	AW	1984	only	-	Mar	Sun>=1	2:00s	0	S
38Rule	AW	1991	only	-	Nov	17	2:00s	1:00	D
39Rule	AW	1992	only	-	Mar	Sun>=1	2:00s	0	S
40Rule	AW	2006	only	-	Dec	 3	2:00s	1:00	D
41Rule	AW	2007	2009	-	Mar	lastSun	2:00s	0	S
42Rule	AW	2007	2008	-	Oct	lastSun	2:00s	1:00	D
43Zone Australia/Perth	 7:43:24 -	LMT	1895 Dec
44			 8:00	Aus	AW%sT	1943 Jul
45			 8:00	AW	AW%sT
46Zone Australia/Eucla	 8:35:28 -	LMT	1895 Dec
47			 8:45	Aus +0845/+0945	1943 Jul
48			 8:45	AW  +0845/+0945
49
50# Queensland
51#
52# From Alex Livingston (1996-11-01):
53# I have heard or read more than once that some resort islands off the coast
54# of Queensland chose to keep observing daylight-saving time even after
55# Queensland ceased to.
56#
57# From Paul Eggert (1996-11-22):
58# IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman,
59# Hamilton) observed DST for two years after the rest of Queensland stopped.
60# Hamilton is the largest, but there is also a Hamilton in Victoria,
61# so use Lindeman.
62#
63# From J William Piggott (2016-02-20):
64# There is no location named Holiday Islands in Queensland Australia; holiday
65# islands is a colloquial term used globally.  Hayman and Lindeman are at the
66# north and south extremes of the Whitsunday Islands archipelago, and
67# Hamilton is in between; it is reasonable to believe that this time zone
68# applies to all of the Whitsundays.
69# http://www.australia.gov.au/about-australia/australian-story/austn-islands
70#
71# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
72Rule	AQ	1971	only	-	Oct	lastSun	2:00s	1:00	D
73Rule	AQ	1972	only	-	Feb	lastSun	2:00s	0	S
74Rule	AQ	1989	1991	-	Oct	lastSun	2:00s	1:00	D
75Rule	AQ	1990	1992	-	Mar	Sun>=1	2:00s	0	S
76Rule	Holiday	1992	1993	-	Oct	lastSun	2:00s	1:00	D
77Rule	Holiday	1993	1994	-	Mar	Sun>=1	2:00s	0	S
78Zone Australia/Brisbane	10:12:08 -	LMT	1895
79			10:00	Aus	AE%sT	1971
80			10:00	AQ	AE%sT
81Zone Australia/Lindeman  9:55:56 -	LMT	1895
82			10:00	Aus	AE%sT	1971
83			10:00	AQ	AE%sT	1992 Jul
84			10:00	Holiday	AE%sT
85
86# South Australia
87# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
88Rule	AS	1971	1985	-	Oct	lastSun	2:00s	1:00	D
89Rule	AS	1986	only	-	Oct	19	2:00s	1:00	D
90Rule	AS	1987	2007	-	Oct	lastSun	2:00s	1:00	D
91Rule	AS	1972	only	-	Feb	27	2:00s	0	S
92Rule	AS	1973	1985	-	Mar	Sun>=1	2:00s	0	S
93Rule	AS	1986	1990	-	Mar	Sun>=15	2:00s	0	S
94Rule	AS	1991	only	-	Mar	3	2:00s	0	S
95Rule	AS	1992	only	-	Mar	22	2:00s	0	S
96Rule	AS	1993	only	-	Mar	7	2:00s	0	S
97Rule	AS	1994	only	-	Mar	20	2:00s	0	S
98Rule	AS	1995	2005	-	Mar	lastSun	2:00s	0	S
99Rule	AS	2006	only	-	Apr	2	2:00s	0	S
100Rule	AS	2007	only	-	Mar	lastSun	2:00s	0	S
101Rule	AS	2008	max	-	Apr	Sun>=1	2:00s	0	S
102Rule	AS	2008	max	-	Oct	Sun>=1	2:00s	1:00	D
103# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
104Zone Australia/Adelaide	9:14:20 -	LMT	1895 Feb
105			9:00	-	ACST	1899 May
106			9:30	Aus	AC%sT	1971
107			9:30	AS	AC%sT
108
109# Tasmania
110#
111# From Paul Eggert (2005-08-16):
112# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml
113# says King Island didn't observe DST from WWII until late 1971.
114#
115# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
116Rule	AT	1967	only	-	Oct	Sun>=1	2:00s	1:00	D
117Rule	AT	1968	only	-	Mar	lastSun	2:00s	0	S
118Rule	AT	1968	1985	-	Oct	lastSun	2:00s	1:00	D
119Rule	AT	1969	1971	-	Mar	Sun>=8	2:00s	0	S
120Rule	AT	1972	only	-	Feb	lastSun	2:00s	0	S
121Rule	AT	1973	1981	-	Mar	Sun>=1	2:00s	0	S
122Rule	AT	1982	1983	-	Mar	lastSun	2:00s	0	S
123Rule	AT	1984	1986	-	Mar	Sun>=1	2:00s	0	S
124Rule	AT	1986	only	-	Oct	Sun>=15	2:00s	1:00	D
125Rule	AT	1987	1990	-	Mar	Sun>=15	2:00s	0	S
126Rule	AT	1987	only	-	Oct	Sun>=22	2:00s	1:00	D
127Rule	AT	1988	1990	-	Oct	lastSun	2:00s	1:00	D
128Rule	AT	1991	1999	-	Oct	Sun>=1	2:00s	1:00	D
129Rule	AT	1991	2005	-	Mar	lastSun	2:00s	0	S
130Rule	AT	2000	only	-	Aug	lastSun	2:00s	1:00	D
131Rule	AT	2001	max	-	Oct	Sun>=1	2:00s	1:00	D
132Rule	AT	2006	only	-	Apr	Sun>=1	2:00s	0	S
133Rule	AT	2007	only	-	Mar	lastSun	2:00s	0	S
134Rule	AT	2008	max	-	Apr	Sun>=1	2:00s	0	S
135# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
136Zone Australia/Hobart	9:49:16	-	LMT	1895 Sep
137			10:00	-	AEST	1916 Oct  1  2:00
138			10:00	1:00	AEDT	1917 Feb
139			10:00	Aus	AE%sT	1967
140			10:00	AT	AE%sT
141Zone Australia/Currie	9:35:28	-	LMT	1895 Sep
142			10:00	-	AEST	1916 Oct  1  2:00
143			10:00	1:00	AEDT	1917 Feb
144			10:00	Aus	AE%sT	1971 Jul
145			10:00	AT	AE%sT
146
147# Victoria
148# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
149Rule	AV	1971	1985	-	Oct	lastSun	2:00s	1:00	D
150Rule	AV	1972	only	-	Feb	lastSun	2:00s	0	S
151Rule	AV	1973	1985	-	Mar	Sun>=1	2:00s	0	S
152Rule	AV	1986	1990	-	Mar	Sun>=15	2:00s	0	S
153Rule	AV	1986	1987	-	Oct	Sun>=15	2:00s	1:00	D
154Rule	AV	1988	1999	-	Oct	lastSun	2:00s	1:00	D
155Rule	AV	1991	1994	-	Mar	Sun>=1	2:00s	0	S
156Rule	AV	1995	2005	-	Mar	lastSun	2:00s	0	S
157Rule	AV	2000	only	-	Aug	lastSun	2:00s	1:00	D
158Rule	AV	2001	2007	-	Oct	lastSun	2:00s	1:00	D
159Rule	AV	2006	only	-	Apr	Sun>=1	2:00s	0	S
160Rule	AV	2007	only	-	Mar	lastSun	2:00s	0	S
161Rule	AV	2008	max	-	Apr	Sun>=1	2:00s	0	S
162Rule	AV	2008	max	-	Oct	Sun>=1	2:00s	1:00	D
163# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
164Zone Australia/Melbourne 9:39:52 -	LMT	1895 Feb
165			10:00	Aus	AE%sT	1971
166			10:00	AV	AE%sT
167
168# New South Wales
169# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
170Rule	AN	1971	1985	-	Oct	lastSun	2:00s	1:00	D
171Rule	AN	1972	only	-	Feb	27	2:00s	0	S
172Rule	AN	1973	1981	-	Mar	Sun>=1	2:00s	0	S
173Rule	AN	1982	only	-	Apr	Sun>=1	2:00s	0	S
174Rule	AN	1983	1985	-	Mar	Sun>=1	2:00s	0	S
175Rule	AN	1986	1989	-	Mar	Sun>=15	2:00s	0	S
176Rule	AN	1986	only	-	Oct	19	2:00s	1:00	D
177Rule	AN	1987	1999	-	Oct	lastSun	2:00s	1:00	D
178Rule	AN	1990	1995	-	Mar	Sun>=1	2:00s	0	S
179Rule	AN	1996	2005	-	Mar	lastSun	2:00s	0	S
180Rule	AN	2000	only	-	Aug	lastSun	2:00s	1:00	D
181Rule	AN	2001	2007	-	Oct	lastSun	2:00s	1:00	D
182Rule	AN	2006	only	-	Apr	Sun>=1	2:00s	0	S
183Rule	AN	2007	only	-	Mar	lastSun	2:00s	0	S
184Rule	AN	2008	max	-	Apr	Sun>=1	2:00s	0	S
185Rule	AN	2008	max	-	Oct	Sun>=1	2:00s	1:00	D
186# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
187Zone Australia/Sydney	10:04:52 -	LMT	1895 Feb
188			10:00	Aus	AE%sT	1971
189			10:00	AN	AE%sT
190Zone Australia/Broken_Hill 9:25:48 -	LMT	1895 Feb
191			10:00	-	AEST	1896 Aug 23
192			9:00	-	ACST	1899 May
193			9:30	Aus	AC%sT	1971
194			9:30	AN	AC%sT	2000
195			9:30	AS	AC%sT
196
197# Lord Howe Island
198# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
199Rule	LH	1981	1984	-	Oct	lastSun	2:00	1:00	D
200Rule	LH	1982	1985	-	Mar	Sun>=1	2:00	0	S
201Rule	LH	1985	only	-	Oct	lastSun	2:00	0:30	D
202Rule	LH	1986	1989	-	Mar	Sun>=15	2:00	0	S
203Rule	LH	1986	only	-	Oct	19	2:00	0:30	D
204Rule	LH	1987	1999	-	Oct	lastSun	2:00	0:30	D
205Rule	LH	1990	1995	-	Mar	Sun>=1	2:00	0	S
206Rule	LH	1996	2005	-	Mar	lastSun	2:00	0	S
207Rule	LH	2000	only	-	Aug	lastSun	2:00	0:30	D
208Rule	LH	2001	2007	-	Oct	lastSun	2:00	0:30	D
209Rule	LH	2006	only	-	Apr	Sun>=1	2:00	0	S
210Rule	LH	2007	only	-	Mar	lastSun	2:00	0	S
211Rule	LH	2008	max	-	Apr	Sun>=1	2:00	0	S
212Rule	LH	2008	max	-	Oct	Sun>=1	2:00	0:30	D
213Zone Australia/Lord_Howe 10:36:20 -	LMT	1895 Feb
214			10:00	-	AEST	1981 Mar
215			10:30	LH	+1030/+1130 1985 Jul
216			10:30	LH	+1030/+11
217
218# Australian miscellany
219#
220# Ashmore Is, Cartier
221# no indigenous inhabitants; only seasonal caretakers
222# no times are set
223#
224# Coral Sea Is
225# no indigenous inhabitants; only meteorologists
226# no times are set
227#
228# Macquarie
229# Permanent occupation (scientific station) 1911-1915 and since 25 March 1948;
230# sealing and penguin oil station operated Nov 1899 to Apr 1919.  See the
231# Tasmania Parks & Wildlife Service history of sealing at Macquarie Island
232# http://www.parks.tas.gov.au/index.aspx?base=1828
233# http://www.parks.tas.gov.au/index.aspx?base=1831
234# Guess that it was like Australia/Hobart while inhabited before 2010.
235#
236# From Steffen Thorsen (2010-03-10):
237# We got these changes from the Australian Antarctic Division:
238# - Macquarie Island will stay on UTC+11 for winter and therefore not
239# switch back from daylight savings time when other parts of Australia do
240# on 4 April.
241#
242# From Arthur David Olson (2013-05-23):
243# The 1919 transition is overspecified below so pre-2013 zics
244# will produce a binary file with an [A]EST-type as the first 32-bit type;
245# this is required for correct handling of times before 1916 by
246# pre-2013 versions of localtime.
247Zone Antarctica/Macquarie 0	-	-00	1899 Nov
248			10:00	-	AEST	1916 Oct  1  2:00
249			10:00	1:00	AEDT	1917 Feb
250			10:00	Aus	AE%sT	1919 Apr  1  0:00s
251			0	-	-00	1948 Mar 25
252			10:00	Aus	AE%sT	1967
253			10:00	AT	AE%sT	2010 Apr  4  3:00
254			11:00	-	+11
255
256# Christmas
257# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
258Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
259			7:00	-	+07
260
261# Cocos (Keeling) Is
262# These islands were ruled by the Ross family from about 1830 to 1978.
263# We don't know when standard time was introduced; for now, we guess 1900.
264# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
265Zone	Indian/Cocos	6:27:40	-	LMT	1900
266			6:30	-	+0630
267
268
269# Fiji
270
271# Milne gives 11:55:44 for Suva.
272
273# From Alexander Krivenyshev (2009-11-10):
274# According to Fiji Broadcasting Corporation,  Fiji plans to re-introduce DST
275# from November 29th 2009  to April 25th 2010.
276#
277# "Daylight savings to commence this month"
278# http://www.radiofiji.com.fj/fullstory.php?id=23719
279# http://www.worldtimezone.com/dst_news/dst_news_fiji01.html
280
281# From Steffen Thorsen (2009-11-10):
282# The Fiji Government has posted some more details about the approved
283# amendments:
284# http://www.fiji.gov.fj/publish/page_16198.shtml
285
286# From Steffen Thorsen (2010-03-03):
287# The Cabinet in Fiji has decided to end DST about a month early, on
288# 2010-03-28 at 03:00.
289# The plan is to observe DST again, from 2010-10-24 to sometime in March
290# 2011 (last Sunday a good guess?).
291#
292# Official source:
293# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=1096:3310-cabinet-approves-change-in-daylight-savings-dates&catid=49:cabinet-releases&Itemid=166
294#
295# A bit more background info here:
296# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
297
298# From Alexander Krivenyshev (2010-10-24):
299# According to Radio Fiji and Fiji Times online, Fiji will end DST 3
300# weeks earlier than expected - on March 6, 2011, not March 27, 2011...
301# Here is confirmation from Government of the Republic of the Fiji Islands,
302# Ministry of Information (fiji.gov.fj) web site:
303# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155
304# http://www.worldtimezone.com/dst_news/dst_news_fiji04.html
305
306# From Steffen Thorsen (2011-10-03):
307# Now the dates have been confirmed, and at least our start date
308# assumption was correct (end date was one week wrong).
309#
310# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-saving-starts-in-fiji&catid=71:press-releases&Itemid=155
311# which says
312# Members of the public are reminded to change their time to one hour in
313# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to
314# 2am on February 26 next year.
315
316# From Ken Rylander (2011-10-24)
317# Another change to the Fiji DST end date. In the TZ database the end date for
318# Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22.
319#
320# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=5017:amendments-to-daylight-savings&catid=71:press-releases&Itemid=155
321# states:
322#
323# The end of daylight saving scheduled initially for the 26th of February 2012
324# has been brought forward to the 22nd of January 2012.
325# The commencement of daylight saving will remain unchanged and start
326# on the  23rd of October, 2011.
327
328# From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen:
329# The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate
330# today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st
331# October 2012 and end at 3 am on Sunday 20th January 2013.
332# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155
333
334# From the Fijian Government Media Center (2013-08-30) via David Wheeler:
335# Fiji will start daylight savings on Sunday 27th October, 2013 ...
336# move clocks forward by one hour from 2am
337# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx
338
339# From Steffen Thorsen (2013-01-10):
340# Fiji will end DST on 2014-01-19 02:00:
341# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx
342
343# From Ken Rylander (2014-10-20):
344# DST will start Nov. 2 this year.
345# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-NOVEMBER-2ND.aspx
346
347# From a government order dated 2015-08-26 and published as Legal Notice No. 77
348# in the Government of Fiji Gazette Supplement No. 24 (2015-08-28),
349# via Ken Rylander (2015-09-02):
350# the daylight saving period is 1 hour in advance of the standard time
351# commencing at 2.00 am on Sunday 1st November, 2015 and ending at
352# 3.00 am on Sunday 17th January, 2016.
353
354# From Raymond Kumar (2016-10-04):
355# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-6th-NOVEMBER,-2016.aspx
356# "Fiji's daylight savings will begin on Sunday, 6 November 2016, when
357# clocks go forward an hour at 2am to 3am....  Daylight Saving will
358# end at 3.00am on Sunday 15th January 2017."
359
360# From Paul Eggert (2016-10-03):
361# For now, guess DST from 02:00 the first Sunday in November to
362# 03:00 the third Sunday in January.  Although ad hoc, it matches
363# transitions since late 2014 and seems more likely to match future
364# practice than guessing no DST.
365
366# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
367Rule	Fiji	1998	1999	-	Nov	Sun>=1	2:00	1:00	S
368Rule	Fiji	1999	2000	-	Feb	lastSun	3:00	0	-
369Rule	Fiji	2009	only	-	Nov	29	2:00	1:00	S
370Rule	Fiji	2010	only	-	Mar	lastSun	3:00	0	-
371Rule	Fiji	2010	2013	-	Oct	Sun>=21	2:00	1:00	S
372Rule	Fiji	2011	only	-	Mar	Sun>=1	3:00	0	-
373Rule	Fiji	2012	2013	-	Jan	Sun>=18	3:00	0	-
374Rule	Fiji	2014	only	-	Jan	Sun>=18	2:00	0	-
375Rule	Fiji	2014	max	-	Nov	Sun>=1	2:00	1:00	S
376Rule	Fiji	2015	max	-	Jan	Sun>=15	3:00	0	-
377# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
378Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
379			12:00	Fiji	+12/+13
380
381# French Polynesia
382# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
383Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct # Rikitea
384			 -9:00	-	-09
385Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
386			 -9:30	-	-0930
387Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct # Papeete
388			-10:00	-	-10
389# Clipperton (near North America) is administered from French Polynesia;
390# it is uninhabited.
391
392# Guam
393# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
394Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
395			 9:39:00 -	LMT	1901        # Agana
396			10:00	-	GST	2000 Dec 23 # Guam
397			10:00	-	ChST	# Chamorro Standard Time
398Link Pacific/Guam Pacific/Saipan # N Mariana Is
399
400# Kiribati
401# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
402Zone Pacific/Tarawa	 11:32:04 -	LMT	1901 # Bairiki
403			 12:00	-	+12
404Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
405			-12:00	-	-12	1979 Oct
406			-11:00	-	-11	1995
407			 13:00	-	+13
408Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
409			-10:40	-	-1040	1979 Oct
410			-10:00	-	-10	1995
411			 14:00	-	+14
412
413# N Mariana Is
414# See Pacific/Guam.
415
416# Marshall Is
417# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
418Zone Pacific/Majuro	11:24:48 -	LMT	1901
419			11:00	-	+11	1969 Oct
420			12:00	-	+12
421Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
422			11:00	-	+11	1969 Oct
423			-12:00	-	-12	1993 Aug 20
424			12:00	-	+12
425
426# Micronesia
427# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
428Zone Pacific/Chuuk	10:07:08 -	LMT	1901
429			10:00	-	+10
430Zone Pacific/Pohnpei	10:32:52 -	LMT	1901 # Kolonia
431			11:00	-	+11
432Zone Pacific/Kosrae	10:51:56 -	LMT	1901
433			11:00	-	+11	1969 Oct
434			12:00	-	+12	1999
435			11:00	-	+11
436
437# Nauru
438# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
439Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15 # Uaobe
440			11:30	-	+1130	1942 Mar 15
441			9:00	-	+09	1944 Aug 15
442			11:30	-	+1130	1979 May
443			12:00	-	+12
444
445# New Caledonia
446# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
447Rule	NC	1977	1978	-	Dec	Sun>=1	0:00	1:00	S
448Rule	NC	1978	1979	-	Feb	27	0:00	0	-
449Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
450# Shanks & Pottenger say the following was at 2:00; go with IATA.
451Rule	NC	1997	only	-	Mar	 2	2:00s	0	-
452# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
453Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13 # Noum��a
454			11:00	NC	+11/+12
455
456
457###############################################################################
458
459# New Zealand
460
461# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
462Rule	NZ	1927	only	-	Nov	 6	2:00	1:00	S
463Rule	NZ	1928	only	-	Mar	 4	2:00	0	M
464Rule	NZ	1928	1933	-	Oct	Sun>=8	2:00	0:30	S
465Rule	NZ	1929	1933	-	Mar	Sun>=15	2:00	0	M
466Rule	NZ	1934	1940	-	Apr	lastSun	2:00	0	M
467Rule	NZ	1934	1940	-	Sep	lastSun	2:00	0:30	S
468Rule	NZ	1946	only	-	Jan	 1	0:00	0	S
469# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
470# convenient single notation for the date and time of this transition
471# so we must duplicate the Rule lines.
472Rule	NZ	1974	only	-	Nov	Sun>=1	2:00s	1:00	D
473Rule	Chatham	1974	only	-	Nov	Sun>=1	2:45s	1:00	D
474Rule	NZ	1975	only	-	Feb	lastSun	2:00s	0	S
475Rule	Chatham	1975	only	-	Feb	lastSun	2:45s	0	S
476Rule	NZ	1975	1988	-	Oct	lastSun	2:00s	1:00	D
477Rule	Chatham	1975	1988	-	Oct	lastSun	2:45s	1:00	D
478Rule	NZ	1976	1989	-	Mar	Sun>=1	2:00s	0	S
479Rule	Chatham	1976	1989	-	Mar	Sun>=1	2:45s	0	S
480Rule	NZ	1989	only	-	Oct	Sun>=8	2:00s	1:00	D
481Rule	Chatham	1989	only	-	Oct	Sun>=8	2:45s	1:00	D
482Rule	NZ	1990	2006	-	Oct	Sun>=1	2:00s	1:00	D
483Rule	Chatham	1990	2006	-	Oct	Sun>=1	2:45s	1:00	D
484Rule	NZ	1990	2007	-	Mar	Sun>=15	2:00s	0	S
485Rule	Chatham	1990	2007	-	Mar	Sun>=15	2:45s	0	S
486Rule	NZ	2007	max	-	Sep	lastSun	2:00s	1:00	D
487Rule	Chatham	2007	max	-	Sep	lastSun	2:45s	1:00	D
488Rule	NZ	2008	max	-	Apr	Sun>=1	2:00s	0	S
489Rule	Chatham	2008	max	-	Apr	Sun>=1	2:45s	0	S
490# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
491Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
492			11:30	NZ	NZ%sT	1946 Jan  1
493			12:00	NZ	NZ%sT
494Zone Pacific/Chatham	12:13:48 -	LMT	1868 Nov  2
495			12:15	-	+1215	1946 Jan  1
496			12:45	Chatham	+1245/+1345
497
498Link Pacific/Auckland Antarctica/McMurdo
499
500# Auckland Is
501# uninhabited; M��ori and Moriori, colonial settlers, pastoralists, sealers,
502# and scientific personnel have wintered
503
504# Campbell I
505# minor whaling stations operated 1909/1914
506# scientific station operated 1941/1995;
507# previously whalers, sealers, pastoralists, and scientific personnel wintered
508# was probably like Pacific/Auckland
509
510# Cook Is
511# From Shanks & Pottenger:
512# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
513Rule	Cook	1978	only	-	Nov	12	0:00	0:30	HS
514Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
515Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	HS
516# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
517Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
518			-10:30	-	-1030	1978 Nov 12
519			-10:00	Cook	-10/-0930
520
521###############################################################################
522
523
524# Niue
525# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
526Zone	Pacific/Niue	-11:19:40 -	LMT	1901        # Alofi
527			-11:20	-	-1120	1951
528			-11:30	-	-1130	1978 Oct  1
529			-11:00	-	-11
530
531# Norfolk
532# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
533Zone	Pacific/Norfolk	11:11:52 -	LMT	1901 # Kingston
534			11:12	-	+1112	1951
535			11:30	-	+1130	1974 Oct 27 02:00
536			11:30	1:00	+1230	1975 Mar  2 02:00
537			11:30	-	+1130	2015 Oct  4 02:00
538			11:00	-	+11
539
540# Palau (Belau)
541# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
542Zone Pacific/Palau	8:57:56 -	LMT	1901 # Koror
543			9:00	-	+09
544
545# Papua New Guinea
546# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
547Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
548			9:48:32	-	PMMT	1895 # Port Moresby Mean Time
549			10:00	-	+10
550#
551# From Paul Eggert (2014-10-13):
552# Base the Bougainville entry on the Arawa-Kieta region, which appears to have
553# the most people even though it was devastated in the Bougainville Civil War.
554#
555# Although Shanks gives 1942-03-15 / 1943-11-01 for UT +09, these dates
556# are apparently rough guesswork from the starts of military campaigns.
557# The World War II entries below are instead based on Arawa-Kieta.
558# The Japanese occupied Kieta in July 1942,
559# according to the Pacific War Online Encyclopedia
560# http://pwencycl.kgbudge.com/B/o/Bougainville.htm
561# and seem to have controlled it until their 1945-08-21 surrender.
562#
563# The Autonomous Region of Bougainville switched from UT +10 to +11
564# on 2014-12-28 at 02:00.  They call +11 "Bougainville Standard Time".
565# See:
566# http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/
567#
568Zone Pacific/Bougainville 10:22:16 -	LMT	1880
569			 9:48:32 -	PMMT	1895
570			10:00	-	+10	1942 Jul
571			 9:00	-	+09	1945 Aug 21
572			10:00	-	+10	2014 Dec 28  2:00
573			11:00	-	+11
574
575# Pitcairn
576# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
577Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901        # Adamstown
578			-8:30	-	-0830	1998 Apr 27  0:00
579			-8:00	-	-08
580
581# American Samoa
582Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
583			-11:22:48 -	LMT	1911
584			-11:00	-	SST	            # S=Samoa
585Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
586
587# Samoa (formerly and also known as Western Samoa)
588
589# From Steffen Thorsen (2009-10-16):
590# We have been in contact with the government of Samoa again, and received
591# the following info:
592#
593# "Cabinet has now approved Daylight Saving to be effected next year
594# commencing from the last Sunday of September 2010 and conclude first
595# Sunday of April 2011."
596#
597# Background info:
598# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
599#
600# Samoa's Daylight Saving Time Act 2009 is available here, but does not
601# contain any dates:
602# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
603
604# From Laupue Raymond Hughes (2010-10-07):
605# Please see
606# http://www.mcil.gov.ws
607# the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday
608# September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight
609# to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks
610# backwards from 1:00am to 12:00am"
611
612# From Laupue Raymond Hughes (2011-03-07):
613# [http://www.mcil.gov.ws/ftcd/daylight_saving_2011.pdf]
614#
615# ... when the standard time strikes the hour of four o'clock (4.00am
616# or 0400 Hours) on the 2nd April 2011, then all instruments used to
617# measure standard time are to be adjusted/changed to three o'clock
618# (3:00am or 0300Hrs).
619
620# From David Z��lke (2011-05-09):
621# Subject: Samoa to move timezone from east to west of international date line
622#
623# http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963
624
625# From Paul Eggert (2014-06-27):
626# The International Date Line Act 2011
627# http://www.parliament.gov.ws/images/ACTS/International_Date_Line_Act__2011_-_Eng.pdf
628# changed Samoa from UT -11 to +13, effective "12 o'clock midnight, on
629# Thursday 29th December 2011".  The International Date Line was adjusted
630# accordingly.
631
632# From Laupue Raymond Hughes (2011-09-02):
633# http://www.mcil.gov.ws/mcil_publications.html
634#
635# here is the official website publication for Samoa DST and dateline change
636#
637# DST
638# Year  End      Time              Start        Time
639# 2011  - - -    - - -             24 September 3:00am to 4:00am
640# 2012  01 April 4:00am to 3:00am  - - -        - - -
641#
642# Dateline Change skip Friday 30th Dec 2011
643# Thursday 29th December 2011	23:59:59 Hours
644# Saturday 31st December 2011	00:00:00 Hours
645#
646# From Nicholas Pereira (2012-09-10):
647# Daylight Saving Time commences on Sunday 30th September 2012 and
648# ends on Sunday 7th of April 2013....
649# http://www.mcil.gov.ws/mcil_publications.html
650#
651# From Paul Eggert (2014-07-08):
652# That web page currently lists transitions for 2012/3 and 2013/4.
653# Assume the pattern instituted in 2012 will continue indefinitely.
654
655# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
656Rule	WS	2010	only	-	Sep	lastSun	0:00	1	D
657Rule	WS	2011	only	-	Apr	Sat>=1	4:00	0	S
658Rule	WS	2011	only	-	Sep	lastSat	3:00	1	D
659Rule	WS	2012	max	-	Apr	Sun>=1	4:00	0	S
660Rule	WS	2012	max	-	Sep	lastSun	3:00	1	D
661# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
662Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
663			-11:26:56 -	LMT	1911
664			-11:30	-	-1130	1950
665			-11:00	WS	-11/-10	2011 Dec 29 24:00
666			 13:00	WS	+13/+14
667
668# Solomon Is
669# excludes Bougainville, for which see Papua New Guinea
670# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
671Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct # Honiara
672			11:00	-	+11
673
674# Tokelau
675#
676# From Gwillim Law (2011-12-29)
677# A correspondent informed me that Tokelau, like Samoa, will be skipping
678# December 31 this year ...
679#
680# From Steffen Thorsen (2012-07-25)
681# ... we double checked by calling hotels and offices based in Tokelau asking
682# about the time there, and they all told a time that agrees with UTC+13....
683# Shanks says UTC-10 from 1901 [but] ... there is a good chance the change
684# actually was to UTC-11 back then.
685#
686# From Paul Eggert (2012-07-25)
687# A Google Books snippet of Appendix to the Journals of the House of
688# Representatives of New Zealand, Session 1948,
689# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
690# was "11 hours slow on G.M.T."  Go with Thorsen and assume Shanks & Pottenger
691# are off by an hour starting in 1901.
692
693# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
694Zone	Pacific/Fakaofo	-11:24:56 -	LMT	1901
695			-11:00	-	-11	2011 Dec 30
696			13:00	-	+13
697
698# Tonga
699# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
700Rule	Tonga	1999	only	-	Oct	 7	2:00s	1:00	S
701Rule	Tonga	2000	only	-	Mar	19	2:00s	0	-
702Rule	Tonga	2000	2001	-	Nov	Sun>=1	2:00	1:00	S
703Rule	Tonga	2001	2002	-	Jan	lastSun	2:00	0	-
704Rule	Tonga	2016	max	-	Nov	Sun>=1	2:00	1:00	S
705Rule	Tonga	2017	max	-	Jan	Sun>=15	3:00	0	-
706# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
707Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
708			12:20	-	+1220	1941
709			13:00	-	+13	1999
710			13:00	Tonga	+13/+14
711
712# Tuvalu
713# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
714Zone Pacific/Funafuti	11:56:52 -	LMT	1901
715			12:00	-	+12
716
717
718# US minor outlying islands
719
720# Howland, Baker
721# Howland was mined for guano by American companies 1857-1878 and British
722# 1886-1891; Baker was similar but exact dates are not known.
723# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
724# uninhabited thereafter.
725# Howland observed Hawaii Standard Time (UT -10:30) in 1937;
726# see page 206 of Elgen M. Long and Marie K. Long,
727# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
728# So most likely Howland and Baker observed Hawaii Time from 1935
729# until they were abandoned after the war.
730
731# Jarvis
732# Mined for guano by American companies 1857-1879 and British 1883?-1891?.
733# Inhabited by civilians 1935-1942; IGY scientific base 1957-1958;
734# uninhabited thereafter.
735# no information; was probably like Pacific/Kiritimati
736
737# Johnston
738#
739# From Paul Eggert (2017-02-10):
740# Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind.
741# Details are uncertain.  We have no data for Johnston after 1970, so
742# treat it like Hawaii for now.  Since Johnston is now uninhabited,
743# its link to Pacific/Honolulu is in the 'backward' file.
744#
745# In his memoirs of June 6th to October 4, 1945
746# <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
747# "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM
748# Johnston time, 1:30 AM Kwajalein time."  This was in June 1945, and
749# confirms that Johnston kept the same time as Honolulu in summer 1945.
750#
751# From Lyle McElhaney (2014-03-11):
752# [W]hen JI was being used for that [atomic bomb] testing, the time being used
753# was not Hawaiian time but rather the same time being used on the ships,
754# which had a GMT offset of -11 hours.  This apparently applied to at least the
755# time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last
756# Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin,
757# "The United States High-Altitude Test Experience: A Review Emphasizing the
758# Impact on the Environment", Los Alamos LA-6405, Oct 1976.
759# http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf
760# See the table on page 4 where he lists GMT and local times for the tests; a
761# footnote for the JI tests reads that local time is "JI time = Hawaii Time
762# Minus One Hour".
763
764# Kingman
765# uninhabited
766
767# Midway
768# See Pacific/Pago_Pago.
769
770# Palmyra
771# uninhabited since World War II; was probably like Pacific/Kiritimati
772
773# Wake
774# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
775Zone	Pacific/Wake	11:06:28 -	LMT	1901
776			12:00	-	+12
777
778
779# Vanuatu
780# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
781Rule	Vanuatu	1983	only	-	Sep	25	0:00	1:00	S
782Rule	Vanuatu	1984	1991	-	Mar	Sun>=23	0:00	0	-
783Rule	Vanuatu	1984	only	-	Oct	23	0:00	1:00	S
784Rule	Vanuatu	1985	1991	-	Sep	Sun>=23	0:00	1:00	S
785Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
786Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
787# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
788Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13 # Vila
789			11:00	Vanuatu	+11/+12
790
791# Wallis and Futuna
792# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
793Zone	Pacific/Wallis	12:15:20 -	LMT	1901
794			12:00	-	+12
795
796###############################################################################
797
798# NOTES
799
800# This file is by no means authoritative; if you think you know better,
801# go ahead and edit the file (and please send any changes to
802# tz@iana.org for general use in the future).  For more, please see
803# the file CONTRIBUTING in the tz distribution.
804
805# From Paul Eggert (2017-02-10):
806#
807# Unless otherwise specified, the source for data through 1990 is:
808# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
809# San Diego: ACS Publications, Inc. (2003).
810# Unfortunately this book contains many errors and cites no sources.
811#
812# Many years ago Gwillim Law wrote that a good source
813# for time zone data was the International Air Transport
814# Association's Standard Schedules Information Manual (IATA SSIM),
815# published semiannually.  Law sent in several helpful summaries
816# of the IATA's data after 1990.  Except where otherwise noted,
817# IATA SSIM is the source for entries after 1990.
818#
819# Another source occasionally used is Edward W. Whitman, World Time Differences,
820# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
821# I found in the UCLA library.
822#
823# For data circa 1899, a common source is:
824# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
825# http://www.jstor.org/stable/1774359
826#
827# A reliable and entertaining source about time zones is
828# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
829#
830# The following abbreviations are from other sources.
831# Corrections are welcome!
832#		std	dst
833#		LMT		Local Mean Time
834#	  8:00	AWST	AWDT	Western Australia
835#	  9:30	ACST	ACDT	Central Australia
836#	 10:00	AEST	AEDT	Eastern Australia
837#	 10:00	GST		Guam through 2000
838#	 10:00	ChST		Chamorro
839#	 11:30	NZMT	NZST	New Zealand through 1945
840#	 12:00	NZST	NZDT	New Zealand 1946-present
841#	-11:00	SST		Samoa
842#	-10:00	HST		Hawaii
843#
844# See the 'northamerica' file for Hawaii.
845# See the 'southamerica' file for Easter I and the Gal��pagos Is.
846
847###############################################################################
848
849# Australia
850
851# From Paul Eggert (2014-06-30):
852# Daylight saving time has long been controversial in Australia, pitting
853# region against region, rural against urban, and local against global.
854# For example, in her review of Graeme Davison's _The Unforgiving
855# Minute: how Australians learned to tell the time_ (1993), Perth native
856# Phillipa J Martyr wrote, "The section entitled 'Saving Daylight' was
857# very informative, but was (as can, sadly, only be expected from a
858# Melbourne-based study) replete with the usual chuckleheaded
859# Queenslanders and straw-chewing yokels from the West prattling fables
860# about fading curtains and crazed farm animals."
861# Electronic Journal of Australian and New Zealand History (1997-03-03)
862# http://www.jcu.edu.au/aff/history/reviews/davison.htm
863
864# From Paul Eggert (2005-12-08):
865# Implementation Dates of Daylight Saving Time within Australia
866# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml
867# summarizes daylight saving issues in Australia.
868
869# From Arthur David Olson (2005-12-12):
870# Lawlink NSW:Daylight Saving in New South Wales
871# http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving
872# covers New South Wales in particular.
873
874# From John Mackin (1991-03-06):
875# We in Australia have _never_ referred to DST as 'daylight' time.
876# It is called 'summer' time.  Now by a happy coincidence, 'summer'
877# and 'standard' happen to start with the same letter; hence, the
878# abbreviation does _not_ change...
879# The legislation does not actually define abbreviations, at least
880# in this State, but the abbreviation is just commonly taken to be the
881# initials of the phrase, and the legislation here uniformly uses
882# the phrase 'summer time' and does not use the phrase 'daylight
883# time'.
884# Announcers on the Commonwealth radio network, the ABC (for Australian
885# Broadcasting Commission), use the phrases 'Eastern Standard Time'
886# or 'Eastern Summer Time'.  (Note, though, that as I say in the
887# current australasia file, there is really no such thing.)  Announcers
888# on its overseas service, Radio Australia, use the same phrases
889# prefixed by the word 'Australian' when referring to local times;
890# time announcements on that service, naturally enough, are made in UTC.
891
892# From Paul Eggert (2014-06-30):
893#
894# Inspired by Mackin's remarks quoted above, earlier versions of this
895# file used "EST" for both Eastern Standard Time and Eastern Summer
896# Time in Australia, and similarly for "CST", "CWST", and "WST".
897# However, these abbreviations were confusing and were not common
898# practice among Australians, and there were justifiable complaints
899# about them, so I attempted to survey current Australian usage.
900# For the tz database, the full English phrase is not that important;
901# what matters is the abbreviation.  It's difficult to survey the web
902# directly for abbreviation usage, as there are so many false hits for
903# strings like "EST" and "EDT", so I looked for pages that defined an
904# abbreviation for eastern or central DST in Australia, and got the
905# following numbers of unique hits for the listed Google queries:
906#
907#   10 "Eastern Daylight Time AEST" site:au [some are false hits]
908#   10 "Eastern Summer Time AEST" site:au
909#   10 "Summer Time AEDT" site:au
910#   13 "EDST Eastern Daylight Saving Time" site:au
911#   18 "Summer Time ESST" site:au
912#   28 "Eastern Daylight Saving Time EDST" site:au
913#   39 "EDT Eastern Daylight Time" site:au [some are false hits]
914#   53 "Eastern Daylight Time EDT" site:au [some are false hits]
915#   54 "AEDT Australian Eastern Daylight Time" site:au
916#  182 "Eastern Daylight Time AEDT" site:au
917#
918#   17 "Central Daylight Time CDT" site:au [some are false hits]
919#   46 "Central Daylight Time ACDT" site:au
920#
921# I tried several other variants (e.g., "Eastern Summer Time EST") but
922# they all returned fewer than 10 unique hits.  I also looked for pages
923# mentioning both "western standard time" and an abbreviation, since
924# there is no WST in the US to generate false hits, and found:
925#
926#  156 "western standard time" AWST site:au
927#  226 "western standard time" WST site:au
928#
929# I then surveyed the top ten newspapers in Australia by circulation as
930# listed in Wikipedia, using Google queries like "AEDT site:heraldsun.com.au"
931# and obtaining estimated counts from the initial page of search results.
932# All ten papers greatly preferred "AEDT" to "EDT".  The papers
933# surveyed were the Herald Sun, The Daily Telegraph, The Courier-Mail,
934# The Sydney Morning Herald, The West Australian, The Age, The Advertiser,
935# The Australian, The Financial Review, and The Herald (Newcastle).
936#
937# I also searched for historical usage, to see whether abbreviations
938# like "AEDT" are new.  A Trove search <http://trove.nla.gov.au/>
939# found only one newspaper (The Canberra Times) with a house style
940# dating back to the 1970s, I expect because other newspapers weren't
941# fully indexed.  The Canberra Times strongly preferred abbreviations
942# like "AEDT".  The first occurrence of "AEDT" was a World Weather
943# column (1971-11-17, page 24), and of "ACDT" was a Scoreboard column
944# (1993-01-24, p 16).  The style was the typical usage but was not
945# strictly enforced; for example, "Welcome to the twilight zones ..."
946# (1994-10-29, p 1) uses the abbreviations AEST/AEDT, CST/CDT, and
947# WST, and goes on to say, "The confusion and frustration some feel
948# about the lack of uniformity among Australia's six states and two
949# territories has prompted one group to form its very own political
950# party -- the Sydney-based Daylight Saving Extension Party."
951#
952# I also surveyed federal government sources.  They did not agree:
953#
954#   The Australian Government (2014-03-26)
955#   http://australia.gov.au/about-australia/our-country/time
956#   (This document was produced by the Department of Finance.)
957#   AEST ACST AWST AEDT ACDT
958#
959#   Bureau of Meteorology (2012-11-08)
960#   http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml
961#   EST CST WST EDT CDT
962#
963#   Civil Aviation Safety Authority (undated)
964#   http://services.casa.gov.au/outnback/inc/pages/episode3/episode-3_time_zones.shtml
965#   EST CST WST (no abbreviations given for DST)
966#
967#   Geoscience Australia (2011-11-24)
968#   http://www.ga.gov.au/geodesy/astro/sunrise.jsp
969#   AEST ACST AWST AEDT ACDT
970#
971#   Parliamentary Library (2008-11-10)
972#   http://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf
973#   EST CST WST preferred for standard time; AEST AEDT ACST ACDT also used
974#
975#   The Transport Safety Bureau has an extensive series of accident reports,
976#   and investigators seem to use whatever abbreviation they like.
977#   Googling site:atsb.gov.au found the following number of unique hits:
978#   311 "ESuT", 195 "EDT", 26 "AEDT", 83 "CSuT", 46 "CDT".
979#   "_SuT" tended to appear in older reports, and "A_DT" tended to
980#   appear in reports of events with international implications.
981#
982# From the above it appears that there is a working consensus in
983# Australia to use trailing "DT" for daylight saving time; although
984# some sources use trailing "SST" or "ST" or "SuT" they are by far in
985# the minority.  The case for leading "A" is weaker, but since it
986# seems to be preferred in the overall web and is preferred in all
987# the leading newspaper websites and in many government departments,
988# it has a stronger case than omitting the leading "A".  The current
989# version of the database therefore uses abbreviations like "AEST" and
990# "AEDT" for Australian time zones.
991
992# From Paul Eggert (1995-12-19):
993# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
994# Mark Prior writes that his newspaper
995# reports that NSW's fall 1995 change will occur at 2:00,
996# but Robert Elz says it's been 3:00 in Victoria since 1970
997# and perhaps the newspaper's '2:00' is referring to standard time.
998# For now we'll continue to assume 2:00s for changes since 1960.
999
1000# From Eric Ulevik (1998-01-05):
1001#
1002# Here are some URLs to Australian time legislation. These URLs are stable,
1003# and should probably be included in the data file. There are probably more
1004# relevant entries in this database.
1005#
1006# NSW (including LHI and Broken Hill):
1007# Standard Time Act 1987 (updated 1995-04-04)
1008# http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html
1009# ACT
1010# Standard Time and Summer Time Act 1972
1011# http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html
1012# SA
1013# Standard Time Act, 1898
1014# http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html
1015
1016# From David Grosz (2005-06-13):
1017# It was announced last week that Daylight Saving would be extended by
1018# one week next year to allow for the 2006 Commonwealth Games.
1019# Daylight Saving is now to end for next year only on the first Sunday
1020# in April instead of the last Sunday in March.
1021#
1022# From Gwillim Law (2005-06-14):
1023# I did some Googling and found that all of those states (and territory) plan
1024# to extend DST together in 2006.
1025# ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt
1026# New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html
1027# South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html
1028# Tasmania: http://www.media.tas.gov.au/release.php?id=14772
1029# Victoria: I wasn't able to find anything separate, but the other articles
1030# allude to it.
1031# But not Queensland
1032# http://www.news.com.au/story/0,10117,15564030-1248,00.html
1033
1034# Northern Territory
1035
1036# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1037# # The NORTHERN TERRITORY..  [ Courtesy N.T. Dept of the Chief Minister ]
1038# #					[ Nov 1990 ]
1039# #	N.T. have never utilised any DST due to sub-tropical/tropical location.
1040# ...
1041# Zone        Australia/North         9:30    -       CST
1042
1043# From Bradley White (1991-03-04):
1044# A recent excerpt from an Australian newspaper...
1045# the Northern Territory do[es] not have daylight saving.
1046
1047# Western Australia
1048
1049# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1050# #  The state of WESTERN AUSTRALIA..  [ Courtesy W.A. dept Premier+Cabinet ]
1051# #						[ Nov 1990 ]
1052# #	W.A. suffers from a great deal of public and political opposition to
1053# #	DST in principle. A bill is brought before parliament in most years, but
1054# #	usually defeated either in the upper house, or in party caucus
1055# #	before reaching parliament.
1056# ...
1057# Zone	Australia/West		8:00	AW	%sST
1058# ...
1059# Rule	AW	1974	only	-	Oct	lastSun	2:00	1:00	D
1060# Rule	AW	1975	only	-	Mar	Sun>=1	3:00	0	W
1061# Rule	AW	1983	only	-	Oct	lastSun	2:00	1:00	D
1062# Rule	AW	1984	only	-	Mar	Sun>=1	3:00	0	W
1063
1064# From Bradley White (1991-03-04):
1065# A recent excerpt from an Australian newspaper...
1066# Western Australia...do[es] not have daylight saving.
1067
1068# From John D. Newman via Bradley White (1991-11-02):
1069# Western Australia is still on "winter time". Some DH in Sydney
1070# rang me at home a few days ago at 6.00am. (He had just arrived at
1071# work at 9.00am.)
1072# W.A. is switching to Summer Time on Nov 17th just to confuse
1073# everybody again.
1074
1075# From Arthur David Olson (1992-03-08):
1076# The 1992 ending date used in the rules is a best guess;
1077# it matches what was used in the past.
1078
1079# The Australian Bureau of Meteorology FAQ
1080# http://www.bom.gov.au/faq/faqgen.htm
1081# (1999-09-27) writes that Giles Meteorological Station uses
1082# South Australian time even though it's located in Western Australia.
1083
1084# Queensland
1085# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1086# #   The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ]
1087# #						[ Dec 1990 ]
1088# ...
1089# Zone	Australia/Queensland	10:00	AQ	%sST
1090# ...
1091# Rule	AQ	1971	only	-	Oct	lastSun	2:00	1:00	D
1092# Rule	AQ	1972	only	-	Feb	lastSun	3:00	0	E
1093# Rule	AQ	1989	max	-	Oct	lastSun	2:00	1:00	D
1094# Rule	AQ	1990	max	-	Mar	Sun>=1	3:00	0	E
1095
1096# From Bradley White (1989-12-24):
1097# "Australia/Queensland" now observes daylight time (i.e. from
1098# October 1989).
1099
1100# From Bradley White (1991-03-04):
1101# A recent excerpt from an Australian newspaper...
1102# ...Queensland...[has] agreed to end daylight saving
1103# at 3am tomorrow (March 3)...
1104
1105# From John Mackin (1991-03-06):
1106# I can certainly confirm for my part that Daylight Saving in NSW did in fact
1107# end on Sunday, 3 March.  I don't know at what hour, though.  (It surprised
1108# me.)
1109
1110# From Bradley White (1992-03-08):
1111# ...there was recently a referendum in Queensland which resulted
1112# in the experimental daylight saving system being abandoned. So, ...
1113# ...
1114# Rule	QLD	1989	1991	-	Oct	lastSun	2:00	1:00	D
1115# Rule	QLD	1990	1992	-	Mar	Sun>=1	3:00	0	S
1116# ...
1117
1118# From Arthur David Olson (1992-03-08):
1119# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes.
1120
1121# From Christopher Hunt (2006-11-21), after an advance warning
1122# from Jesper N��rgaard Welen (2006-11-01):
1123# WA are trialing DST for three years.
1124# http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf
1125
1126# From Rives McDow (2002-04-09):
1127# The most interesting region I have found consists of three towns on the
1128# southern coast....  South Australia observes daylight saving time; Western
1129# Australia does not.  The two states are one and a half hours apart.  The
1130# residents decided to forget about this nonsense of changing the clock so
1131# much and set the local time 20 hours and 45 minutes from the
1132# international date line, or right in the middle of the time of South
1133# Australia and Western Australia....
1134#
1135# From Paul Eggert (2002-04-09):
1136# This is confirmed by the section entitled
1137# "What's the deal with time zones???" in
1138# http://www.earthsci.unimelb.edu.au/~awatkins/null.html
1139#
1140# From Alex Livingston (2006-12-07):
1141# ... it was just on four years ago that I drove along the Eyre Highway,
1142# which passes through eastern Western Australia close to the southern
1143# coast of the continent.
1144#
1145# I paid particular attention to the time kept there. There can be no
1146# dispute that UTC+08:45 was considered "the time" from the border
1147# village just inside the border with South Australia to as far west
1148# as just east of Caiguna. There can also be no dispute that Eucla is
1149# the largest population centre in this zone....
1150#
1151# Now that Western Australia is observing daylight saving, the
1152# question arose whether this part of the state would follow suit. I
1153# just called the border village and confirmed that indeed they have,
1154# meaning that they are now observing UTC+09:45.
1155#
1156# (2006-12-09):
1157# I personally doubt that either experimentation with daylight saving
1158# in WA or its introduction in SA had anything to do with the genesis
1159# of this time zone.  My hunch is that it's been around since well
1160# before 1975.  I remember seeing it noted on road maps decades ago.
1161
1162# From Paul Eggert (2006-12-15):
1163# For lack of better info, assume the tradition dates back to the
1164# introduction of standard time in 1895.
1165
1166
1167# southeast Australia
1168#
1169# From Paul Eggert (2007-07-23):
1170# Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT
1171# end DST the first Sunday in April and start DST the first Sunday in October.
1172# http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html
1173
1174
1175# South Australia
1176
1177# From Bradley White (1991-03-04):
1178# A recent excerpt from an Australian newspaper...
1179# ...South Australia...[has] agreed to end daylight saving
1180# at 3am tomorrow (March 3)...
1181
1182# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1183# #   The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ]
1184# #						[ Nov 1990 ]
1185# ...
1186# Zone	Australia/South		9:30	AS	%sST
1187# ...
1188# Rule	 AS	1971	max	-	Oct	lastSun	2:00	1:00	D
1189# Rule	 AS	1972	1985	-	Mar	Sun>=1	3:00	0	C
1190# Rule	 AS	1986	1990	-	Mar	Sun>=15	3:00	0	C
1191# Rule	 AS	1991	max	-	Mar	Sun>=1	3:00	0	C
1192
1193# From Bradley White (1992-03-11):
1194# Recent correspondence with a friend in Adelaide
1195# contained the following exchange:  "Due to the Adelaide Festival,
1196# South Australia delays setting back our clocks for a few weeks."
1197
1198# From Robert Elz (1992-03-13):
1199# I heard that apparently (or at least, it appears that)
1200# South Aus will have an extra 3 weeks daylight saving every even
1201# numbered year (from 1990).  That's when the Adelaide Festival
1202# is on...
1203
1204# From Robert Elz (1992-03-16, 00:57:07 +1000):
1205# DST didn't end in Adelaide today (yesterday)....
1206# But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever...
1207# (it's just as likely to be "the Sunday we pick for this year"...).
1208
1209# From Bradley White (1994-04-11):
1210# If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March,
1211# 1994 was at +0930 as John Connolly's customer seems to assert, then I can
1212# only conclude that the actual rule is more complicated....
1213
1214# From John Warburton (1994-10-07):
1215# The new Daylight Savings dates for South Australia ...
1216# was gazetted in the Government Hansard on Sep 26 1994....
1217# start on last Sunday in October and end in last sunday in March.
1218
1219# From Paul Eggert (2007-07-23):
1220# See "southeast Australia" above for 2008 and later.
1221
1222# Tasmania
1223
1224# The rules for 1967 through 1991 were reported by George Shepherd
1225# via Simon Woodhead via Robert Elz (1991-03-06):
1226# #  The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
1227# #					[ Nov 1990 ]
1228
1229# From Bill Hart via Guy Harris (1991-10-10):
1230# Oh yes, the new daylight savings rules are uniquely tasmanian, we have
1231# 6 weeks a year now when we are out of sync with the rest of Australia
1232# (but nothing new about that).
1233
1234# From Alex Livingston (1999-10-04):
1235# I heard on the ABC (Australian Broadcasting Corporation) radio news on the
1236# (long) weekend that Tasmania, which usually goes its own way in this regard,
1237# has decided to join with most of NSW, the ACT, and most of Victoria
1238# (Australia) and start daylight saving on the last Sunday in August in 2000
1239# instead of the first Sunday in October.
1240
1241# Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules:
1242# http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300
1243
1244# From Paul Eggert (2007-07-23):
1245# See "southeast Australia" above for 2008 and later.
1246
1247# Victoria
1248
1249# The rules for 1971 through 1991 were reported by George Shepherd
1250# via Simon Woodhead via Robert Elz (1991-03-06):
1251# #   The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
1252# #						[ Nov 1990 ]
1253
1254# From Scott Harrington (2001-08-29):
1255# On KQED's "City Arts and Lectures" program last night I heard an
1256# interesting story about daylight savings time.  Dr. John Heilbron was
1257# discussing his book "The Sun in the Church: Cathedrals as Solar
1258# Observatories"[1], and in particular the Shrine of Remembrance[2] located
1259# in Melbourne, Australia.
1260#
1261# Apparently the shrine's main purpose is a beam of sunlight which
1262# illuminates a special spot on the floor at the 11th hour of the 11th day
1263# of the 11th month (Remembrance Day) every year in memory of Australia's
1264# fallen WWI soldiers.  And if you go there on Nov. 11, at 11am local time,
1265# you will indeed see the sunbeam illuminate the special spot at the
1266# expected time.
1267#
1268# However, that is only because of some special mirror contraption that had
1269# to be employed, since due to daylight savings time, the true solar time of
1270# the remembrance moment occurs one hour later (or earlier?).  Perhaps
1271# someone with more information on this jury-rig can tell us more.
1272#
1273# [1] http://www.hup.harvard.edu/catalog/HEISUN.html
1274# [2] http://www.shrine.org.au
1275
1276# From Paul Eggert (2007-07-23):
1277# See "southeast Australia" above for 2008 and later.
1278
1279# New South Wales
1280
1281# From Arthur David Olson:
1282# New South Wales and subjurisdictions have their own ideas of a fun time.
1283# Based on law library research by John Mackin,
1284# who notes:
1285#	In Australia, time is not legislated federally, but rather by the
1286#	individual states.  Thus, while such terms as "Eastern Standard Time"
1287#	[I mean, of course, Australian EST, not any other kind] are in common
1288#	use, _they have NO REAL MEANING_, as they are not defined in the
1289#	legislation.  This is very important to understand.
1290#	I have researched New South Wales time only...
1291
1292# From Eric Ulevik (1999-05-26):
1293# DST will start in NSW on the last Sunday of August, rather than the usual
1294# October in 2000.  See: Matthew Moore,
1295# Two months more daylight saving, Sydney Morning Herald (1999-05-26).
1296# http://www.smh.com.au/news/9905/26/pageone/pageone4.html
1297
1298# From Paul Eggert (1999-09-27):
1299# See the following official NSW source:
1300# Daylight Saving in New South Wales.
1301# http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ
1302#
1303# Narrabri Shire (NSW) council has announced it will ignore the extension of
1304# daylight saving next year.  See:
1305# Narrabri Council to ignore daylight saving
1306# http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm
1307# (1999-07-22).  For now, we'll wait to see if this really happens.
1308#
1309# Victoria will following NSW.  See:
1310# Vic to extend daylight saving (1999-07-28)
1311# http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm
1312#
1313# However, South Australia rejected the DST request.  See:
1314# South Australia rejects Olympics daylight savings request (1999-07-19)
1315# http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm
1316#
1317# Queensland also will not observe DST for the Olympics.  See:
1318# Qld says no to daylight savings for Olympics
1319# http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm
1320# (1999-06-01), which quotes Queensland Premier Peter Beattie as saying
1321# "Look you've got to remember in my family when this came up last time
1322# I voted for it, my wife voted against it and she said to me it's all very
1323# well for you, you don't have to worry about getting the children out of
1324# bed, getting them to school, getting them to sleep at night.
1325# I've been through all this argument domestically...my wife rules."
1326#
1327# Broken Hill will stick with South Australian time in 2000.  See:
1328# Broken Hill to be behind the times (1999-07-21)
1329# http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm
1330
1331# IATA SSIM (1998-09) says that the spring 2000 change for Australian
1332# Capital Territory, New South Wales except Lord Howe Island and Broken
1333# Hill, and Victoria will be August 27, presumably due to the Sydney Olympics.
1334
1335# From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29:
1336# The Queensland Premier Peter Beattie is encouraging northern NSW
1337# towns to use Queensland time.
1338
1339# From Paul Eggert (2007-07-23):
1340# See "southeast Australia" above for 2008 and later.
1341
1342# Yancowinna
1343
1344# From John Mackin (1989-01-04):
1345# 'Broken Hill' means the County of Yancowinna.
1346
1347# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1348# # YANCOWINNA..  [ Confirmation courtesy of Broken Hill Postmaster ]
1349# #					[ Dec 1990 ]
1350# ...
1351# # Yancowinna uses Central Standard Time, despite [its] location on the
1352# # New South Wales side of the S.A. border. Most business and social dealings
1353# # are with CST zones, therefore CST is legislated by local government
1354# # although the switch to Summer Time occurs in line with N.S.W. There have
1355# # been years when this did not apply, but the historical data is not
1356# # presently available.
1357# Zone	Australia/Yancowinna	9:30	 AY	%sST
1358# ...
1359# Rule	 AY	1971	1985	-	Oct	lastSun	2:00	1:00	D
1360# Rule	 AY	1972	only	-	Feb	lastSun	3:00	0	C
1361# [followed by other Rules]
1362
1363# Lord Howe Island
1364
1365# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1366# LHI...		[ Courtesy of Pauline Van Winsen ]
1367#					[ Dec 1990 ]
1368# Lord Howe Island is located off the New South Wales coast, and is half an
1369# hour ahead of NSW time.
1370
1371# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
1372# Lord Howe Island summer time in 2000/2001 will commence on the same
1373# date as the rest of NSW (i.e. 2000-08-27).  For your information the
1374# Lord Howe Island Board (controlling authority for the Island) is
1375# seeking the community's views on various options for summer time
1376# arrangements on the Island, e.g. advance clocks by 1 full hour
1377# instead of only 30 minutes.  [Dependent] on the wishes of residents
1378# the Board may approach the NSW government to change the existing
1379# arrangements.  The starting date for summer time on the Island will
1380# however always coincide with the rest of NSW.
1381
1382# From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25):
1383# Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards
1384# clocks by 30 minutes when DST finishes. Since DST was most recently
1385# introduced in NSW, the "changeover" time on the Island has been 02:00 as
1386# shown on clocks on LHI. I guess this means that for 30 minutes at the start
1387# of DST, LHI is actually 1 hour ahead of the rest of NSW.
1388
1389# From Paul Eggert (2006-03-22):
1390# For Lord Howe dates we use Shanks & Pottenger through 1989, and
1391# Lonergan thereafter.  For times we use Lonergan.
1392
1393# From Paul Eggert (2007-07-23):
1394# See "southeast Australia" above for 2008 and later.
1395
1396# From Steffen Thorsen (2009-04-28):
1397# According to the official press release, South Australia's extended daylight
1398# saving period will continue with the same rules as used during the 2008-2009
1399# summer (southern hemisphere).
1400#
1401# From
1402# http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf
1403# The extended daylight saving period that South Australia has been trialling
1404# for over the last year is now set to be ongoing.
1405# Daylight saving will continue to start on the first Sunday in October each
1406# year and finish on the first Sunday in April the following year.
1407# Industrial Relations Minister, Paul Caica, says this provides South Australia
1408# with a consistent half hour time difference with NSW, Victoria, Tasmania and
1409# the ACT for all 52 weeks of the year...
1410#
1411# We have a wrap-up here:
1412# http://www.timeanddate.com/news/time/south-australia-extends-dst.html
1413###############################################################################
1414
1415# New Zealand
1416
1417# From Mark Davies (1990-10-03):
1418# the 1989/90 year was a trial of an extended "daylight saving" period.
1419# This trial was deemed successful and the extended period adopted for
1420# subsequent years (with the addition of a further week at the start).
1421# source - phone call to Ministry of Internal Affairs Head Office.
1422
1423# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1424# # The Country of New Zealand   (Australia's east island -) Gee they hate that!
1425# #				   or is Australia the west island of N.Z.
1426# #	[ courtesy of Geoff Tribble.. Auckland N.Z. ]
1427# #				[ Nov 1990 ]
1428# ...
1429# Rule	NZ      1974    1988	-	Oct	lastSun	2:00	1:00	D
1430# Rule	NZ	1989	max	-	Oct	Sun>=1	2:00	1:00	D
1431# Rule	NZ      1975    1989	-	Mar	Sun>=1	3:00	0	S
1432# Rule	NZ	1990	max	-	Mar	lastSun	3:00	0	S
1433# ...
1434# Zone	NZ			12:00	NZ		NZ%sT	# New Zealand
1435# Zone	NZ-CHAT			12:45	-		NZ-CHAT # Chatham Island
1436
1437# From Arthur David Olson (1992-03-08):
1438# The chosen rules use the Davies October 8 values for the start of DST in 1989
1439# rather than the October 1 value.
1440
1441# From Paul Eggert (1995-12-19);
1442# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1443# Robert Uzgalis writes that the New Zealand Daylight
1444# Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
1445# time on both the first Sunday in October and the third Sunday in March.
1446# As with Australia, we'll assume the tradition is 2:00s, not 2:00.
1447#
1448# From Paul Eggert (2006-03-22):
1449# The Department of Internal Affairs (DIA) maintains a brief history,
1450# as does Carol Squires; see tz-link.htm for the full references.
1451# Use these sources in preference to Shanks & Pottenger.
1452#
1453# For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
1454# transitions at 2:45 local standard time; this confirms that Chatham
1455# is always exactly 45 minutes ahead of Auckland.
1456
1457# From Colin Sharples (2007-04-30):
1458# DST will now start on the last Sunday in September, and end on the
1459# first Sunday in April.  The changes take effect this year, meaning
1460# that DST will begin on 2007-09-30 2008-04-06.
1461# http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended
1462
1463# From Paul Eggert (2014-07-14):
1464# Chatham Island time was formally standardized on 1957-01-01 by
1465# New Zealand's Standard Time Amendment Act 1956 (1956-10-26).
1466# http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf
1467# According to Google Books snippet view, a speaker in the New Zealand
1468# parliamentary debates in 1956 said "Clause 78 makes provision for standard
1469# time in the Chatham Islands.  The time there is 45 minutes in advance of New
1470# Zealand time.  I understand that is the time they keep locally, anyhow."
1471# For now, assume this practice goes back to the introduction of standard time
1472# in New Zealand, as this would make Chatham Islands time almost exactly match
1473# LMT back when New Zealand was at UT +11:30; also, assume Chatham Islands did
1474# not observe New Zealand's prewar DST.
1475
1476###############################################################################
1477
1478
1479# Fiji
1480
1481# Howse writes (p 153) that in 1879 the British governor of Fiji
1482# enacted an ordinance standardizing the islands on Antipodean Time
1483# instead of the American system (which was one day behind).
1484
1485# From Rives McDow (1998-10-08):
1486# Fiji will introduce DST effective 0200 local time, 1998-11-01
1487# until 0300 local time 1999-02-28.  Each year the DST period will
1488# be from the first Sunday in November until the last Sunday in February.
1489
1490# From Paul Eggert (2000-01-08):
1491# IATA SSIM (1999-09) says DST ends 0100 local time.  Go with McDow.
1492
1493# From the BBC World Service in
1494# http://news.bbc.co.uk/2/hi/asia-pacific/205226.stm (1998-10-31 16:03 UTC):
1495# The Fijian government says the main reasons for the time change is to
1496# improve productivity and reduce road accidents.... [T]he move is also
1497# intended to boost Fiji's ability to attract tourists to witness the dawning
1498# of the new millennium.
1499
1500# http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13)
1501# reports that Fiji has discontinued DST.
1502
1503
1504# Kiribati
1505
1506# From Paul Eggert (1996-01-22):
1507# Today's _Wall Street Journal_ (page 1) reports that Kiribati
1508# "declared it the same day [throughout] the country as of Jan. 1, 1995"
1509# as part of the competition to be first into the 21st century.
1510
1511
1512# Kwajalein
1513
1514# In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
1515# I wonder what happened in Kwajalein, where there was NO Friday,
1516# 1993-08-20.  Thursday night at midnight Kwajalein switched sides with
1517# respect to the International Date Line, to rejoin its fellow islands,
1518# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
1519
1520
1521# N Mariana Is, Guam
1522
1523# Howse writes (p 153) "The Spaniards, on the other hand, reached the
1524# Philippines and the Ladrones from America," and implies that the Ladrones
1525# (now called the Marianas) kept American date for quite some time.
1526# For now, we assume the Ladrones switched at the same time as the Philippines;
1527# see Asia/Manila.
1528
1529# US Public Law 106-564 (2000-12-23) made UT +10 the official standard time,
1530# under the name "Chamorro Standard Time".  There is no official abbreviation,
1531# but Congressman Robert A. Underwood, author of the bill that became law,
1532# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
1533
1534
1535# Micronesia
1536
1537# Alan Eugene Davis writes (1996-03-16),
1538# "I am certain, having lived there for the past decade, that 'Truk'
1539# (now properly known as Chuuk) ... is in the time zone GMT+10."
1540#
1541# Shanks & Pottenger write that Truk switched from UT +10 to +11
1542# on 1978-10-01; ignore this for now.
1543
1544# From Paul Eggert (1999-10-29):
1545# The Federated States of Micronesia Visitors Board writes in
1546# The Federated States of Micronesia - Visitor Information (1999-01-26)
1547# http://www.fsmgov.org/info/clocks.html
1548# that Truk and Yap are UT +10, and Ponape and Kosrae are +11.
1549# We don't know when Kosrae switched from +12; assume January 1 for now.
1550
1551
1552# Midway
1553
1554# From Charles T O'Connor, KMTH DJ (1956),
1555# quoted in the KTMH section of the Radio Heritage Collection
1556# <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31):
1557# For the past two months we've been on what is known as Daylight
1558# Saving Time.  This time has put us on air at 5am in the morning,
1559# your time down there in New Zealand.  Starting September 2, 1956
1560# we'll again go back to Standard Time.  This'll mean that we'll go to
1561# air at 6am your time.
1562#
1563# From Paul Eggert (2003-03-23):
1564# We don't know the date of that quote, but we'll guess they
1565# started DST on June 3.  Possibly DST was observed other years
1566# in Midway, but we have no record of it.
1567
1568# Norfolk
1569
1570# From Alexander Krivenyshev (2015-09-23):
1571# Norfolk Island will change ... from +1130 to +1100:
1572# https://www.comlaw.gov.au/Details/F2015L01483/Explanatory%20Statement/Text
1573# ... at 12.30 am (by legal time in New South Wales) on 4 October 2015.
1574# http://www.norfolkisland.gov.nf/nia/MediaRelease/Media%20Release%20Norfolk%20Island%20Standard%20Time%20Change.pdf
1575
1576# From Paul Eggert (2015-09-23):
1577# Transitions before 2015 are from timeanddate.com, which consulted
1578# the Norfolk Island Museum and the Australian Bureau of Meteorology's
1579# Norfolk Island station, and found no record of Norfolk observing DST
1580# other than in 1974/5.  See:
1581# http://www.timeanddate.com/time/australia/norfolk-island.html
1582
1583# Pitcairn
1584
1585# From Rives McDow (1999-11-08):
1586# A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998
1587# with regard to Pitcairn Standard Time.  The Proclamation is as follows.
1588#
1589#	The local time for general purposes in the Islands shall be
1590#	Co-ordinated Universal time minus 8 hours and shall be known
1591#	as Pitcairn Standard Time.
1592#
1593# ... I have also seen Pitcairn listed as UTC minus 9 hours in several
1594# references, and can only assume that this was an error in interpretation
1595# somehow in light of this proclamation.
1596
1597# From Rives McDow (1999-11-09):
1598# The Proclamation regarding Pitcairn time came into effect on 27 April 1998
1599# ... at midnight.
1600
1601# From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:
1602# Betty Christian told me yesterday that their local time is the same as
1603# Pacific Standard Time. They used to be 1/2 hour different from us here in
1604# Sacramento but it was changed a couple of years ago.
1605
1606
1607# (Western) Samoa and American Samoa
1608
1609# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
1610# that in 1879 the King of Samoa decided to change
1611# "the date in his kingdom from the Antipodean to the American system,
1612# ordaining - by a masterpiece of diplomatic flattery - that
1613# the Fourth of July should be celebrated twice in that year."
1614
1615# Although Shanks & Pottenger says they both switched to UT -11:30
1616# in 1911, and to -11 in 1950. many earlier sources give -11
1617# for American Samoa, e.g., the US National Bureau of Standards
1618# circular "Standard Time Throughout the World", 1932.
1619# Assume American Samoa switched to -11 in 1911, not 1950,
1620# and that after 1950 they agreed until (western) Samoa skipped a
1621# day in 2011.  Assume also that the Samoas follow the US and New
1622# Zealand's "ST"/"DT" style of daylight-saving abbreviations.
1623
1624# Tonga
1625
1626# From Paul Eggert (1996-01-22):
1627# Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting
1628# to sneak ahead of [New Zealanders] by introducing daylight-saving time."
1629# Since Kiribati has moved the Date Line it's not clear what Tonga will do.
1630
1631# Don Mundell writes in the 1997-02-20 Tonga Chronicle
1632# How Tonga became 'The Land where Time Begins':
1633# http://www.tongatapu.net.to/tonga/homeland/timebegins.htm
1634#
1635# Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST
1636# 12 hours and 20 minutes ahead of GMT.  When New Zealand adjusted its
1637# standard time in 1940s, Tonga had the choice of subtracting from its
1638# local time to come on the same standard time as New Zealand or of
1639# advancing its time to maintain the differential of 13 degrees
1640# (approximately 50 minutes ahead of New Zealand time).
1641#
1642# Because His Majesty King T��ufa����hau Tupou IV, then Crown Prince
1643# Tung��, preferred to ensure Tonga's title as the land where time
1644# begins, the Legislative Assembly approved the latter change.
1645#
1646# But some of the older, more conservative members from the outer
1647# islands objected. "If at midnight on Dec. 31, we move ahead 40
1648# minutes, as your Royal Highness wishes, what becomes of the 40
1649# minutes we have lost?"
1650#
1651# The Crown Prince, presented an unanswerable argument: "Remember that
1652# on the World Day of Prayer, you would be the first people on Earth
1653# to say your prayers in the morning."
1654
1655# From Paul Eggert (2006-03-22):
1656# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
1657
1658# From Eric Ulevik (1999-05-03):
1659# Tonga's director of tourism, who is also secretary of the National Millennium
1660# Committee, has a plan to get Tonga back in front.
1661# He has proposed a one-off move to tropical daylight saving for Tonga from
1662# October to March, which has won approval in principle from the Tongan
1663# Government.
1664
1665# From Steffen Thorsen (1999-09-09):
1666# * Tonga will introduce DST in November
1667#
1668# I was given this link by John Letts:
1669# http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
1670#
1671# I have not been able to find exact dates for the transition in November
1672# yet. By reading this article it seems like Fiji will be 14 hours ahead
1673# of UTC as well, but as far as I know Fiji will only be 13 hours ahead
1674# (12 + 1 hour DST).
1675
1676# From Arthur David Olson (1999-09-20):
1677# According to <http://www.tongaonline.com/news/sept1799.html>:
1678# "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
1679# and annually thereafter from the first Saturday in October through the
1680# third Saturday of April.  Under the system approved by Privy Council on
1681# Sept. 10, clocks must be turned ahead one hour on the opening day and
1682# set back an hour on the closing date."
1683# Alas, no indication of the time of day.
1684
1685# From Rives McDow (1999-10-06):
1686# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
1687# Daylight Saving ends on April 16 at 0300am which is Sunday morning.
1688
1689# From Steffen Thorsen (2000-10-31):
1690# Back in March I found a notice on the website http://www.tongaonline.com
1691# that Tonga changed back to standard time one month early, on March 19
1692# instead of the original reported date April 16. Unfortunately, the article
1693# is no longer available on the site, and I did not make a copy of the
1694# text, and I have forgotten to report it here.
1695# (Original URL was <http://www.tongaonline.com/news/march162000.htm>)
1696
1697# From Rives McDow (2000-12-01):
1698# Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
1699
1700# From Sione Moala-Mafi (2001-09-20) via Rives McDow:
1701# At 2:00am on the first Sunday of November, the standard time in the Kingdom
1702# shall be moved forward by one hour to 3:00am.  At 2:00am on the last Sunday
1703# of January the standard time in the Kingdom shall be moved backward by one
1704# hour to 1:00am.
1705
1706# From Pulu ��Anau (2002-11-05):
1707# The law was for 3 years, supposedly to get renewed.  It wasn't.
1708
1709# From Pulu ��Anau (2016-10-27):
1710# http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017
1711# Cannot find anyone who knows the rules, has seen the duration or has seen
1712# the cabinet decision, but it appears we are following Fiji's rule set.
1713#
1714# From Tim Parenti (2016-10-26):
1715# Assume Tonga will observe DST from the first Sunday in November at 02:00
1716# through the third Sunday in January at 03:00, like Fiji, for now.
1717
1718# Wake
1719
1720# From Vernice Anderson, Personal Secretary to Philip Jessup,
1721# US Ambassador At Large (oral history interview, 1971-02-02):
1722#
1723# Saturday, the 14th [of October, 1950] - ...  The time was all the
1724# more confusing at that point, because we had crossed the
1725# International Date Line, thus getting two Sundays.  Furthermore, we
1726# discovered that Wake Island had two hours of daylight saving time
1727# making calculation of time in Washington difficult if not almost
1728# impossible.
1729#
1730# http://www.trumanlibrary.org/wake/meeting.htm
1731
1732# From Paul Eggert (2003-03-23):
1733# We have no other report of DST in Wake Island, so omit this info for now.
1734
1735###############################################################################
1736
1737# The International Date Line
1738
1739# From Gwillim Law (2000-01-03):
1740#
1741# The International Date Line is not defined by any international standard,
1742# convention, or treaty.  Mapmakers are free to draw it as they please.
1743# Reputable mapmakers will simply ensure that every point of land appears on
1744# the correct side of the IDL, according to the date legally observed there.
1745#
1746# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
1747# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
1748# to the east side of the Phoenix and Line Islands), I suppose that most
1749# mapmakers redrew the IDL following the boundary of Kiribati.  Even that line
1750# has a rather arbitrary nature.  The straight-line boundaries between Pacific
1751# island nations that are shown on many maps are based on an international
1752# convention, but are not legally binding national borders.... The date is
1753# governed by the IDL; therefore, even on the high seas, there may be some
1754# places as late as fourteen hours later than UTC.  And, since the IDL is not
1755# an international standard, there are some places on the high seas where the
1756# correct date is ambiguous.
1757
1758# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
1759# Before 1920, all ships kept local apparent time on the high seas by setting
1760# their clocks at night or at the morning sight so that, given the ship's
1761# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
1762# meridian (12 o'clock = local apparent noon).  During 1917, at the
1763# Anglo-French Conference on Time-keeping at Sea, it was recommended that all
1764# ships, both military and civilian, should adopt hourly standard time zones
1765# on the high seas.  Whenever a ship was within the territorial waters of any
1766# nation it would use that nation's standard time.  The captain was permitted
1767# to change his ship's clocks at a time of his choice following his ship's
1768# entry into another zone time - he often chose midnight.  These zones were
1769# adopted by all major fleets between 1920 and 1925 but not by many
1770# independent merchant ships until World War II.
1771
1772# From Paul Eggert, using references suggested by Oscar van Vlijmen
1773# (2005-03-20):
1774#
1775# The American Practical Navigator (2002)
1776# http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187
1777# talks only about the 180-degree meridian with respect to ships in
1778# international waters; it ignores the international date line.
1779