australasia revision 257681
1# <pre>
2# This file is in the public domain, so clarified as of
3# 2009-05-17 by Arthur David Olson.
4
5# This file also includes Pacific islands.
6
7# Notes are at the end of this file
8
9###############################################################################
10
11# Australia
12
13# Please see the notes below for the controversy about "EST" versus "AEST" etc.
14
15# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
16Rule	Aus	1917	only	-	Jan	 1	0:01	1:00	-
17Rule	Aus	1917	only	-	Mar	25	2:00	0	-
18Rule	Aus	1942	only	-	Jan	 1	2:00	1:00	-
19Rule	Aus	1942	only	-	Mar	29	2:00	0	-
20Rule	Aus	1942	only	-	Sep	27	2:00	1:00	-
21Rule	Aus	1943	1944	-	Mar	lastSun	2:00	0	-
22Rule	Aus	1943	only	-	Oct	 3	2:00	1:00	-
23# Go with Whitman and the Australian National Standards Commission, which
24# says W Australia didn't use DST in 1943/1944.  Ignore Whitman's claim that
25# 1944/1945 was just like 1943/1944.
26
27# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
28# Northern Territory
29Zone Australia/Darwin	 8:43:20 -	LMT	1895 Feb
30			 9:00	-	CST	1899 May
31			 9:30	Aus	CST
32# Western Australia
33#
34# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
35Rule	AW	1974	only	-	Oct	lastSun	2:00s	1:00	-
36Rule	AW	1975	only	-	Mar	Sun>=1	2:00s	0	-
37Rule	AW	1983	only	-	Oct	lastSun	2:00s	1:00	-
38Rule	AW	1984	only	-	Mar	Sun>=1	2:00s	0	-
39Rule	AW	1991	only	-	Nov	17	2:00s	1:00	-
40Rule	AW	1992	only	-	Mar	Sun>=1	2:00s	0	-
41Rule	AW	2006	only	-	Dec	 3	2:00s	1:00	-
42Rule	AW	2007	2009	-	Mar	lastSun	2:00s	0	-
43Rule	AW	2007	2008	-	Oct	lastSun	2:00s	1:00	-
44Zone Australia/Perth	 7:43:24 -	LMT	1895 Dec
45			 8:00	Aus	WST	1943 Jul
46			 8:00	AW	WST
47Zone Australia/Eucla	 8:35:28 -	LMT	1895 Dec
48			 8:45	Aus	CWST	1943 Jul
49			 8:45	AW	CWST
50
51# Queensland
52#
53# From Alex Livingston (1996-11-01):
54# I have heard or read more than once that some resort islands off the coast
55# of Queensland chose to keep observing daylight-saving time even after
56# Queensland ceased to.
57#
58# From Paul Eggert (1996-11-22):
59# IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman,
60# Hamilton) observed DST for two years after the rest of Queensland stopped.
61# Hamilton is the largest, but there is also a Hamilton in Victoria,
62# so use Lindeman.
63#
64# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
65Rule	AQ	1971	only	-	Oct	lastSun	2:00s	1:00	-
66Rule	AQ	1972	only	-	Feb	lastSun	2:00s	0	-
67Rule	AQ	1989	1991	-	Oct	lastSun	2:00s	1:00	-
68Rule	AQ	1990	1992	-	Mar	Sun>=1	2:00s	0	-
69Rule	Holiday	1992	1993	-	Oct	lastSun	2:00s	1:00	-
70Rule	Holiday	1993	1994	-	Mar	Sun>=1	2:00s	0	-
71Zone Australia/Brisbane	10:12:08 -	LMT	1895
72			10:00	Aus	EST	1971
73			10:00	AQ	EST
74Zone Australia/Lindeman  9:55:56 -	LMT	1895
75			10:00	Aus	EST	1971
76			10:00	AQ	EST	1992 Jul
77			10:00	Holiday	EST
78
79# South Australia
80# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
81Rule	AS	1971	1985	-	Oct	lastSun	2:00s	1:00	-
82Rule	AS	1986	only	-	Oct	19	2:00s	1:00	-
83Rule	AS	1987	2007	-	Oct	lastSun	2:00s	1:00	-
84Rule	AS	1972	only	-	Feb	27	2:00s	0	-
85Rule	AS	1973	1985	-	Mar	Sun>=1	2:00s	0	-
86Rule	AS	1986	1990	-	Mar	Sun>=15	2:00s	0	-
87Rule	AS	1991	only	-	Mar	3	2:00s	0	-
88Rule	AS	1992	only	-	Mar	22	2:00s	0	-
89Rule	AS	1993	only	-	Mar	7	2:00s	0	-
90Rule	AS	1994	only	-	Mar	20	2:00s	0	-
91Rule	AS	1995	2005	-	Mar	lastSun	2:00s	0	-
92Rule	AS	2006	only	-	Apr	2	2:00s	0	-
93Rule	AS	2007	only	-	Mar	lastSun	2:00s	0	-
94Rule	AS	2008	max	-	Apr	Sun>=1	2:00s	0	-
95Rule	AS	2008	max	-	Oct	Sun>=1	2:00s	1:00	-
96# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
97Zone Australia/Adelaide	9:14:20 -	LMT	1895 Feb
98			9:00	-	CST	1899 May
99			9:30	Aus	CST	1971
100			9:30	AS	CST
101
102# Tasmania
103#
104# From Paul Eggert (2005-08-16):
105# <http://www.bom.gov.au/climate/averages/tables/dst_times.shtml>
106# says King Island didn't observe DST from WWII until late 1971.
107#
108# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
109Rule	AT	1967	only	-	Oct	Sun>=1	2:00s	1:00	-
110Rule	AT	1968	only	-	Mar	lastSun	2:00s	0	-
111Rule	AT	1968	1985	-	Oct	lastSun	2:00s	1:00	-
112Rule	AT	1969	1971	-	Mar	Sun>=8	2:00s	0	-
113Rule	AT	1972	only	-	Feb	lastSun	2:00s	0	-
114Rule	AT	1973	1981	-	Mar	Sun>=1	2:00s	0	-
115Rule	AT	1982	1983	-	Mar	lastSun	2:00s	0	-
116Rule	AT	1984	1986	-	Mar	Sun>=1	2:00s	0	-
117Rule	AT	1986	only	-	Oct	Sun>=15	2:00s	1:00	-
118Rule	AT	1987	1990	-	Mar	Sun>=15	2:00s	0	-
119Rule	AT	1987	only	-	Oct	Sun>=22	2:00s	1:00	-
120Rule	AT	1988	1990	-	Oct	lastSun	2:00s	1:00	-
121Rule	AT	1991	1999	-	Oct	Sun>=1	2:00s	1:00	-
122Rule	AT	1991	2005	-	Mar	lastSun	2:00s	0	-
123Rule	AT	2000	only	-	Aug	lastSun	2:00s	1:00	-
124Rule	AT	2001	max	-	Oct	Sun>=1	2:00s	1:00	-
125Rule	AT	2006	only	-	Apr	Sun>=1	2:00s	0	-
126Rule	AT	2007	only	-	Mar	lastSun	2:00s	0	-
127Rule	AT	2008	max	-	Apr	Sun>=1	2:00s	0	-
128# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
129Zone Australia/Hobart	9:49:16	-	LMT	1895 Sep
130			10:00	-	EST	1916 Oct 1 2:00
131			10:00	1:00	EST	1917 Feb
132			10:00	Aus	EST	1967
133			10:00	AT	EST
134Zone Australia/Currie	9:35:28	-	LMT	1895 Sep
135			10:00	-	EST	1916 Oct 1 2:00
136			10:00	1:00	EST	1917 Feb
137			10:00	Aus	EST	1971 Jul
138			10:00	AT	EST
139
140# Victoria
141# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
142Rule	AV	1971	1985	-	Oct	lastSun	2:00s	1:00	-
143Rule	AV	1972	only	-	Feb	lastSun	2:00s	0	-
144Rule	AV	1973	1985	-	Mar	Sun>=1	2:00s	0	-
145Rule	AV	1986	1990	-	Mar	Sun>=15	2:00s	0	-
146Rule	AV	1986	1987	-	Oct	Sun>=15	2:00s	1:00	-
147Rule	AV	1988	1999	-	Oct	lastSun	2:00s	1:00	-
148Rule	AV	1991	1994	-	Mar	Sun>=1	2:00s	0	-
149Rule	AV	1995	2005	-	Mar	lastSun	2:00s	0	-
150Rule	AV	2000	only	-	Aug	lastSun	2:00s	1:00	-
151Rule	AV	2001	2007	-	Oct	lastSun	2:00s	1:00	-
152Rule	AV	2006	only	-	Apr	Sun>=1	2:00s	0	-
153Rule	AV	2007	only	-	Mar	lastSun	2:00s	0	-
154Rule	AV	2008	max	-	Apr	Sun>=1	2:00s	0	-
155Rule	AV	2008	max	-	Oct	Sun>=1	2:00s	1:00	-
156# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
157Zone Australia/Melbourne 9:39:52 -	LMT	1895 Feb
158			10:00	Aus	EST	1971
159			10:00	AV	EST
160
161# New South Wales
162# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
163Rule	AN	1971	1985	-	Oct	lastSun	2:00s	1:00	-
164Rule	AN	1972	only	-	Feb	27	2:00s	0	-
165Rule	AN	1973	1981	-	Mar	Sun>=1	2:00s	0	-
166Rule	AN	1982	only	-	Apr	Sun>=1	2:00s	0	-
167Rule	AN	1983	1985	-	Mar	Sun>=1	2:00s	0	-
168Rule	AN	1986	1989	-	Mar	Sun>=15	2:00s	0	-
169Rule	AN	1986	only	-	Oct	19	2:00s	1:00	-
170Rule	AN	1987	1999	-	Oct	lastSun	2:00s	1:00	-
171Rule	AN	1990	1995	-	Mar	Sun>=1	2:00s	0	-
172Rule	AN	1996	2005	-	Mar	lastSun	2:00s	0	-
173Rule	AN	2000	only	-	Aug	lastSun	2:00s	1:00	-
174Rule	AN	2001	2007	-	Oct	lastSun	2:00s	1:00	-
175Rule	AN	2006	only	-	Apr	Sun>=1	2:00s	0	-
176Rule	AN	2007	only	-	Mar	lastSun	2:00s	0	-
177Rule	AN	2008	max	-	Apr	Sun>=1	2:00s	0	-
178Rule	AN	2008	max	-	Oct	Sun>=1	2:00s	1:00	-
179# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
180Zone Australia/Sydney	10:04:52 -	LMT	1895 Feb
181			10:00	Aus	EST	1971
182			10:00	AN	EST
183Zone Australia/Broken_Hill 9:25:48 -	LMT	1895 Feb
184			10:00	-	EST	1896 Aug 23
185			9:00	-	CST	1899 May
186			9:30	Aus	CST	1971
187			9:30	AN	CST	2000
188			9:30	AS	CST
189
190# Lord Howe Island
191# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
192Rule	LH	1981	1984	-	Oct	lastSun	2:00	1:00	-
193Rule	LH	1982	1985	-	Mar	Sun>=1	2:00	0	-
194Rule	LH	1985	only	-	Oct	lastSun	2:00	0:30	-
195Rule	LH	1986	1989	-	Mar	Sun>=15	2:00	0	-
196Rule	LH	1986	only	-	Oct	19	2:00	0:30	-
197Rule	LH	1987	1999	-	Oct	lastSun	2:00	0:30	-
198Rule	LH	1990	1995	-	Mar	Sun>=1	2:00	0	-
199Rule	LH	1996	2005	-	Mar	lastSun	2:00	0	-
200Rule	LH	2000	only	-	Aug	lastSun	2:00	0:30	-
201Rule	LH	2001	2007	-	Oct	lastSun	2:00	0:30	-
202Rule	LH	2006	only	-	Apr	Sun>=1	2:00	0	-
203Rule	LH	2007	only	-	Mar	lastSun	2:00	0	-
204Rule	LH	2008	max	-	Apr	Sun>=1	2:00	0	-
205Rule	LH	2008	max	-	Oct	Sun>=1	2:00	0:30	-
206Zone Australia/Lord_Howe 10:36:20 -	LMT	1895 Feb
207			10:00	-	EST	1981 Mar
208			10:30	LH	LHST
209
210# Australian miscellany
211#
212# Ashmore Is, Cartier
213# no indigenous inhabitants; only seasonal caretakers
214# no times are set
215#
216# Coral Sea Is
217# no indigenous inhabitants; only meteorologists
218# no times are set
219#
220# Macquarie
221# Permanent occupation (scientific station) 1911-1915 and since 25 March 1948;
222# sealing and penguin oil station operated Nov 1899 to Apr 1919.  See the
223# Tasmania Parks & Wildlife Service history of sealing at Macquarie Island
224# <http://www.parks.tas.gov.au/index.aspx?base=1828>
225# <http://www.parks.tas.gov.au/index.aspx?base=1831>.
226# Guess that it was like Australia/Hobart while inhabited before 2010.
227#
228# From Steffen Thorsen (2010-03-10):
229# We got these changes from the Australian Antarctic Division:
230# - Macquarie Island will stay on UTC+11 for winter and therefore not
231# switch back from daylight savings time when other parts of Australia do
232# on 4 April.
233#
234# From Arthur David Olson (2013-05-23):
235# The 1919 transition is overspecified below so pre-2013 zics
236# will produce a binary file with an EST-type as the first 32-bit type;
237# this is required for correct handling of times before 1916 by
238# pre-2013 versions of localtime.
239Zone Antarctica/Macquarie 0	-	zzz	1899 Nov
240			10:00	-	EST	1916 Oct 1 2:00
241			10:00	1:00	EST	1917 Feb
242			10:00	Aus	EST	1919 Apr 1 0:00s
243			0	-	zzz	1948 Mar 25
244			10:00	Aus	EST	1967
245			10:00	AT	EST	2010 Apr 4 3:00
246			11:00	-	MIST	# Macquarie I Standard Time
247
248# Christmas
249# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
250Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
251			7:00	-	CXT	# Christmas Island Time
252
253# Cook Is
254# From Shanks & Pottenger:
255# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
256Rule	Cook	1978	only	-	Nov	12	0:00	0:30	HS
257Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
258Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	HS
259# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
260Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901		# Avarua
261			-10:30	-	CKT	1978 Nov 12	# Cook Is Time
262			-10:00	Cook	CK%sT
263
264# Cocos
265# These islands were ruled by the Ross family from about 1830 to 1978.
266# We don't know when standard time was introduced; for now, we guess 1900.
267# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
268Zone	Indian/Cocos	6:27:40	-	LMT	1900
269			6:30	-	CCT	# Cocos Islands Time
270
271# Fiji
272
273# Milne gives 11:55:44 for Suva.
274
275# From Alexander Krivenyshev (2009-11-10):
276# According to Fiji Broadcasting Corporation,  Fiji plans to re-introduce DST
277# from November 29th 2009  to April 25th 2010.
278#
279# "Daylight savings to commence this month"
280# <a href="http://www.radiofiji.com.fj/fullstory.php?id=23719">
281# http://www.radiofiji.com.fj/fullstory.php?id=23719
282# </a>
283# or
284# <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji01.html">
285# http://www.worldtimezone.com/dst_news/dst_news_fiji01.html
286# </a>
287
288# From Steffen Thorsen (2009-11-10):
289# The Fiji Government has posted some more details about the approved
290# amendments:
291# <a href="http://www.fiji.gov.fj/publish/page_16198.shtml">
292# http://www.fiji.gov.fj/publish/page_16198.shtml
293# </a>
294
295# From Steffen Thorsen (2010-03-03):
296# The Cabinet in Fiji has decided to end DST about a month early, on
297# 2010-03-28 at 03:00.
298# The plan is to observe DST again, from 2010-10-24 to sometime in March
299# 2011 (last Sunday a good guess?).
300#
301# Official source:
302# <a href="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">
303# 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
304# </a>
305#
306# A bit more background info here:
307# <a href="http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html">
308# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
309# </a>
310
311# From Alexander Krivenyshev (2010-10-24):
312# According to Radio Fiji and Fiji Times online, Fiji will end DST 3
313# weeks earlier than expected - on March 6, 2011, not March 27, 2011...
314# Here is confirmation from Government of the Republic of the Fiji Islands,
315# Ministry of Information (fiji.gov.fj) web site:
316# <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155">
317# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155
318# </a>
319# or
320# <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji04.html">
321# http://www.worldtimezone.com/dst_news/dst_news_fiji04.html
322# </a>
323
324# From Steffen Thorsen (2011-10-03):
325# Now the dates have been confirmed, and at least our start date
326# assumption was correct (end date was one week wrong).
327#
328# <a href="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">
329# www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-saving-starts-in-fiji&catid=71:press-releases&Itemid=155
330# </a>
331# which says
332# Members of the public are reminded to change their time to one hour in
333# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to
334# 2am on February 26 next year.
335
336# From Ken Rylander (2011-10-24)
337# Another change to the Fiji DST end date. In the TZ database the end date for
338# Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22.
339#
340# <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=5017:amendments-to-daylight-savings&catid=71:press-releases&Itemid=155">
341# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=5017:amendments-to-daylight-savings&catid=71:press-releases&Itemid=155
342# </a>
343# states:
344#
345# The end of daylight saving scheduled initially for the 26th of February 2012
346# has been brought forward to the 22nd of January 2012.
347# The commencement of daylight saving will remain unchanged and start
348# on the  23rd of October, 2011.
349
350# From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen:
351# The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate
352# today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st
353# October 2012 and end at 3 am on Sunday 20th January 2013.
354# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155
355
356# From the Fijian Government Media Center (2013-08-30) via David Wheeler:
357# Fiji will start daylight savings on Sunday 27th October, 2013 and end at 3am
358# on Sunday 19th January, 2014....  move clocks forward by one hour from 2am
359# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx
360#
361# From Paul Eggert (2013-09-09):
362# For now, guess that Fiji springs forward the Sunday before the fourth
363# Monday in October.  This matches both recent practice and
364# timeanddate.com's current spring-forward prediction.
365# For the January 2014 transition we guessed right while timeanddate.com
366# guessed wrong, so leave the fall-back prediction alone.
367
368# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
369Rule	Fiji	1998	1999	-	Nov	Sun>=1	2:00	1:00	S
370Rule	Fiji	1999	2000	-	Feb	lastSun	3:00	0	-
371Rule	Fiji	2009	only	-	Nov	29	2:00	1:00	S
372Rule	Fiji	2010	only	-	Mar	lastSun	3:00	0	-
373Rule	Fiji	2010	max	-	Oct	Sun>=21	2:00	1:00	S
374Rule	Fiji	2011	only	-	Mar	Sun>=1	3:00	0	-
375Rule	Fiji	2012	max	-	Jan	Sun>=18	3:00	0	-
376# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
377Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26	# Suva
378			12:00	Fiji	FJ%sT	# Fiji Time
379
380# French Polynesia
381# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
382Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct	# Rikitea
383			 -9:00	-	GAMT	# Gambier Time
384Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
385			 -9:30	-	MART	# Marquesas Time
386Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct	# Papeete
387			-10:00	-	TAHT	# Tahiti Time
388# Clipperton (near North America) is administered from French Polynesia;
389# it is uninhabited.
390
391# Guam
392# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
393Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
394			 9:39:00 -	LMT	1901		# Agana
395			10:00	-	GST	2000 Dec 23	# Guam
396			10:00	-	ChST	# Chamorro Standard Time
397
398# Kiribati
399# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
400Zone Pacific/Tarawa	 11:32:04 -	LMT	1901		# Bairiki
401			 12:00	-	GILT		 # Gilbert Is Time
402Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
403			-12:00	-	PHOT	1979 Oct # Phoenix Is Time
404			-11:00	-	PHOT	1995
405			 13:00	-	PHOT
406Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
407			-10:40	-	LINT	1979 Oct # Line Is Time
408			-10:00	-	LINT	1995
409			 14:00	-	LINT
410
411# N Mariana Is
412# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
413Zone Pacific/Saipan	-14:17:00 -	LMT	1844 Dec 31
414			 9:43:00 -	LMT	1901
415			 9:00	-	MPT	1969 Oct # N Mariana Is Time
416			10:00	-	MPT	2000 Dec 23
417			10:00	-	ChST	# Chamorro Standard Time
418
419# Marshall Is
420# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
421Zone Pacific/Majuro	11:24:48 -	LMT	1901
422			11:00	-	MHT	1969 Oct # Marshall Islands Time
423			12:00	-	MHT
424Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
425			11:00	-	MHT	1969 Oct
426			-12:00	-	KWAT	1993 Aug 20	# Kwajalein Time
427			12:00	-	MHT
428
429# Micronesia
430# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
431Zone Pacific/Chuuk	10:07:08 -	LMT	1901
432			10:00	-	CHUT			# Chuuk Time
433Zone Pacific/Pohnpei	10:32:52 -	LMT	1901		# Kolonia
434			11:00	-	PONT			# Pohnpei Time
435Zone Pacific/Kosrae	10:51:56 -	LMT	1901
436			11:00	-	KOST	1969 Oct	# Kosrae Time
437			12:00	-	KOST	1999
438			11:00	-	KOST
439
440# Nauru
441# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
442Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15	# Uaobe
443			11:30	-	NRT	1942 Mar 15	# Nauru Time
444			9:00	-	JST	1944 Aug 15
445			11:30	-	NRT	1979 May
446			12:00	-	NRT
447
448# New Caledonia
449# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
450Rule	NC	1977	1978	-	Dec	Sun>=1	0:00	1:00	S
451Rule	NC	1978	1979	-	Feb	27	0:00	0	-
452Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
453# Shanks & Pottenger say the following was at 2:00; go with IATA.
454Rule	NC	1997	only	-	Mar	 2	2:00s	0	-
455# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
456Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13
457			11:00	NC	NC%sT
458
459
460###############################################################################
461
462# New Zealand
463
464# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
465Rule	NZ	1927	only	-	Nov	 6	2:00	1:00	S
466Rule	NZ	1928	only	-	Mar	 4	2:00	0	M
467Rule	NZ	1928	1933	-	Oct	Sun>=8	2:00	0:30	S
468Rule	NZ	1929	1933	-	Mar	Sun>=15	2:00	0	M
469Rule	NZ	1934	1940	-	Apr	lastSun	2:00	0	M
470Rule	NZ	1934	1940	-	Sep	lastSun	2:00	0:30	S
471Rule	NZ	1946	only	-	Jan	 1	0:00	0	S
472# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
473# convenient notation for this so we must duplicate the Rule lines.
474Rule	NZ	1974	only	-	Nov	Sun>=1	2:00s	1:00	D
475Rule	Chatham	1974	only	-	Nov	Sun>=1	2:45s	1:00	D
476Rule	NZ	1975	only	-	Feb	lastSun	2:00s	0	S
477Rule	Chatham	1975	only	-	Feb	lastSun	2:45s	0	S
478Rule	NZ	1975	1988	-	Oct	lastSun	2:00s	1:00	D
479Rule	Chatham	1975	1988	-	Oct	lastSun	2:45s	1:00	D
480Rule	NZ	1976	1989	-	Mar	Sun>=1	2:00s	0	S
481Rule	Chatham	1976	1989	-	Mar	Sun>=1	2:45s	0	S
482Rule	NZ	1989	only	-	Oct	Sun>=8	2:00s	1:00	D
483Rule	Chatham	1989	only	-	Oct	Sun>=8	2:45s	1:00	D
484Rule	NZ	1990	2006	-	Oct	Sun>=1	2:00s	1:00	D
485Rule	Chatham	1990	2006	-	Oct	Sun>=1	2:45s	1:00	D
486Rule	NZ	1990	2007	-	Mar	Sun>=15	2:00s	0	S
487Rule	Chatham	1990	2007	-	Mar	Sun>=15	2:45s	0	S
488Rule	NZ	2007	max	-	Sep	lastSun	2:00s	1:00	D
489Rule	Chatham	2007	max	-	Sep	lastSun	2:45s	1:00	D
490Rule	NZ	2008	max	-	Apr	Sun>=1	2:00s	0	S
491Rule	Chatham	2008	max	-	Apr	Sun>=1	2:45s	0	S
492# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
493Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
494			11:30	NZ	NZ%sT	1946 Jan  1
495			12:00	NZ	NZ%sT
496Zone Pacific/Chatham	12:13:48 -	LMT	1957 Jan  1
497			12:45	Chatham	CHA%sT
498
499Link Pacific/Auckland Antarctica/McMurdo
500
501# Auckland Is
502# uninhabited; Maori and Moriori, colonial settlers, pastoralists, sealers,
503# and scientific personnel have wintered
504
505# Campbell I
506# minor whaling stations operated 1909/1914
507# scientific station operated 1941/1995;
508# previously whalers, sealers, pastoralists, and scientific personnel wintered
509# was probably like Pacific/Auckland
510
511###############################################################################
512
513
514# Niue
515# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
516Zone	Pacific/Niue	-11:19:40 -	LMT	1901		# Alofi
517			-11:20	-	NUT	1951	# Niue Time
518			-11:30	-	NUT	1978 Oct 1
519			-11:00	-	NUT
520
521# Norfolk
522# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
523Zone	Pacific/Norfolk	11:11:52 -	LMT	1901		# Kingston
524			11:12	-	NMT	1951	# Norfolk Mean Time
525			11:30	-	NFT		# Norfolk Time
526
527# Palau (Belau)
528# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
529Zone Pacific/Palau	8:57:56 -	LMT	1901		# Koror
530			9:00	-	PWT	# Palau Time
531
532# Papua New Guinea
533# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
534Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
535			9:48:32	-	PMMT	1895	# Port Moresby Mean Time
536			10:00	-	PGT		# Papua New Guinea Time
537
538# Pitcairn
539# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
540Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901		# Adamstown
541			-8:30	-	PNT	1998 Apr 27 00:00
542			-8:00	-	PST	# Pitcairn Standard Time
543
544# American Samoa
545Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
546			-11:22:48 -	LMT	1911
547			-11:30	-	SAMT	1950		# Samoa Time
548			-11:00	-	NST	1967 Apr	# N=Nome
549			-11:00	-	BST	1983 Nov 30	# B=Bering
550			-11:00	-	SST			# S=Samoa
551
552# Samoa
553
554# From Steffen Thorsen (2009-10-16):
555# We have been in contact with the government of Samoa again, and received
556# the following info:
557#
558# "Cabinet has now approved Daylight Saving to be effected next year
559# commencing from the last Sunday of September 2010 and conclude first
560# Sunday of April 2011."
561#
562# Background info:
563# <a href="http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html">
564# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
565# </a>
566#
567# Samoa's Daylight Saving Time Act 2009 is available here, but does not
568# contain any dates:
569# <a href="http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf">
570# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
571# </a>
572
573# From Laupue Raymond Hughes (2010-10-07):
574# Please see
575# <a href="http://www.mcil.gov.ws">
576# http://www.mcil.gov.ws
577# </a>,
578# the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday
579# September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight
580# to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks
581# backwards from 1:00am to 12:00am"
582
583# From Laupue Raymond Hughes (2011-03-07):
584# I believe this will be posted shortly on the website
585# <a href="http://www.mcil.gov.ws">
586# www.mcil.gov.ws
587# </a>
588#
589# PUBLIC NOTICE ON DAYLIGHT SAVING TIME
590#
591# Pursuant to the Daylight Saving Act 2009 and Cabinets decision,
592# businesses and the general public are hereby advised that daylight
593# saving time is on the first Saturday of April 2011 (02/04/11).
594#
595# The public is therefore advised that when the standard time strikes
596# the hour of four oclock (4.00am or 0400 Hours) on the 2nd April 2011,
597# then all instruments used to measure standard time are to be
598# adjusted/changed to three oclock (3:00am or 0300Hrs).
599#
600# Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE,
601# INDUSTRY AND LABOUR 28th February 2011
602
603# From David Zuelke (2011-05-09):
604# Subject: Samoa to move timezone from east to west of international date line
605#
606# <a href="http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963">
607# http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963
608# </a>
609
610# From Mark Sim-Smith (2011-08-17):
611# I have been in contact with Leilani Tuala Warren from the Samoa Law
612# Reform Commission, and she has sent me a copy of the Bill that she
613# confirmed has been passed...Most of the sections are about maps rather
614# than the time zone change, but I'll paste the relevant bits below. But
615# the essence is that at midnight 29 Dec (UTC-11 I suppose), Samoa
616# changes from UTC-11 to UTC+13:
617#
618# International Date Line Bill 2011
619#
620# AN ACT to provide for the change to standard time in Samoa and to make
621# consequential amendments to the position of the International Date
622# Line, and for related purposes.
623#
624# BE IT ENACTED by the Legislative Assembly of Samoa in Parliament
625# assembled as follows:
626#
627# 1. Short title and commencement-(1) This Act may be cited as the
628# International Date Line Act 2011. (2) Except for section 5(3) this Act
629# commences at 12 o'clock midnight, on Thursday 29th December 2011. (3)
630# Section 5(3) commences on the date of assent by the Head of State.
631#
632# [snip]
633#
634# 3. Interpretation - [snip] "Samoa standard time" in this Act and any
635# other statute of Samoa which refers to 'Samoa standard time' means the
636# time 13 hours in advance of Co-ordinated Universal Time.
637#
638# 4. Samoa standard time - (1) Upon the commencement of this Act, Samoa
639# standard time shall be set at 13 hours in advance of Co-ordinated
640# Universal Time for the whole of Samoa. (2) All references to Samoa's
641# time zone and to Samoa standard time in Samoa in all legislation and
642# instruments after the commencement of this Act shall be references to
643# Samoa standard time as provided for in this Act. (3) Nothing in this
644# Act affects the provisions of the Daylight Saving Act 2009, except that
645# it defines Samoa standard time....
646
647# From Laupue Raymond Hughes (2011-09-02):
648# <a href="http://www.mcil.gov.ws/mcil_publications.html">
649# http://www.mcil.gov.ws/mcil_publications.html
650# </a>
651#
652# here is the official website publication for Samoa DST and dateline change
653#
654# DST
655# Year	End	Time	Start	Time
656# 2011	- - -	- - -	24 September	3:00am to 4:00am
657# 2012	01 April	4:00am to 3:00am	- - -	- - -
658#
659# Dateline Change skip Friday 30th Dec 2011
660# Thursday 29th December 2011	23:59:59 Hours
661# Saturday 31st December 2011	00:00:00 Hours
662#
663# Clarification by Tim Parenti (2012-01-03):
664# Although Samoa has used Daylight Saving Time in the 2010-2011 and 2011-2012
665# seasons, there is not yet any indication that this trend will continue on
666# a regular basis. For now, we have explicitly listed the transitions below.
667#
668# From Nicky (2012-09-10):
669# Daylight Saving Time commences on Sunday 30th September 2012 and
670# ends on Sunday 7th of April 2013.
671#
672# Please find link below for more information.
673# http://www.mcil.gov.ws/mcil_publications.html
674#
675# That publication also includes dates for Summer of 2013/4 as well
676# which give the impression of a pattern in selecting dates for the
677# future, so for now, we will guess this will continue.
678
679# Western Samoa
680# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
681Rule	WS	2012	max	-	Sep	lastSun	3:00	1	D
682Rule	WS	2012	max	-	Apr	Sun>=1	4:00	0	-
683# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
684Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
685			-11:26:56 -	LMT	1911
686			-11:30	-	SAMT	1950		# Samoa Time
687			-11:00	-	WST	2010 Sep 26
688			-11:00	1:00	WSDT	2011 Apr 2 4:00
689			-11:00	-	WST	2011 Sep 24 3:00
690			-11:00	1:00	WSDT	2011 Dec 30
691			 13:00	1:00	WSDT	2012 Apr Sun>=1 4:00
692			 13:00	WS	WS%sT
693
694# Solomon Is
695# excludes Bougainville, for which see Papua New Guinea
696# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
697Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct	# Honiara
698			11:00	-	SBT	# Solomon Is Time
699
700# Tokelau Is
701#
702# From Gwillim Law (2011-12-29)
703# A correspondent informed me that Tokelau, like Samoa, will be skipping
704# December 31 this year ...
705#
706# From Steffen Thorsen (2012-07-25)
707# ... we double checked by calling hotels and offices based in Tokelau asking
708# about the time there, and they all told a time that agrees with UTC+13....
709# Shanks says UTC-10 from 1901 [but] ... there is a good chance the change
710# actually was to UTC-11 back then.
711#
712# From Paul Eggert (2012-07-25)
713# A Google Books snippet of Appendix to the Journals of the House of
714# Representatives of New Zealand, Session 1948,
715# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
716# was "11 hours slow on G.M.T."  Go with Thorsen and assume Shanks & Pottenger
717# are off by an hour starting in 1901.
718
719# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
720Zone	Pacific/Fakaofo	-11:24:56 -	LMT	1901
721			-11:00	-	TKT 2011 Dec 30	# Tokelau Time
722			13:00	-	TKT
723
724# Tonga
725# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
726Rule	Tonga	1999	only	-	Oct	 7	2:00s	1:00	S
727Rule	Tonga	2000	only	-	Mar	19	2:00s	0	-
728Rule	Tonga	2000	2001	-	Nov	Sun>=1	2:00	1:00	S
729Rule	Tonga	2001	2002	-	Jan	lastSun	2:00	0	-
730# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
731Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
732			12:20	-	TOT	1941 # Tonga Time
733			13:00	-	TOT	1999
734			13:00	Tonga	TO%sT
735
736# Tuvalu
737# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
738Zone Pacific/Funafuti	11:56:52 -	LMT	1901
739			12:00	-	TVT	# Tuvalu Time
740
741
742# US minor outlying islands
743
744# Howland, Baker
745# Howland was mined for guano by American companies 1857-1878 and British
746# 1886-1891; Baker was similar but exact dates are not known.
747# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
748# uninhabited thereafter.
749# Howland observed Hawaii Standard Time (UT-10:30) in 1937;
750# see page 206 of Elgen M. Long and Marie K. Long,
751# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
752# So most likely Howland and Baker observed Hawaii Time from 1935
753# until they were abandoned after the war.
754
755# Jarvis
756# Mined for guano by American companies 1857-1879 and British 1883?-1891?.
757# Inhabited by civilians 1935-1942; IGY scientific base 1957-1958;
758# uninhabited thereafter.
759# no information; was probably like Pacific/Kiritimati
760
761# Johnston
762#
763# From Paul Eggert (2013-09-03):
764# In his memoirs of June 6th to October 4, 1945
765# <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
766# "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM
767# Johnston time, 1:30 AM Kwajalein time."  This was in June 1945, and
768# confirms that Johnston kept the same time as Honolulu in summer 1945.
769# We have no better information, so for now, assume this has been true
770# indefinitely into the past.
771#
772# See 'northamerica' for Pacific/Johnston.
773
774# Kingman
775# uninhabited
776
777# Midway
778#
779# From Mark Brader (2005-01-23):
780# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
781# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
782# reproduced a Pan American Airways timeables from 1936, for their weekly
783# "Orient Express" flights between San Francisco and Manila, and connecting
784# flights to Chicago and the US East Coast.  As it uses some time zone
785# designations that I've never seen before:....
786# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I.   H.L.T. Ar. 5:30P Sun.
787#  "   3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A  "
788#
789Zone Pacific/Midway	-11:49:28 -	LMT	1901
790			-11:00	-	NST	1956 Jun  3
791			-11:00	1:00	NDT	1956 Sep  2
792			-11:00	-	NST	1967 Apr	# N=Nome
793			-11:00	-	BST	1983 Nov 30	# B=Bering
794			-11:00	-	SST			# S=Samoa
795
796# Palmyra
797# uninhabited since World War II; was probably like Pacific/Kiritimati
798
799# Wake
800# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
801Zone	Pacific/Wake	11:06:28 -	LMT	1901
802			12:00	-	WAKT	# Wake Time
803
804
805# Vanuatu
806# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
807Rule	Vanuatu	1983	only	-	Sep	25	0:00	1:00	S
808Rule	Vanuatu	1984	1991	-	Mar	Sun>=23	0:00	0	-
809Rule	Vanuatu	1984	only	-	Oct	23	0:00	1:00	S
810Rule	Vanuatu	1985	1991	-	Sep	Sun>=23	0:00	1:00	S
811Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
812Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
813# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
814Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13		# Vila
815			11:00	Vanuatu	VU%sT	# Vanuatu Time
816
817# Wallis and Futuna
818# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
819Zone	Pacific/Wallis	12:15:20 -	LMT	1901
820			12:00	-	WFT	# Wallis & Futuna Time
821
822###############################################################################
823
824# NOTES
825
826# This data is by no means authoritative; if you think you know better,
827# go ahead and edit the file (and please send any changes to
828# tz@iana.org for general use in the future).
829
830# From Paul Eggert (2013-02-21):
831# A good source for time zone historical data outside the U.S. is
832# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
833# San Diego: ACS Publications, Inc. (2003).
834#
835# Gwillim Law writes that a good source
836# for recent time zone data is the International Air Transport
837# Association's Standard Schedules Information Manual (IATA SSIM),
838# published semiannually.  Law sent in several helpful summaries
839# of the IATA's data after 1990.
840#
841# Except where otherwise noted, Shanks & Pottenger is the source for
842# entries through 1990, and IATA SSIM is the source for entries afterwards.
843#
844# Another source occasionally used is Edward W. Whitman, World Time Differences,
845# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
846# I found in the UCLA library.
847#
848# For data circa 1899, a common source is:
849# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
850# <http://www.jstor.org/stable/1774359>.
851#
852# A reliable and entertaining source about time zones is
853# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
854#
855# I invented the abbreviations marked `*' in the following table;
856# the rest are from earlier versions of this file, or from other sources.
857# Corrections are welcome!
858#		std dst
859#		LMT	Local Mean Time
860#	  8:00	WST WST	Western Australia
861#	  8:45	CWST CWST Central Western Australia*
862#	  9:00	JST	Japan
863#	  9:30	CST CST	Central Australia
864#	 10:00	EST EST	Eastern Australia
865#	 10:00	ChST	Chamorro
866#	 10:30	LHST LHST Lord Howe*
867#	 11:30	NZMT NZST New Zealand through 1945
868#	 12:00	NZST NZDT New Zealand 1946-present
869#	 12:45	CHAST CHADT Chatham*
870#	-11:00	SST	Samoa
871#	-10:00	HST	Hawaii
872#	- 8:00	PST	Pitcairn*
873#
874# See the `northamerica' file for Hawaii.
875# See the `southamerica' file for Easter I and the Galapagos Is.
876
877###############################################################################
878
879# Australia
880
881# From Paul Eggert (2005-12-08):
882# <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">
883# Implementation Dates of Daylight Saving Time within Australia
884# </a> summarizes daylight saving issues in Australia.
885
886# From Arthur David Olson (2005-12-12):
887# <a href="http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving">
888# Lawlink NSW:Daylight Saving in New South Wales
889# </a> covers New South Wales in particular.
890
891# From John Mackin (1991-03-06):
892# We in Australia have _never_ referred to DST as `daylight' time.
893# It is called `summer' time.  Now by a happy coincidence, `summer'
894# and `standard' happen to start with the same letter; hence, the
895# abbreviation does _not_ change...
896# The legislation does not actually define abbreviations, at least
897# in this State, but the abbreviation is just commonly taken to be the
898# initials of the phrase, and the legislation here uniformly uses
899# the phrase `summer time' and does not use the phrase `daylight
900# time'.
901# Announcers on the Commonwealth radio network, the ABC (for Australian
902# Broadcasting Commission), use the phrases `Eastern Standard Time'
903# or `Eastern Summer Time'.  (Note, though, that as I say in the
904# current australasia file, there is really no such thing.)  Announcers
905# on its overseas service, Radio Australia, use the same phrases
906# prefixed by the word `Australian' when referring to local times;
907# time announcements on that service, naturally enough, are made in UTC.
908
909# From Arthur David Olson (1992-03-08):
910# Given the above, what's chosen for year-round use is:
911#	CST	for any place operating at a GMTOFF of 9:30
912#	WST	for any place operating at a GMTOFF of 8:00
913#	EST	for any place operating at a GMTOFF of 10:00
914
915# From Chuck Soper (2006-06-01):
916# I recently found this Australian government web page on time zones:
917# <http://www.australia.gov.au/about-australia-13time>
918# And this government web page lists time zone names and abbreviations:
919# <http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml>
920
921# From Paul Eggert (2001-04-05), summarizing a long discussion about "EST"
922# versus "AEST" etc.:
923#
924# I see the following points of dispute:
925#
926# * How important are unique time zone abbreviations?
927#
928#   Here I tend to agree with the point (most recently made by Chris
929#   Newman) that unique abbreviations should not be essential for proper
930#   operation of software.  We have other instances of ambiguity
931#   (e.g. "IST" denoting both "Israel Standard Time" and "Indian
932#   Standard Time"), and they are not likely to go away any time soon.
933#   In the old days, some software mistakenly relied on unique
934#   abbreviations, but this is becoming less true with time, and I don't
935#   think it's that important to cater to such software these days.
936#
937#   On the other hand, there is another motivation for unambiguous
938#   abbreviations: it cuts down on human confusion.  This is
939#   particularly true for Australia, where "EST" can mean one thing for
940#   time T and a different thing for time T plus 1 second.
941#
942# * Does the relevant legislation indicate which abbreviations should be used?
943#
944#   Here I tend to think that things are a mess, just as they are in
945#   many other countries.  We Americans are currently disagreeing about
946#   which abbreviation to use for the newly legislated Chamorro Standard
947#   Time, for example.
948#
949#   Personally, I would prefer to use common practice; I would like to
950#   refer to legislation only for examples of common practice, or as a
951#   tiebreaker.
952#
953# * Do Australians more often use "Eastern Daylight Time" or "Eastern
954#   Summer Time"?  Do they typically prefix the time zone names with
955#   the word "Australian"?
956#
957#   My own impression is that both "Daylight Time" and "Summer Time" are
958#   common and are widely understood, but that "Summer Time" is more
959#   popular; and that the leading "A" is also common but is omitted more
960#   often than not.  I just used AltaVista advanced search and got the
961#   following count of page hits:
962#
963#     1,103 "Eastern Summer Time" AND domain:au
964#       971 "Australian Eastern Summer Time" AND domain:au
965#       613 "Eastern Daylight Time" AND domain:au
966#       127 "Australian Eastern Daylight Time" AND domain:au
967#
968#   Here "Summer" seems quite a bit more popular than "Daylight",
969#   particularly when we know the time zone is Australian and not US,
970#   say.  The "Australian" prefix seems to be popular for Eastern Summer
971#   Time, but unpopular for Eastern Daylight Time.
972#
973#   For abbreviations, tools like AltaVista are less useful because of
974#   ambiguity.  Many hits are not really time zones, unfortunately, and
975#   many hits denote US time zones and not Australian ones.  But here
976#   are the hit counts anyway:
977#
978#     161,304 "EST" and domain:au
979#      25,156 "EDT" and domain:au
980#      18,263 "AEST" and domain:au
981#      10,416 "AEDT" and domain:au
982#
983#      14,538 "CST" and domain:au
984#       5,728 "CDT" and domain:au
985#         176 "ACST" and domain:au
986#          29 "ACDT" and domain:au
987#
988#       7,539 "WST" and domain:au
989#          68 "AWST" and domain:au
990#
991#   This data suggest that Australians tend to omit the "A" prefix in
992#   practice.  The situation for "ST" versus "DT" is less clear, given
993#   the ambiguities involved.
994#
995# * How do Australians feel about the abbreviations in the tz database?
996#
997#   If you just count Australians on this list, I count 2 in favor and 3
998#   against.  One of the "against" votes (David Keegel) counseled delay,
999#   saying that both AEST/AEDT and EST/EST are widely used and
1000#   understood in Australia.
1001
1002# From Paul Eggert (1995-12-19):
1003# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1004# Mark Prior writes that his newspaper
1005# reports that NSW's fall 1995 change will occur at 2:00,
1006# but Robert Elz says it's been 3:00 in Victoria since 1970
1007# and perhaps the newspaper's `2:00' is referring to standard time.
1008# For now we'll continue to assume 2:00s for changes since 1960.
1009
1010# From Eric Ulevik (1998-01-05):
1011#
1012# Here are some URLs to Australian time legislation. These URLs are stable,
1013# and should probably be included in the data file. There are probably more
1014# relevant entries in this database.
1015#
1016# NSW (including LHI and Broken Hill):
1017# <a href="http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html">
1018# Standard Time Act 1987 (updated 1995-04-04)
1019# </a>
1020# ACT
1021# <a href="http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html">
1022# Standard Time and Summer Time Act 1972
1023# </a>
1024# SA
1025# <a href="http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html">
1026# Standard Time Act, 1898
1027# </a>
1028
1029# From David Grosz (2005-06-13):
1030# It was announced last week that Daylight Saving would be extended by
1031# one week next year to allow for the 2006 Commonwealth Games.
1032# Daylight Saving is now to end for next year only on the first Sunday
1033# in April instead of the last Sunday in March.
1034#
1035# From Gwillim Law (2005-06-14):
1036# I did some Googling and found that all of those states (and territory) plan
1037# to extend DST together in 2006.
1038# ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt
1039# New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html
1040# South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html
1041# Tasmania: http://www.media.tas.gov.au/release.php?id=14772
1042# Victoria: I wasn't able to find anything separate, but the other articles
1043# allude to it.
1044# But not Queensland
1045# http://www.news.com.au/story/0,10117,15564030-1248,00.html.
1046
1047# Northern Territory
1048
1049# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1050# # The NORTHERN TERRITORY..  [ Courtesy N.T. Dept of the Chief Minister ]
1051# #					[ Nov 1990 ]
1052# #	N.T. have never utilised any DST due to sub-tropical/tropical location.
1053# ...
1054# Zone        Australia/North         9:30    -       CST
1055
1056# From Bradley White (1991-03-04):
1057# A recent excerpt from an Australian newspaper...
1058# the Northern Territory do[es] not have daylight saving.
1059
1060# Western Australia
1061
1062# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1063# #  The state of WESTERN AUSTRALIA..  [ Courtesy W.A. dept Premier+Cabinet ]
1064# #						[ Nov 1990 ]
1065# #	W.A. suffers from a great deal of public and political opposition to
1066# #	DST in principle. A bill is brought before parliament in most years, but
1067# #	usually defeated either in the upper house, or in party caucus
1068# #	before reaching parliament.
1069# ...
1070# Zone	Australia/West		8:00	AW	%sST
1071# ...
1072# Rule	AW	1974	only	-	Oct	lastSun	2:00	1:00	D
1073# Rule	AW	1975	only	-	Mar	Sun>=1	3:00	0	W
1074# Rule	AW	1983	only	-	Oct	lastSun	2:00	1:00	D
1075# Rule	AW	1984	only	-	Mar	Sun>=1	3:00	0	W
1076
1077# From Bradley White (1991-03-04):
1078# A recent excerpt from an Australian newspaper...
1079# Western Australia...do[es] not have daylight saving.
1080
1081# From John D. Newman via Bradley White (1991-11-02):
1082# Western Australia is still on "winter time". Some DH in Sydney
1083# rang me at home a few days ago at 6.00am. (He had just arrived at
1084# work at 9.00am.)
1085# W.A. is switching to Summer Time on Nov 17th just to confuse
1086# everybody again.
1087
1088# From Arthur David Olson (1992-03-08):
1089# The 1992 ending date used in the rules is a best guess;
1090# it matches what was used in the past.
1091
1092# <a href="http://www.bom.gov.au/faq/faqgen.htm">
1093# The Australian Bureau of Meteorology FAQ
1094# </a> (1999-09-27) writes that Giles Meteorological Station uses
1095# South Australian time even though it's located in Western Australia.
1096
1097# Queensland
1098# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1099# #   The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ]
1100# #						[ Dec 1990 ]
1101# ...
1102# Zone	Australia/Queensland	10:00	AQ	%sST
1103# ...
1104# Rule	AQ	1971	only	-	Oct	lastSun	2:00	1:00	D
1105# Rule	AQ	1972	only	-	Feb	lastSun	3:00	0	E
1106# Rule	AQ	1989	max	-	Oct	lastSun	2:00	1:00	D
1107# Rule	AQ	1990	max	-	Mar	Sun>=1	3:00	0	E
1108
1109# From Bradley White (1989-12-24):
1110# "Australia/Queensland" now observes daylight time (i.e. from
1111# October 1989).
1112
1113# From Bradley White (1991-03-04):
1114# A recent excerpt from an Australian newspaper...
1115# ...Queensland...[has] agreed to end daylight saving
1116# at 3am tomorrow (March 3)...
1117
1118# From John Mackin (1991-03-06):
1119# I can certainly confirm for my part that Daylight Saving in NSW did in fact
1120# end on Sunday, 3 March.  I don't know at what hour, though.  (It surprised
1121# me.)
1122
1123# From Bradley White (1992-03-08):
1124# ...there was recently a referendum in Queensland which resulted
1125# in the experimental daylight saving system being abandoned. So, ...
1126# ...
1127# Rule	QLD	1989	1991	-	Oct	lastSun	2:00	1:00	D
1128# Rule	QLD	1990	1992	-	Mar	Sun>=1	3:00	0	S
1129# ...
1130
1131# From Arthur David Olson (1992-03-08):
1132# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes.
1133
1134# From Christopher Hunt (2006-11-21), after an advance warning
1135# from Jesper Norgaard Welen (2006-11-01):
1136# WA are trialing DST for three years.
1137# <http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf>
1138
1139# From Rives McDow (2002-04-09):
1140# The most interesting region I have found consists of three towns on the
1141# southern coast....  South Australia observes daylight saving time; Western
1142# Australia does not.  The two states are one and a half hours apart.  The
1143# residents decided to forget about this nonsense of changing the clock so
1144# much and set the local time 20 hours and 45 minutes from the
1145# international date line, or right in the middle of the time of South
1146# Australia and Western Australia....
1147#
1148# From Paul Eggert (2002-04-09):
1149# This is confirmed by the section entitled
1150# "What's the deal with time zones???" in
1151# <http://www.earthsci.unimelb.edu.au/~awatkins/null.html>.
1152#
1153# From Alex Livingston (2006-12-07):
1154# ... it was just on four years ago that I drove along the Eyre Highway,
1155# which passes through eastern Western Australia close to the southern
1156# coast of the continent.
1157#
1158# I paid particular attention to the time kept there. There can be no
1159# dispute that UTC+08:45 was considered "the time" from the border
1160# village just inside the border with South Australia to as far west
1161# as just east of Caiguna. There can also be no dispute that Eucla is
1162# the largest population centre in this zone....
1163#
1164# Now that Western Australia is observing daylight saving, the
1165# question arose whether this part of the state would follow suit. I
1166# just called the border village and confirmed that indeed they have,
1167# meaning that they are now observing UTC+09:45.
1168#
1169# (2006-12-09):
1170# I personally doubt that either experimentation with daylight saving
1171# in WA or its introduction in SA had anything to do with the genesis
1172# of this time zone.  My hunch is that it's been around since well
1173# before 1975.  I remember seeing it noted on road maps decades ago.
1174
1175# From Paul Eggert (2006-12-15):
1176# For lack of better info, assume the tradition dates back to the
1177# introduction of standard time in 1895.
1178
1179
1180# southeast Australia
1181#
1182# From Paul Eggert (2007-07-23):
1183# Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT
1184# end DST the first Sunday in April and start DST the first Sunday in October.
1185# http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html
1186
1187
1188# South Australia
1189
1190# From Bradley White (1991-03-04):
1191# A recent excerpt from an Australian newspaper...
1192# ...South Australia...[has] agreed to end daylight saving
1193# at 3am tomorrow (March 3)...
1194
1195# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1196# #   The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ]
1197# #						[ Nov 1990 ]
1198# ...
1199# Zone	Australia/South		9:30	AS	%sST
1200# ...
1201# Rule	 AS	1971	max	-	Oct	lastSun	2:00	1:00	D
1202# Rule	 AS	1972	1985	-	Mar	Sun>=1	3:00	0	C
1203# Rule	 AS	1986	1990	-	Mar	Sun>=15	3:00	0	C
1204# Rule	 AS	1991	max	-	Mar	Sun>=1	3:00	0	C
1205
1206# From Bradley White (1992-03-11):
1207# Recent correspondence with a friend in Adelaide
1208# contained the following exchange:  "Due to the Adelaide Festival,
1209# South Australia delays setting back our clocks for a few weeks."
1210
1211# From Robert Elz (1992-03-13):
1212# I heard that apparently (or at least, it appears that)
1213# South Aus will have an extra 3 weeks daylight saving every even
1214# numbered year (from 1990).  That's when the Adelaide Festival
1215# is on...
1216
1217# From Robert Elz (1992-03-16, 00:57:07 +1000):
1218# DST didn't end in Adelaide today (yesterday)....
1219# But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever...
1220# (it's just as likely to be "the Sunday we pick for this year"...).
1221
1222# From Bradley White (1994-04-11):
1223# If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March,
1224# 1994 was at +0930 as John Connolly's customer seems to assert, then I can
1225# only conclude that the actual rule is more complicated....
1226
1227# From John Warburton (1994-10-07):
1228# The new Daylight Savings dates for South Australia ...
1229# was gazetted in the Government Hansard on Sep 26 1994....
1230# start on last Sunday in October and end in last sunday in March.
1231
1232# From Paul Eggert (2007-07-23):
1233# See "southeast Australia" above for 2008 and later.
1234
1235# Tasmania
1236
1237# The rules for 1967 through 1991 were reported by George Shepherd
1238# via Simon Woodhead via Robert Elz (1991-03-06):
1239# #  The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
1240# #					[ Nov 1990 ]
1241
1242# From Bill Hart via Guy Harris (1991-10-10):
1243# Oh yes, the new daylight savings rules are uniquely tasmanian, we have
1244# 6 weeks a year now when we are out of sync with the rest of Australia
1245# (but nothing new about that).
1246
1247# From Alex Livingston (1999-10-04):
1248# I heard on the ABC (Australian Broadcasting Corporation) radio news on the
1249# (long) weekend that Tasmania, which usually goes its own way in this regard,
1250# has decided to join with most of NSW, the ACT, and most of Victoria
1251# (Australia) and start daylight saving on the last Sunday in August in 2000
1252# instead of the first Sunday in October.
1253
1254# Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules:
1255# http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300
1256
1257# From Paul Eggert (2007-07-23):
1258# See "southeast Australia" above for 2008 and later.
1259
1260# Victoria
1261
1262# The rules for 1971 through 1991 were reported by George Shepherd
1263# via Simon Woodhead via Robert Elz (1991-03-06):
1264# #   The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
1265# #						[ Nov 1990 ]
1266
1267# From Scott Harrington (2001-08-29):
1268# On KQED's "City Arts and Lectures" program last night I heard an
1269# interesting story about daylight savings time.  Dr. John Heilbron was
1270# discussing his book "The Sun in the Church: Cathedrals as Solar
1271# Observatories"[1], and in particular the Shrine of Remembrance[2] located
1272# in Melbourne, Australia.
1273#
1274# Apparently the shrine's main purpose is a beam of sunlight which
1275# illuminates a special spot on the floor at the 11th hour of the 11th day
1276# of the 11th month (Remembrance Day) every year in memory of Australia's
1277# fallen WWI soldiers.  And if you go there on Nov. 11, at 11am local time,
1278# you will indeed see the sunbeam illuminate the special spot at the
1279# expected time.
1280#
1281# However, that is only because of some special mirror contraption that had
1282# to be employed, since due to daylight savings time, the true solar time of
1283# the remembrance moment occurs one hour later (or earlier?).  Perhaps
1284# someone with more information on this jury-rig can tell us more.
1285#
1286# [1] http://www.hup.harvard.edu/catalog/HEISUN.html
1287# [2] http://www.shrine.org.au
1288
1289# From Paul Eggert (2007-07-23):
1290# See "southeast Australia" above for 2008 and later.
1291
1292# New South Wales
1293
1294# From Arthur David Olson:
1295# New South Wales and subjurisdictions have their own ideas of a fun time.
1296# Based on law library research by John Mackin,
1297# who notes:
1298#	In Australia, time is not legislated federally, but rather by the
1299#	individual states.  Thus, while such terms as ``Eastern Standard Time''
1300#	[I mean, of course, Australian EST, not any other kind] are in common
1301#	use, _they have NO REAL MEANING_, as they are not defined in the
1302#	legislation.  This is very important to understand.
1303#	I have researched New South Wales time only...
1304
1305# From Eric Ulevik (1999-05-26):
1306# DST will start in NSW on the last Sunday of August, rather than the usual
1307# October in 2000.  [See: Matthew Moore,
1308# <a href="http://www.smh.com.au/news/9905/26/pageone/pageone4.html">
1309# Two months more daylight saving
1310# </a>
1311# Sydney Morning Herald (1999-05-26).]
1312
1313# From Paul Eggert (1999-09-27):
1314# See the following official NSW source:
1315# <a href="http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ">
1316# Daylight Saving in New South Wales.
1317# </a>
1318#
1319# Narrabri Shire (NSW) council has announced it will ignore the extension of
1320# daylight saving next year.  See:
1321# <a href="http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm">
1322# Narrabri Council to ignore daylight saving
1323# </a> (1999-07-22).  For now, we'll wait to see if this really happens.
1324#
1325# Victoria will following NSW.  See:
1326# <a href="http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm">
1327# Vic to extend daylight saving
1328# </a> (1999-07-28).
1329#
1330# However, South Australia rejected the DST request.  See:
1331# <a href="http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm">
1332# South Australia rejects Olympics daylight savings request
1333# </a> (1999-07-19).
1334#
1335# Queensland also will not observe DST for the Olympics.  See:
1336# <a href="http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm">
1337# Qld says no to daylight savings for Olympics
1338# </a> (1999-06-01), which quotes Queensland Premier Peter Beattie as saying
1339# ``Look you've got to remember in my family when this came up last time
1340# I voted for it, my wife voted against it and she said to me it's all very
1341# well for you, you don't have to worry about getting the children out of
1342# bed, getting them to school, getting them to sleep at night.
1343# I've been through all this argument domestically...my wife rules.''
1344#
1345# Broken Hill will stick with South Australian time in 2000.  See:
1346# <a href="http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm">
1347# Broken Hill to be behind the times
1348# </a> (1999-07-21).
1349
1350# IATA SSIM (1998-09) says that the spring 2000 change for Australian
1351# Capital Territory, New South Wales except Lord Howe Island and Broken
1352# Hill, and Victoria will be August 27, presumably due to the Sydney Olympics.
1353
1354# From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29:
1355# The Queensland Premier Peter Beattie is encouraging northern NSW
1356# towns to use Queensland time.
1357
1358# From Paul Eggert (2007-07-23):
1359# See "southeast Australia" above for 2008 and later.
1360
1361# Yancowinna
1362
1363# From John Mackin (1989-01-04):
1364# `Broken Hill' means the County of Yancowinna.
1365
1366# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1367# # YANCOWINNA..  [ Confirmation courtesy of Broken Hill Postmaster ]
1368# #					[ Dec 1990 ]
1369# ...
1370# # Yancowinna uses Central Standard Time, despite [its] location on the
1371# # New South Wales side of the S.A. border. Most business and social dealings
1372# # are with CST zones, therefore CST is legislated by local government
1373# # although the switch to Summer Time occurs in line with N.S.W. There have
1374# # been years when this did not apply, but the historical data is not
1375# # presently available.
1376# Zone	Australia/Yancowinna	9:30	 AY	%sST
1377# ...
1378# Rule	 AY	1971	1985	-	Oct	lastSun	2:00	1:00	D
1379# Rule	 AY	1972	only	-	Feb	lastSun	3:00	0	C
1380# [followed by other Rules]
1381
1382# Lord Howe Island
1383
1384# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1385# LHI...		[ Courtesy of Pauline Van Winsen ]
1386#					[ Dec 1990 ]
1387# Lord Howe Island is located off the New South Wales coast, and is half an
1388# hour ahead of NSW time.
1389
1390# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
1391# Lord Howe Island summer time in 2000/2001 will commence on the same
1392# date as the rest of NSW (i.e. 2000-08-27).  For your information the
1393# Lord Howe Island Board (controlling authority for the Island) is
1394# seeking the community's views on various options for summer time
1395# arrangements on the Island, e.g. advance clocks by 1 full hour
1396# instead of only 30 minutes.  [Dependent] on the wishes of residents
1397# the Board may approach the NSW government to change the existing
1398# arrangements.  The starting date for summer time on the Island will
1399# however always coincide with the rest of NSW.
1400
1401# From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25):
1402# Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards
1403# clocks by 30 minutes when DST finishes. Since DST was most recently
1404# introduced in NSW, the "changeover" time on the Island has been 02:00 as
1405# shown on clocks on LHI. I guess this means that for 30 minutes at the start
1406# of DST, LHI is actually 1 hour ahead of the rest of NSW.
1407
1408# From Paul Eggert (2006-03-22):
1409# For Lord Howe dates we use Shanks & Pottenger through 1989, and
1410# Lonergan thereafter.  For times we use Lonergan.
1411
1412# From Paul Eggert (2007-07-23):
1413# See "southeast Australia" above for 2008 and later.
1414
1415# From Steffen Thorsen (2009-04-28):
1416# According to the official press release, South Australia's extended daylight
1417# saving period will continue with the same rules as used during the 2008-2009
1418# summer (southern hemisphere).
1419#
1420# From
1421# <a href="http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf">
1422# http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf
1423# </a>
1424# The extended daylight saving period that South Australia has been trialling
1425# for over the last year is now set to be ongoing.
1426# Daylight saving will continue to start on the first Sunday in October each
1427# year and finish on the first Sunday in April the following year.
1428# Industrial Relations Minister, Paul Caica, says this provides South Australia
1429# with a consistent half hour time difference with NSW, Victoria, Tasmania and
1430# the ACT for all 52 weeks of the year...
1431#
1432# We have a wrap-up here:
1433# <a href="http://www.timeanddate.com/news/time/south-australia-extends-dst.html">
1434# http://www.timeanddate.com/news/time/south-australia-extends-dst.html
1435# </a>
1436###############################################################################
1437
1438# New Zealand
1439
1440# From Mark Davies (1990-10-03):
1441# the 1989/90 year was a trial of an extended "daylight saving" period.
1442# This trial was deemed successful and the extended period adopted for
1443# subsequent years (with the addition of a further week at the start).
1444# source -- phone call to Ministry of Internal Affairs Head Office.
1445
1446# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1447# # The Country of New Zealand   (Australia's east island -) Gee they hate that!
1448# #				   or is Australia the west island of N.Z.
1449# #	[ courtesy of Geoff Tribble.. Auckland N.Z. ]
1450# #				[ Nov 1990 ]
1451# ...
1452# Rule	NZ      1974    1988	-	Oct	lastSun	2:00	1:00	D
1453# Rule	NZ	1989	max	-	Oct	Sun>=1	2:00	1:00	D
1454# Rule	NZ      1975    1989	-	Mar	Sun>=1	3:00	0	S
1455# Rule	NZ	1990	max	-	Mar	lastSun	3:00	0	S
1456# ...
1457# Zone	NZ			12:00	NZ		NZ%sT	# New Zealand
1458# Zone	NZ-CHAT			12:45	-		NZ-CHAT # Chatham Island
1459
1460# From Arthur David Olson (1992-03-08):
1461# The chosen rules use the Davies October 8 values for the start of DST in 1989
1462# rather than the October 1 value.
1463
1464# From Paul Eggert (1995-12-19);
1465# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1466# Robert Uzgalis writes that the New Zealand Daylight
1467# Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
1468# time on both the first Sunday in October and the third Sunday in March.
1469# As with Australia, we'll assume the tradition is 2:00s, not 2:00.
1470#
1471# From Paul Eggert (2006-03-22):
1472# The Department of Internal Affairs (DIA) maintains a brief history,
1473# as does Carol Squires; see tz-link.htm for the full references.
1474# Use these sources in preference to Shanks & Pottenger.
1475#
1476# For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
1477# transitions at 2:45 local standard time; this confirms that Chatham
1478# is always exactly 45 minutes ahead of Auckland.
1479
1480# From Colin Sharples (2007-04-30):
1481# DST will now start on the last Sunday in September, and end on the
1482# first Sunday in April.  The changes take effect this year, meaning
1483# that DST will begin on 2007-09-30 2008-04-06.
1484# http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended
1485
1486###############################################################################
1487
1488
1489# Fiji
1490
1491# Howse writes (p 153) that in 1879 the British governor of Fiji
1492# enacted an ordinance standardizing the islands on Antipodean Time
1493# instead of the American system (which was one day behind).
1494
1495# From Rives McDow (1998-10-08):
1496# Fiji will introduce DST effective 0200 local time, 1998-11-01
1497# until 0300 local time 1999-02-28.  Each year the DST period will
1498# be from the first Sunday in November until the last Sunday in February.
1499
1500# From Paul Eggert (2000-01-08):
1501# IATA SSIM (1999-09) says DST ends 0100 local time.  Go with McDow.
1502
1503# From the BBC World Service in
1504# http://news.bbc.co.uk/2/hi/asia-pacific/205226.stm (1998-10-31 16:03 UTC):
1505# The Fijiian government says the main reasons for the time change is to
1506# improve productivity and reduce road accidents.... [T]he move is also
1507# intended to boost Fiji's ability to attract tourists to witness the dawning
1508# of the new millennium.
1509
1510# http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13)
1511# reports that Fiji has discontinued DST.
1512
1513# Johnston
1514
1515# Johnston data is from usno1995.
1516
1517
1518# Kiribati
1519
1520# From Paul Eggert (1996-01-22):
1521# Today's _Wall Street Journal_ (page 1) reports that Kiribati
1522# ``declared it the same day [throughout] the country as of Jan. 1, 1995''
1523# as part of the competition to be first into the 21st century.
1524
1525
1526# Kwajalein
1527
1528# In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
1529# I wonder what happened in Kwajalein, where there was NO Friday,
1530# 1993-08-20.  Thursday night at midnight Kwajalein switched sides with
1531# respect to the International Date Line, to rejoin its fellow islands,
1532# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
1533
1534
1535# N Mariana Is, Guam
1536
1537# Howse writes (p 153) ``The Spaniards, on the other hand, reached the
1538# Philippines and the Ladrones from America,'' and implies that the Ladrones
1539# (now called the Marianas) kept American date for quite some time.
1540# For now, we assume the Ladrones switched at the same time as the Philippines;
1541# see Asia/Manila.
1542
1543# US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time,
1544# under the name "Chamorro Standard Time".  There is no official abbreviation,
1545# but Congressman Robert A. Underwood, author of the bill that became law,
1546# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
1547
1548
1549# Micronesia
1550
1551# Alan Eugene Davis writes (1996-03-16),
1552# ``I am certain, having lived there for the past decade, that "Truk"
1553# (now properly known as Chuuk) ... is in the time zone GMT+10.''
1554#
1555# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
1556# on 1978-10-01; ignore this for now.
1557
1558# From Paul Eggert (1999-10-29):
1559# The Federated States of Micronesia Visitors Board writes in
1560# <a href="http://www.fsmgov.org/info/clocks.html">
1561# The Federated States of Micronesia - Visitor Information
1562# </a> (1999-01-26)
1563# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
1564# We don't know when Kosrae switched from UTC+12; assume January 1 for now.
1565
1566
1567# Midway
1568
1569# From Charles T O'Connor, KMTH DJ (1956),
1570# quoted in the KTMH section of the Radio Heritage Collection
1571# <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31):
1572# For the past two months we've been on what is known as Daylight
1573# Saving Time.  This time has put us on air at 5am in the morning,
1574# your time down there in New Zealand.  Starting September 2, 1956
1575# we'll again go back to Standard Time.  This'll mean that we'll go to
1576# air at 6am your time.
1577#
1578# From Paul Eggert (2003-03-23):
1579# We don't know the date of that quote, but we'll guess they
1580# started DST on June 3.  Possibly DST was observed other years
1581# in Midway, but we have no record of it.
1582
1583
1584# Pitcairn
1585
1586# From Rives McDow (1999-11-08):
1587# A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998
1588# with regard to Pitcairn Standard Time.  The Proclamation is as follows.
1589#
1590#	The local time for general purposes in the Islands shall be
1591#	Co-ordinated Universal time minus 8 hours and shall be known
1592#	as Pitcairn Standard Time.
1593#
1594# ... I have also seen Pitcairn listed as UTC minus 9 hours in several
1595# references, and can only assume that this was an error in interpretation
1596# somehow in light of this proclamation.
1597
1598# From Rives McDow (1999-11-09):
1599# The Proclamation regarding Pitcairn time came into effect on 27 April 1998
1600# ... at midnight.
1601
1602# From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:
1603# Betty Christian told me yesterday that their local time is the same as
1604# Pacific Standard Time. They used to be 1/2 hour different from us here in
1605# Sacramento but it was changed a couple of years ago.
1606
1607
1608# Samoa
1609
1610# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
1611# that in 1879 the King of Samoa decided to change
1612# ``the date in his kingdom from the Antipodean to the American system,
1613# ordaining -- by a masterpiece of diplomatic flattery -- that
1614# the Fourth of July should be celebrated twice in that year.''
1615
1616
1617# Tonga
1618
1619# From Paul Eggert (1996-01-22):
1620# Today's _Wall Street Journal_ (p 1) reports that ``Tonga has been plotting
1621# to sneak ahead of [New Zealanders] by introducing daylight-saving time.''
1622# Since Kiribati has moved the Date Line it's not clear what Tonga will do.
1623
1624# Don Mundell writes in the 1997-02-20 Tonga Chronicle
1625# <a href="http://www.tongatapu.net.to/tonga/homeland/timebegins.htm">
1626# How Tonga became `The Land where Time Begins'
1627# </a>:
1628
1629# Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST
1630# 12 hours and 20 minutes ahead of GMT.  When New Zealand adjusted its
1631# standard time in 1940s, Tonga had the choice of subtracting from its
1632# local time to come on the same standard time as New Zealand or of
1633# advancing its time to maintain the differential of 13 degrees
1634# (approximately 50 minutes ahead of New Zealand time).
1635#
1636# Because His Majesty King Taufa'ahau Tupou IV, then Crown Prince
1637# Tungi, preferred to ensure Tonga's title as the land where time
1638# begins, the Legislative Assembly approved the latter change.
1639#
1640# But some of the older, more conservative members from the outer
1641# islands objected. "If at midnight on Dec. 31, we move ahead 40
1642# minutes, as your Royal Highness wishes, what becomes of the 40
1643# minutes we have lost?"
1644#
1645# The Crown Prince, presented an unanswerable argument: "Remember that
1646# on the World Day of Prayer, you would be the first people on Earth
1647# to say your prayers in the morning."
1648
1649# From Paul Eggert (2006-03-22):
1650# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
1651
1652# From Eric Ulevik (1999-05-03):
1653# Tonga's director of tourism, who is also secretary of the National Millennium
1654# Committee, has a plan to get Tonga back in front.
1655# He has proposed a one-off move to tropical daylight saving for Tonga from
1656# October to March, which has won approval in principle from the Tongan
1657# Government.
1658
1659# From Steffen Thorsen (1999-09-09):
1660# * Tonga will introduce DST in November
1661#
1662# I was given this link by John Letts:
1663# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
1664# http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
1665# </a>
1666#
1667# I have not been able to find exact dates for the transition in November
1668# yet. By reading this article it seems like Fiji will be 14 hours ahead
1669# of UTC as well, but as far as I know Fiji will only be 13 hours ahead
1670# (12 + 1 hour DST).
1671
1672# From Arthur David Olson (1999-09-20):
1673# According to <a href="http://www.tongaonline.com/news/sept1799.html">
1674# http://www.tongaonline.com/news/sept1799.html
1675# </a>:
1676# "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
1677# and annually thereafter from the first Saturday in October through the
1678# third Saturday of April.  Under the system approved by Privy Council on
1679# Sept. 10, clocks must be turned ahead one hour on the opening day and
1680# set back an hour on the closing date."
1681# Alas, no indication of the time of day.
1682
1683# From Rives McDow (1999-10-06):
1684# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
1685# Daylight Saving ends on April 16 at 0300am which is Sunday morning.
1686
1687# From Steffen Thorsen (2000-10-31):
1688# Back in March I found a notice on the website http://www.tongaonline.com
1689# that Tonga changed back to standard time one month early, on March 19
1690# instead of the original reported date April 16. Unfortunately, the article
1691# is no longer available on the site, and I did not make a copy of the
1692# text, and I have forgotten to report it here.
1693# (Original URL was: http://www.tongaonline.com/news/march162000.htm )
1694
1695# From Rives McDow (2000-12-01):
1696# Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
1697
1698# From Sione Moala-Mafi (2001-09-20) via Rives McDow:
1699# At 2:00am on the first Sunday of November, the standard time in the Kingdom
1700# shall be moved forward by one hour to 3:00am.  At 2:00am on the last Sunday
1701# of January the standard time in the Kingdom shall be moved backward by one
1702# hour to 1:00am.
1703
1704# From Pulu 'Anau (2002-11-05):
1705# The law was for 3 years, supposedly to get renewed.  It wasn't.
1706
1707
1708# Wake
1709
1710# From Vernice Anderson, Personal Secretary to Philip Jessup,
1711# US Ambassador At Large (oral history interview, 1971-02-02):
1712#
1713# Saturday, the 14th [of October, 1950] -- ...  The time was all the
1714# more confusing at that point, because we had crossed the
1715# International Date Line, thus getting two Sundays.  Furthermore, we
1716# discovered that Wake Island had two hours of daylight saving time
1717# making calculation of time in Washington difficult if not almost
1718# impossible.
1719#
1720# http://www.trumanlibrary.org/wake/meeting.htm
1721
1722# From Paul Eggert (2003-03-23):
1723# We have no other report of DST in Wake Island, so omit this info for now.
1724
1725###############################################################################
1726
1727# The International Date Line
1728
1729# From Gwillim Law (2000-01-03):
1730#
1731# The International Date Line is not defined by any international standard,
1732# convention, or treaty.  Mapmakers are free to draw it as they please.
1733# Reputable mapmakers will simply ensure that every point of land appears on
1734# the correct side of the IDL, according to the date legally observed there.
1735#
1736# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
1737# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
1738# to the east side of the Phoenix and Line Islands), I suppose that most
1739# mapmakers redrew the IDL following the boundary of Kiribati.  Even that line
1740# has a rather arbitrary nature.  The straight-line boundaries between Pacific
1741# island nations that are shown on many maps are based on an international
1742# convention, but are not legally binding national borders.... The date is
1743# governed by the IDL; therefore, even on the high seas, there may be some
1744# places as late as fourteen hours later than UTC.  And, since the IDL is not
1745# an international standard, there are some places on the high seas where the
1746# correct date is ambiguous.
1747
1748# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
1749# Before 1920, all ships kept local apparent time on the high seas by setting
1750# their clocks at night or at the morning sight so that, given the ship's
1751# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
1752# meridian (12 o'clock = local apparent noon).  During 1917, at the
1753# Anglo-French Conference on Time-keeping at Sea, it was recommended that all
1754# ships, both military and civilian, should adopt hourly standard time zones
1755# on the high seas.  Whenever a ship was within the territorial waters of any
1756# nation it would use that nation's standard time.  The captain was permitted
1757# to change his ship's clocks at a time of his choice following his ship's
1758# entry into another zone time--he often chose midnight.  These zones were
1759# adopted by all major fleets between 1920 and 1925 but not by many
1760# independent merchant ships until World War II.
1761
1762# From Paul Eggert, using references suggested by Oscar van Vlijmen
1763# (2005-03-20):
1764#
1765# The American Practical Navigator (2002)
1766# <http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187>
1767# talks only about the 180-degree meridian with respect to ships in
1768# international waters; it ignores the international date line.
1769