australasia revision 249692
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.
233Zone Antarctica/Macquarie 0	-	zzz	1899 Nov
234			10:00	-	EST	1916 Oct 1 2:00
235			10:00	1:00	EST	1917 Feb
236			10:00	Aus	EST	1919 Apr
237			0	-	zzz	1948 Mar 25
238			10:00	Aus	EST	1967
239			10:00	AT	EST	2010 Apr 4 3:00
240			11:00	-	MIST	# Macquarie I Standard Time
241
242# Christmas
243# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
244Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
245			7:00	-	CXT	# Christmas Island Time
246
247# Cook Is
248# From Shanks & Pottenger:
249# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
250Rule	Cook	1978	only	-	Nov	12	0:00	0:30	HS
251Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
252Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	HS
253# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
254Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901		# Avarua
255			-10:30	-	CKT	1978 Nov 12	# Cook Is Time
256			-10:00	Cook	CK%sT
257
258# Cocos
259# These islands were ruled by the Ross family from about 1830 to 1978.
260# We don't know when standard time was introduced; for now, we guess 1900.
261# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
262Zone	Indian/Cocos	6:27:40	-	LMT	1900
263			6:30	-	CCT	# Cocos Islands Time
264
265# Fiji
266
267# Milne gives 11:55:44 for Suva.
268
269# From Alexander Krivenyshev (2009-11-10):
270# According to Fiji Broadcasting Corporation,  Fiji plans to re-introduce DST
271# from November 29th 2009  to April 25th 2010.
272#
273# "Daylight savings to commence this month"
274# <a href="http://www.radiofiji.com.fj/fullstory.php?id=23719">
275# http://www.radiofiji.com.fj/fullstory.php?id=23719
276# </a>
277# or
278# <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji01.html">
279# http://www.worldtimezone.com/dst_news/dst_news_fiji01.html
280# </a>
281
282# From Steffen Thorsen (2009-11-10):
283# The Fiji Government has posted some more details about the approved
284# amendments:
285# <a href="http://www.fiji.gov.fj/publish/page_16198.shtml">
286# http://www.fiji.gov.fj/publish/page_16198.shtml
287# </a>
288
289# From Steffen Thorsen (2010-03-03):
290# The Cabinet in Fiji has decided to end DST about a month early, on
291# 2010-03-28 at 03:00.
292# The plan is to observe DST again, from 2010-10-24 to sometime in March
293# 2011 (last Sunday a good guess?).
294#
295# Official source:
296# <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">
297# 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
298# </a>
299#
300# A bit more background info here:
301# <a href="http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html">
302# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
303# </a>
304
305# From Alexander Krivenyshev (2010-10-24):
306# According to Radio Fiji and Fiji Times online, Fiji will end DST 3
307# weeks earlier than expected - on March 6, 2011, not March 27, 2011...
308# Here is confirmation from Government of the Republic of the Fiji Islands,
309# Ministry of Information (fiji.gov.fj) web site:
310# <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155">
311# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155
312# </a>
313# or
314# <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji04.html">
315# http://www.worldtimezone.com/dst_news/dst_news_fiji04.html
316# </a>
317
318# From Steffen Thorsen (2011-10-03):
319# Now the dates have been confirmed, and at least our start date
320# assumption was correct (end date was one week wrong).
321#
322# <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">
323# www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-saving-starts-in-fiji&catid=71:press-releases&Itemid=155
324# </a>
325# which says
326# Members of the public are reminded to change their time to one hour in
327# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to
328# 2am on February 26 next year.
329
330# From Ken Rylander (2011-10-24)
331# Another change to the Fiji DST end date. In the TZ database the end date for
332# Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22.
333#
334# <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">
335# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=5017:amendments-to-daylight-savings&catid=71:press-releases&Itemid=155
336# </a>
337# states:
338#
339# The end of daylight saving scheduled initially for the 26th of February 2012
340# has been brought forward to the 22nd of January 2012.
341# The commencement of daylight saving will remain unchanged and start
342# on the  23rd of October, 2011.
343
344# From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen:
345# The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate
346# today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st
347# October 2012 and end at 3 am on Sunday 20th January 2013.
348# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155
349#
350# From Paul Eggert (2012-08-31):
351# For now, guess a pattern of the penultimate Sundays in October and January.
352
353# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
354Rule	Fiji	1998	1999	-	Nov	Sun>=1	2:00	1:00	S
355Rule	Fiji	1999	2000	-	Feb	lastSun	3:00	0	-
356Rule	Fiji	2009	only	-	Nov	29	2:00	1:00	S
357Rule	Fiji	2010	only	-	Mar	lastSun	3:00	0	-
358Rule	Fiji	2010	max	-	Oct	Sun>=18	2:00	1:00	S
359Rule	Fiji	2011	only	-	Mar	Sun>=1	3:00	0	-
360Rule	Fiji	2012	max	-	Jan	Sun>=18	3:00	0	-
361# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
362Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26	# Suva
363			12:00	Fiji	FJ%sT	# Fiji Time
364
365# French Polynesia
366# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
367Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct	# Rikitea
368			 -9:00	-	GAMT	# Gambier Time
369Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
370			 -9:30	-	MART	# Marquesas Time
371Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct	# Papeete
372			-10:00	-	TAHT	# Tahiti Time
373# Clipperton (near North America) is administered from French Polynesia;
374# it is uninhabited.
375
376# Guam
377# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
378Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
379			 9:39:00 -	LMT	1901		# Agana
380			10:00	-	GST	2000 Dec 23	# Guam
381			10:00	-	ChST	# Chamorro Standard Time
382
383# Kiribati
384# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
385Zone Pacific/Tarawa	 11:32:04 -	LMT	1901		# Bairiki
386			 12:00	-	GILT		 # Gilbert Is Time
387Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
388			-12:00	-	PHOT	1979 Oct # Phoenix Is Time
389			-11:00	-	PHOT	1995
390			 13:00	-	PHOT
391Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
392			-10:40	-	LINT	1979 Oct # Line Is Time
393			-10:00	-	LINT	1995
394			 14:00	-	LINT
395
396# N Mariana Is
397# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
398Zone Pacific/Saipan	-14:17:00 -	LMT	1844 Dec 31
399			 9:43:00 -	LMT	1901
400			 9:00	-	MPT	1969 Oct # N Mariana Is Time
401			10:00	-	MPT	2000 Dec 23
402			10:00	-	ChST	# Chamorro Standard Time
403
404# Marshall Is
405# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
406Zone Pacific/Majuro	11:24:48 -	LMT	1901
407			11:00	-	MHT	1969 Oct # Marshall Islands Time
408			12:00	-	MHT
409Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
410			11:00	-	MHT	1969 Oct
411			-12:00	-	KWAT	1993 Aug 20	# Kwajalein Time
412			12:00	-	MHT
413
414# Micronesia
415# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
416Zone Pacific/Chuuk	10:07:08 -	LMT	1901
417			10:00	-	CHUT			# Chuuk Time
418Zone Pacific/Pohnpei	10:32:52 -	LMT	1901		# Kolonia
419			11:00	-	PONT			# Pohnpei Time
420Zone Pacific/Kosrae	10:51:56 -	LMT	1901
421			11:00	-	KOST	1969 Oct	# Kosrae Time
422			12:00	-	KOST	1999
423			11:00	-	KOST
424
425# Nauru
426# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
427Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15	# Uaobe
428			11:30	-	NRT	1942 Mar 15	# Nauru Time
429			9:00	-	JST	1944 Aug 15
430			11:30	-	NRT	1979 May
431			12:00	-	NRT
432
433# New Caledonia
434# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
435Rule	NC	1977	1978	-	Dec	Sun>=1	0:00	1:00	S
436Rule	NC	1978	1979	-	Feb	27	0:00	0	-
437Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
438# Shanks & Pottenger say the following was at 2:00; go with IATA.
439Rule	NC	1997	only	-	Mar	 2	2:00s	0	-
440# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
441Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13
442			11:00	NC	NC%sT
443
444
445###############################################################################
446
447# New Zealand
448
449# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
450Rule	NZ	1927	only	-	Nov	 6	2:00	1:00	S
451Rule	NZ	1928	only	-	Mar	 4	2:00	0	M
452Rule	NZ	1928	1933	-	Oct	Sun>=8	2:00	0:30	S
453Rule	NZ	1929	1933	-	Mar	Sun>=15	2:00	0	M
454Rule	NZ	1934	1940	-	Apr	lastSun	2:00	0	M
455Rule	NZ	1934	1940	-	Sep	lastSun	2:00	0:30	S
456Rule	NZ	1946	only	-	Jan	 1	0:00	0	S
457# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
458# convenient notation for this so we must duplicate the Rule lines.
459Rule	NZ	1974	only	-	Nov	Sun>=1	2:00s	1:00	D
460Rule	Chatham	1974	only	-	Nov	Sun>=1	2:45s	1:00	D
461Rule	NZ	1975	only	-	Feb	lastSun	2:00s	0	S
462Rule	Chatham	1975	only	-	Feb	lastSun	2:45s	0	S
463Rule	NZ	1975	1988	-	Oct	lastSun	2:00s	1:00	D
464Rule	Chatham	1975	1988	-	Oct	lastSun	2:45s	1:00	D
465Rule	NZ	1976	1989	-	Mar	Sun>=1	2:00s	0	S
466Rule	Chatham	1976	1989	-	Mar	Sun>=1	2:45s	0	S
467Rule	NZ	1989	only	-	Oct	Sun>=8	2:00s	1:00	D
468Rule	Chatham	1989	only	-	Oct	Sun>=8	2:45s	1:00	D
469Rule	NZ	1990	2006	-	Oct	Sun>=1	2:00s	1:00	D
470Rule	Chatham	1990	2006	-	Oct	Sun>=1	2:45s	1:00	D
471Rule	NZ	1990	2007	-	Mar	Sun>=15	2:00s	0	S
472Rule	Chatham	1990	2007	-	Mar	Sun>=15	2:45s	0	S
473Rule	NZ	2007	max	-	Sep	lastSun	2:00s	1:00	D
474Rule	Chatham	2007	max	-	Sep	lastSun	2:45s	1:00	D
475Rule	NZ	2008	max	-	Apr	Sun>=1	2:00s	0	S
476Rule	Chatham	2008	max	-	Apr	Sun>=1	2:45s	0	S
477# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
478Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
479			11:30	NZ	NZ%sT	1946 Jan  1
480			12:00	NZ	NZ%sT
481Zone Pacific/Chatham	12:13:48 -	LMT	1957 Jan  1
482			12:45	Chatham	CHA%sT
483
484
485# Auckland Is
486# uninhabited; Maori and Moriori, colonial settlers, pastoralists, sealers,
487# and scientific personnel have wintered
488
489# Campbell I
490# minor whaling stations operated 1909/1914
491# scientific station operated 1941/1995;
492# previously whalers, sealers, pastoralists, and scientific personnel wintered
493# was probably like Pacific/Auckland
494
495###############################################################################
496
497
498# Niue
499# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
500Zone	Pacific/Niue	-11:19:40 -	LMT	1901		# Alofi
501			-11:20	-	NUT	1951	# Niue Time
502			-11:30	-	NUT	1978 Oct 1
503			-11:00	-	NUT
504
505# Norfolk
506# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
507Zone	Pacific/Norfolk	11:11:52 -	LMT	1901		# Kingston
508			11:12	-	NMT	1951	# Norfolk Mean Time
509			11:30	-	NFT		# Norfolk Time
510
511# Palau (Belau)
512# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
513Zone Pacific/Palau	8:57:56 -	LMT	1901		# Koror
514			9:00	-	PWT	# Palau Time
515
516# Papua New Guinea
517# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
518Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
519			9:48:32	-	PMMT	1895	# Port Moresby Mean Time
520			10:00	-	PGT		# Papua New Guinea Time
521
522# Pitcairn
523# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
524Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901		# Adamstown
525			-8:30	-	PNT	1998 Apr 27 00:00
526			-8:00	-	PST	# Pitcairn Standard Time
527
528# American Samoa
529Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
530			-11:22:48 -	LMT	1911
531			-11:30	-	SAMT	1950		# Samoa Time
532			-11:00	-	NST	1967 Apr	# N=Nome
533			-11:00	-	BST	1983 Nov 30	# B=Bering
534			-11:00	-	SST			# S=Samoa
535
536# Samoa
537
538# From Steffen Thorsen (2009-10-16):
539# We have been in contact with the government of Samoa again, and received
540# the following info:
541#
542# "Cabinet has now approved Daylight Saving to be effected next year
543# commencing from the last Sunday of September 2010 and conclude first
544# Sunday of April 2011."
545#
546# Background info:
547# <a href="http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html">
548# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
549# </a>
550#
551# Samoa's Daylight Saving Time Act 2009 is available here, but does not
552# contain any dates:
553# <a href="http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf">
554# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
555# </a>
556
557# From Laupue Raymond Hughes (2010-10-07):
558# Please see
559# <a href="http://www.mcil.gov.ws">
560# http://www.mcil.gov.ws
561# </a>,
562# the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday
563# September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight
564# to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks
565# backwards from 1:00am to 12:00am"
566
567# From Laupue Raymond Hughes (2011-03-07):
568# I believe this will be posted shortly on the website
569# <a href="http://www.mcil.gov.ws">
570# www.mcil.gov.ws
571# </a>
572#
573# PUBLIC NOTICE ON DAYLIGHT SAVING TIME
574#
575# Pursuant to the Daylight Saving Act 2009 and Cabinets decision,
576# businesses and the general public are hereby advised that daylight
577# saving time is on the first Saturday of April 2011 (02/04/11).
578#
579# The public is therefore advised that when the standard time strikes
580# the hour of four oclock (4.00am or 0400 Hours) on the 2nd April 2011,
581# then all instruments used to measure standard time are to be
582# adjusted/changed to three oclock (3:00am or 0300Hrs).
583#
584# Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE,
585# INDUSTRY AND LABOUR 28th February 2011
586
587# From David Zuelke (2011-05-09):
588# Subject: Samoa to move timezone from east to west of international date line
589#
590# <a href="http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963">
591# http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963
592# </a>
593
594# From Mark Sim-Smith (2011-08-17):
595# I have been in contact with Leilani Tuala Warren from the Samoa Law
596# Reform Commission, and she has sent me a copy of the Bill that she
597# confirmed has been passed...Most of the sections are about maps rather
598# than the time zone change, but I'll paste the relevant bits below. But
599# the essence is that at midnight 29 Dec (UTC-11 I suppose), Samoa
600# changes from UTC-11 to UTC+13:
601#
602# International Date Line Bill 2011
603#
604# AN ACT to provide for the change to standard time in Samoa and to make
605# consequential amendments to the position of the International Date
606# Line, and for related purposes.
607#
608# BE IT ENACTED by the Legislative Assembly of Samoa in Parliament
609# assembled as follows:
610#
611# 1. Short title and commencement-(1) This Act may be cited as the
612# International Date Line Act 2011. (2) Except for section 5(3) this Act
613# commences at 12 o'clock midnight, on Thursday 29th December 2011. (3)
614# Section 5(3) commences on the date of assent by the Head of State.
615#
616# [snip]
617#
618# 3. Interpretation - [snip] "Samoa standard time" in this Act and any
619# other statute of Samoa which refers to 'Samoa standard time' means the
620# time 13 hours in advance of Co-ordinated Universal Time.
621#
622# 4. Samoa standard time - (1) Upon the commencement of this Act, Samoa
623# standard time shall be set at 13 hours in advance of Co-ordinated
624# Universal Time for the whole of Samoa. (2) All references to Samoa's
625# time zone and to Samoa standard time in Samoa in all legislation and
626# instruments after the commencement of this Act shall be references to
627# Samoa standard time as provided for in this Act. (3) Nothing in this
628# Act affects the provisions of the Daylight Saving Act 2009, except that
629# it defines Samoa standard time....
630
631# From Laupue Raymond Hughes (2011-09-02):
632# <a href="http://www.mcil.gov.ws/mcil_publications.html">
633# http://www.mcil.gov.ws/mcil_publications.html
634# </a>
635#
636# here is the official website publication for Samoa DST and dateline change
637#
638# DST
639# Year	End	Time	Start	Time
640# 2011	- - -	- - -	24 September	3:00am to 4:00am
641# 2012	01 April	4:00am to 3:00am	- - -	- - -
642#
643# Dateline Change skip Friday 30th Dec 2011
644# Thursday 29th December 2011	23:59:59 Hours
645# Saturday 31st December 2011	00:00:00 Hours
646#
647# Clarification by Tim Parenti (2012-01-03):
648# Although Samoa has used Daylight Saving Time in the 2010-2011 and 2011-2012
649# seasons, there is not yet any indication that this trend will continue on
650# a regular basis. For now, we have explicitly listed the transitions below.
651#
652# From Nicky (2012-09-10):
653# Daylight Saving Time commences on Sunday 30th September 2012 and
654# ends on Sunday 7th of April 2013.
655#
656# Please find link below for more information.
657# http://www.mcil.gov.ws/mcil_publications.html
658#
659# That publication also includes dates for Summer of 2013/4 as well
660# which give the impression of a pattern in selecting dates for the
661# future, so for now, we will guess this will continue.
662
663# Western Samoa
664# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
665Rule	WS	2012	max	-	Sep	lastSun	3:00	1	D
666Rule	WS	2012	max	-	Apr	Sun>=1	4:00	0	-
667# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
668Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
669			-11:26:56 -	LMT	1911
670			-11:30	-	SAMT	1950		# Samoa Time
671			-11:00	-	WST	2010 Sep 26
672			-11:00	1:00	WSDT	2011 Apr 2 4:00
673			-11:00	-	WST	2011 Sep 24 3:00
674			-11:00	1:00	WSDT	2011 Dec 30
675			 13:00	1:00	WSDT	2012 Apr Sun>=1 4:00
676			 13:00	WS	WS%sT
677
678# Solomon Is
679# excludes Bougainville, for which see Papua New Guinea
680# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
681Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct	# Honiara
682			11:00	-	SBT	# Solomon Is Time
683
684# Tokelau Is
685#
686# From Gwillim Law (2011-12-29)
687# A correspondent informed me that Tokelau, like Samoa, will be skipping
688# December 31 this year ...
689#
690# From Steffen Thorsen (2012-07-25)
691# ... we double checked by calling hotels and offices based in Tokelau asking
692# about the time there, and they all told a time that agrees with UTC+13....
693# Shanks says UTC-10 from 1901 [but] ... there is a good chance the change
694# actually was to UTC-11 back then.
695#
696# From Paul Eggert (2012-07-25)
697# A Google Books snippet of Appendix to the Journals of the House of
698# Representatives of New Zealand, Session 1948,
699# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
700# was "11 hours slow on G.M.T."  Go with Thorsen and assume Shanks & Pottenger
701# are off by an hour starting in 1901.
702
703# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
704Zone	Pacific/Fakaofo	-11:24:56 -	LMT	1901
705			-11:00	-	TKT 2011 Dec 30	# Tokelau Time
706			13:00	-	TKT
707
708# Tonga
709# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
710Rule	Tonga	1999	only	-	Oct	 7	2:00s	1:00	S
711Rule	Tonga	2000	only	-	Mar	19	2:00s	0	-
712Rule	Tonga	2000	2001	-	Nov	Sun>=1	2:00	1:00	S
713Rule	Tonga	2001	2002	-	Jan	lastSun	2:00	0	-
714# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
715Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
716			12:20	-	TOT	1941 # Tonga Time
717			13:00	-	TOT	1999
718			13:00	Tonga	TO%sT
719
720# Tuvalu
721# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
722Zone Pacific/Funafuti	11:56:52 -	LMT	1901
723			12:00	-	TVT	# Tuvalu Time
724
725
726# US minor outlying islands
727
728# Howland, Baker
729# Howland was mined for guano by American companies 1857-1878 and British
730# 1886-1891; Baker was similar but exact dates are not known.
731# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
732# uninhabited thereafter.
733# Howland observed Hawaii Standard Time (UTC-10:30) in 1937;
734# see page 206 of Elgen M. Long and Marie K. Long,
735# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
736# So most likely Howland and Baker observed Hawaii Time from 1935
737# until they were abandoned after the war.
738
739# Jarvis
740# Mined for guano by American companies 1857-1879 and British 1883?-1891?.
741# Inhabited by civilians 1935-1942; IGY scientific base 1957-1958;
742# uninhabited thereafter.
743# no information; was probably like Pacific/Kiritimati
744
745# Johnston
746# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
747Zone Pacific/Johnston	-10:00	-	HST
748
749# Kingman
750# uninhabited
751
752# Midway
753#
754# From Mark Brader (2005-01-23):
755# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
756# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
757# reproduced a Pan American Airways timeables from 1936, for their weekly
758# "Orient Express" flights between San Francisco and Manila, and connecting
759# flights to Chicago and the US East Coast.  As it uses some time zone
760# designations that I've never seen before:....
761# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I.   H.L.T. Ar. 5:30P Sun.
762#  "   3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A  "
763#
764Zone Pacific/Midway	-11:49:28 -	LMT	1901
765			-11:00	-	NST	1956 Jun  3
766			-11:00	1:00	NDT	1956 Sep  2
767			-11:00	-	NST	1967 Apr	# N=Nome
768			-11:00	-	BST	1983 Nov 30	# B=Bering
769			-11:00	-	SST			# S=Samoa
770
771# Palmyra
772# uninhabited since World War II; was probably like Pacific/Kiritimati
773
774# Wake
775# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
776Zone	Pacific/Wake	11:06:28 -	LMT	1901
777			12:00	-	WAKT	# Wake Time
778
779
780# Vanuatu
781# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
782Rule	Vanuatu	1983	only	-	Sep	25	0:00	1:00	S
783Rule	Vanuatu	1984	1991	-	Mar	Sun>=23	0:00	0	-
784Rule	Vanuatu	1984	only	-	Oct	23	0:00	1:00	S
785Rule	Vanuatu	1985	1991	-	Sep	Sun>=23	0:00	1:00	S
786Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
787Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
788# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
789Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13		# Vila
790			11:00	Vanuatu	VU%sT	# Vanuatu Time
791
792# Wallis and Futuna
793# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
794Zone	Pacific/Wallis	12:15:20 -	LMT	1901
795			12:00	-	WFT	# Wallis & Futuna Time
796
797###############################################################################
798
799# NOTES
800
801# This data is by no means authoritative; if you think you know better,
802# go ahead and edit the file (and please send any changes to
803# tz@iana.org for general use in the future).
804
805# From Paul Eggert (2013-02-21):
806# A good source for time zone historical data outside the U.S. is
807# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
808# San Diego: ACS Publications, Inc. (2003).
809#
810# Gwillim Law writes that a good source
811# for recent time zone data is the International Air Transport
812# Association's Standard Schedules Information Manual (IATA SSIM),
813# published semiannually.  Law sent in several helpful summaries
814# of the IATA's data after 1990.
815#
816# Except where otherwise noted, Shanks & Pottenger is the source for
817# entries through 1990, and IATA SSIM is the source for entries afterwards.
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# I invented the abbreviations marked `*' in the following table;
831# the rest are from earlier versions of this file, or from other sources.
832# Corrections are welcome!
833#		std dst
834#		LMT	Local Mean Time
835#	  8:00	WST WST	Western Australia
836#	  8:45	CWST CWST Central Western Australia*
837#	  9:00	JST	Japan
838#	  9:30	CST CST	Central Australia
839#	 10:00	EST EST	Eastern Australia
840#	 10:00	ChST	Chamorro
841#	 10:30	LHST LHST Lord Howe*
842#	 11:30	NZMT NZST New Zealand through 1945
843#	 12:00	NZST NZDT New Zealand 1946-present
844#	 12:45	CHAST CHADT Chatham*
845#	-11:00	SST	Samoa
846#	-10:00	HST	Hawaii
847#	- 8:00	PST	Pitcairn*
848#
849# See the `northamerica' file for Hawaii.
850# See the `southamerica' file for Easter I and the Galapagos Is.
851
852###############################################################################
853
854# Australia
855
856# From Paul Eggert (2005-12-08):
857# <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">
858# Implementation Dates of Daylight Saving Time within Australia
859# </a> summarizes daylight saving issues in Australia.
860
861# From Arthur David Olson (2005-12-12):
862# <a href="http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving">
863# Lawlink NSW:Daylight Saving in New South Wales
864# </a> covers New South Wales in particular.
865
866# From John Mackin (1991-03-06):
867# We in Australia have _never_ referred to DST as `daylight' time.
868# It is called `summer' time.  Now by a happy coincidence, `summer'
869# and `standard' happen to start with the same letter; hence, the
870# abbreviation does _not_ change...
871# The legislation does not actually define abbreviations, at least
872# in this State, but the abbreviation is just commonly taken to be the
873# initials of the phrase, and the legislation here uniformly uses
874# the phrase `summer time' and does not use the phrase `daylight
875# time'.
876# Announcers on the Commonwealth radio network, the ABC (for Australian
877# Broadcasting Commission), use the phrases `Eastern Standard Time'
878# or `Eastern Summer Time'.  (Note, though, that as I say in the
879# current australasia file, there is really no such thing.)  Announcers
880# on its overseas service, Radio Australia, use the same phrases
881# prefixed by the word `Australian' when referring to local times;
882# time announcements on that service, naturally enough, are made in UTC.
883
884# From Arthur David Olson (1992-03-08):
885# Given the above, what's chosen for year-round use is:
886#	CST	for any place operating at a GMTOFF of 9:30
887#	WST	for any place operating at a GMTOFF of 8:00
888#	EST	for any place operating at a GMTOFF of 10:00
889
890# From Chuck Soper (2006-06-01):
891# I recently found this Australian government web page on time zones:
892# <http://www.australia.gov.au/about-australia-13time>
893# And this government web page lists time zone names and abbreviations:
894# <http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml>
895
896# From Paul Eggert (2001-04-05), summarizing a long discussion about "EST"
897# versus "AEST" etc.:
898#
899# I see the following points of dispute:
900#
901# * How important are unique time zone abbreviations?
902#
903#   Here I tend to agree with the point (most recently made by Chris
904#   Newman) that unique abbreviations should not be essential for proper
905#   operation of software.  We have other instances of ambiguity
906#   (e.g. "IST" denoting both "Israel Standard Time" and "Indian
907#   Standard Time"), and they are not likely to go away any time soon.
908#   In the old days, some software mistakenly relied on unique
909#   abbreviations, but this is becoming less true with time, and I don't
910#   think it's that important to cater to such software these days.
911#
912#   On the other hand, there is another motivation for unambiguous
913#   abbreviations: it cuts down on human confusion.  This is
914#   particularly true for Australia, where "EST" can mean one thing for
915#   time T and a different thing for time T plus 1 second.
916#
917# * Does the relevant legislation indicate which abbreviations should be used?
918#
919#   Here I tend to think that things are a mess, just as they are in
920#   many other countries.  We Americans are currently disagreeing about
921#   which abbreviation to use for the newly legislated Chamorro Standard
922#   Time, for example.
923#
924#   Personally, I would prefer to use common practice; I would like to
925#   refer to legislation only for examples of common practice, or as a
926#   tiebreaker.
927#
928# * Do Australians more often use "Eastern Daylight Time" or "Eastern
929#   Summer Time"?  Do they typically prefix the time zone names with
930#   the word "Australian"?
931#
932#   My own impression is that both "Daylight Time" and "Summer Time" are
933#   common and are widely understood, but that "Summer Time" is more
934#   popular; and that the leading "A" is also common but is omitted more
935#   often than not.  I just used AltaVista advanced search and got the
936#   following count of page hits:
937#
938#     1,103 "Eastern Summer Time" AND domain:au
939#       971 "Australian Eastern Summer Time" AND domain:au
940#       613 "Eastern Daylight Time" AND domain:au
941#       127 "Australian Eastern Daylight Time" AND domain:au
942#
943#   Here "Summer" seems quite a bit more popular than "Daylight",
944#   particularly when we know the time zone is Australian and not US,
945#   say.  The "Australian" prefix seems to be popular for Eastern Summer
946#   Time, but unpopular for Eastern Daylight Time.
947#
948#   For abbreviations, tools like AltaVista are less useful because of
949#   ambiguity.  Many hits are not really time zones, unfortunately, and
950#   many hits denote US time zones and not Australian ones.  But here
951#   are the hit counts anyway:
952#
953#     161,304 "EST" and domain:au
954#      25,156 "EDT" and domain:au
955#      18,263 "AEST" and domain:au
956#      10,416 "AEDT" and domain:au
957#
958#      14,538 "CST" and domain:au
959#       5,728 "CDT" and domain:au
960#         176 "ACST" and domain:au
961#          29 "ACDT" and domain:au
962#
963#       7,539 "WST" and domain:au
964#          68 "AWST" and domain:au
965#
966#   This data suggest that Australians tend to omit the "A" prefix in
967#   practice.  The situation for "ST" versus "DT" is less clear, given
968#   the ambiguities involved.
969#
970# * How do Australians feel about the abbreviations in the tz database?
971#
972#   If you just count Australians on this list, I count 2 in favor and 3
973#   against.  One of the "against" votes (David Keegel) counseled delay,
974#   saying that both AEST/AEDT and EST/EST are widely used and
975#   understood in Australia.
976
977# From Paul Eggert (1995-12-19):
978# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
979# Mark Prior writes that his newspaper
980# reports that NSW's fall 1995 change will occur at 2:00,
981# but Robert Elz says it's been 3:00 in Victoria since 1970
982# and perhaps the newspaper's `2:00' is referring to standard time.
983# For now we'll continue to assume 2:00s for changes since 1960.
984
985# From Eric Ulevik (1998-01-05):
986#
987# Here are some URLs to Australian time legislation. These URLs are stable,
988# and should probably be included in the data file. There are probably more
989# relevant entries in this database.
990#
991# NSW (including LHI and Broken Hill):
992# <a href="http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html">
993# Standard Time Act 1987 (updated 1995-04-04)
994# </a>
995# ACT
996# <a href="http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html">
997# Standard Time and Summer Time Act 1972
998# </a>
999# SA
1000# <a href="http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html">
1001# Standard Time Act, 1898
1002# </a>
1003
1004# From David Grosz (2005-06-13):
1005# It was announced last week that Daylight Saving would be extended by
1006# one week next year to allow for the 2006 Commonwealth Games.
1007# Daylight Saving is now to end for next year only on the first Sunday
1008# in April instead of the last Sunday in March.
1009#
1010# From Gwillim Law (2005-06-14):
1011# I did some Googling and found that all of those states (and territory) plan
1012# to extend DST together in 2006.
1013# ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt
1014# New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html
1015# South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html
1016# Tasmania: http://www.media.tas.gov.au/release.php?id=14772
1017# Victoria: I wasn't able to find anything separate, but the other articles
1018# allude to it.
1019# But not Queensland
1020# http://www.news.com.au/story/0,10117,15564030-1248,00.html.
1021
1022# Northern Territory
1023
1024# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1025# # The NORTHERN TERRITORY..  [ Courtesy N.T. Dept of the Chief Minister ]
1026# #					[ Nov 1990 ]
1027# #	N.T. have never utilised any DST due to sub-tropical/tropical location.
1028# ...
1029# Zone        Australia/North         9:30    -       CST
1030
1031# From Bradley White (1991-03-04):
1032# A recent excerpt from an Australian newspaper...
1033# the Northern Territory do[es] not have daylight saving.
1034
1035# Western Australia
1036
1037# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1038# #  The state of WESTERN AUSTRALIA..  [ Courtesy W.A. dept Premier+Cabinet ]
1039# #						[ Nov 1990 ]
1040# #	W.A. suffers from a great deal of public and political opposition to
1041# #	DST in principle. A bill is brought before parliament in most years, but
1042# #	usually defeated either in the upper house, or in party caucus
1043# #	before reaching parliament.
1044# ...
1045# Zone	Australia/West		8:00	AW	%sST
1046# ...
1047# Rule	AW	1974	only	-	Oct	lastSun	2:00	1:00	D
1048# Rule	AW	1975	only	-	Mar	Sun>=1	3:00	0	W
1049# Rule	AW	1983	only	-	Oct	lastSun	2:00	1:00	D
1050# Rule	AW	1984	only	-	Mar	Sun>=1	3:00	0	W
1051
1052# From Bradley White (1991-03-04):
1053# A recent excerpt from an Australian newspaper...
1054# Western Australia...do[es] not have daylight saving.
1055
1056# From John D. Newman via Bradley White (1991-11-02):
1057# Western Australia is still on "winter time". Some DH in Sydney
1058# rang me at home a few days ago at 6.00am. (He had just arrived at
1059# work at 9.00am.)
1060# W.A. is switching to Summer Time on Nov 17th just to confuse
1061# everybody again.
1062
1063# From Arthur David Olson (1992-03-08):
1064# The 1992 ending date used in the rules is a best guess;
1065# it matches what was used in the past.
1066
1067# <a href="http://www.bom.gov.au/faq/faqgen.htm">
1068# The Australian Bureau of Meteorology FAQ
1069# </a> (1999-09-27) writes that Giles Meteorological Station uses
1070# South Australian time even though it's located in Western Australia.
1071
1072# Queensland
1073# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1074# #   The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ]
1075# #						[ Dec 1990 ]
1076# ...
1077# Zone	Australia/Queensland	10:00	AQ	%sST
1078# ...
1079# Rule	AQ	1971	only	-	Oct	lastSun	2:00	1:00	D
1080# Rule	AQ	1972	only	-	Feb	lastSun	3:00	0	E
1081# Rule	AQ	1989	max	-	Oct	lastSun	2:00	1:00	D
1082# Rule	AQ	1990	max	-	Mar	Sun>=1	3:00	0	E
1083
1084# From Bradley White (1989-12-24):
1085# "Australia/Queensland" now observes daylight time (i.e. from
1086# October 1989).
1087
1088# From Bradley White (1991-03-04):
1089# A recent excerpt from an Australian newspaper...
1090# ...Queensland...[has] agreed to end daylight saving
1091# at 3am tomorrow (March 3)...
1092
1093# From John Mackin (1991-03-06):
1094# I can certainly confirm for my part that Daylight Saving in NSW did in fact
1095# end on Sunday, 3 March.  I don't know at what hour, though.  (It surprised
1096# me.)
1097
1098# From Bradley White (1992-03-08):
1099# ...there was recently a referendum in Queensland which resulted
1100# in the experimental daylight saving system being abandoned. So, ...
1101# ...
1102# Rule	QLD	1989	1991	-	Oct	lastSun	2:00	1:00	D
1103# Rule	QLD	1990	1992	-	Mar	Sun>=1	3:00	0	S
1104# ...
1105
1106# From Arthur David Olson (1992-03-08):
1107# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes.
1108
1109# From Christopher Hunt (2006-11-21), after an advance warning
1110# from Jesper Norgaard Welen (2006-11-01):
1111# WA are trialing DST for three years.
1112# <http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf>
1113
1114# From Rives McDow (2002-04-09):
1115# The most interesting region I have found consists of three towns on the
1116# southern coast....  South Australia observes daylight saving time; Western
1117# Australia does not.  The two states are one and a half hours apart.  The
1118# residents decided to forget about this nonsense of changing the clock so
1119# much and set the local time 20 hours and 45 minutes from the
1120# international date line, or right in the middle of the time of South
1121# Australia and Western Australia....
1122#
1123# From Paul Eggert (2002-04-09):
1124# This is confirmed by the section entitled
1125# "What's the deal with time zones???" in
1126# <http://www.earthsci.unimelb.edu.au/~awatkins/null.html>.
1127#
1128# From Alex Livingston (2006-12-07):
1129# ... it was just on four years ago that I drove along the Eyre Highway,
1130# which passes through eastern Western Australia close to the southern
1131# coast of the continent.
1132#
1133# I paid particular attention to the time kept there. There can be no
1134# dispute that UTC+08:45 was considered "the time" from the border
1135# village just inside the border with South Australia to as far west
1136# as just east of Caiguna. There can also be no dispute that Eucla is
1137# the largest population centre in this zone....
1138#
1139# Now that Western Australia is observing daylight saving, the
1140# question arose whether this part of the state would follow suit. I
1141# just called the border village and confirmed that indeed they have,
1142# meaning that they are now observing UTC+09:45.
1143#
1144# (2006-12-09):
1145# I personally doubt that either experimentation with daylight saving
1146# in WA or its introduction in SA had anything to do with the genesis
1147# of this time zone.  My hunch is that it's been around since well
1148# before 1975.  I remember seeing it noted on road maps decades ago.
1149
1150# From Paul Eggert (2006-12-15):
1151# For lack of better info, assume the tradition dates back to the
1152# introduction of standard time in 1895.
1153
1154
1155# southeast Australia
1156#
1157# From Paul Eggert (2007-07-23):
1158# Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT
1159# end DST the first Sunday in April and start DST the first Sunday in October.
1160# http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html
1161
1162
1163# South Australia
1164
1165# From Bradley White (1991-03-04):
1166# A recent excerpt from an Australian newspaper...
1167# ...South Australia...[has] agreed to end daylight saving
1168# at 3am tomorrow (March 3)...
1169
1170# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1171# #   The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ]
1172# #						[ Nov 1990 ]
1173# ...
1174# Zone	Australia/South		9:30	AS	%sST
1175# ...
1176# Rule	 AS	1971	max	-	Oct	lastSun	2:00	1:00	D
1177# Rule	 AS	1972	1985	-	Mar	Sun>=1	3:00	0	C
1178# Rule	 AS	1986	1990	-	Mar	Sun>=15	3:00	0	C
1179# Rule	 AS	1991	max	-	Mar	Sun>=1	3:00	0	C
1180
1181# From Bradley White (1992-03-11):
1182# Recent correspondence with a friend in Adelaide
1183# contained the following exchange:  "Due to the Adelaide Festival,
1184# South Australia delays setting back our clocks for a few weeks."
1185
1186# From Robert Elz (1992-03-13):
1187# I heard that apparently (or at least, it appears that)
1188# South Aus will have an extra 3 weeks daylight saving every even
1189# numbered year (from 1990).  That's when the Adelaide Festival
1190# is on...
1191
1192# From Robert Elz (1992-03-16, 00:57:07 +1000):
1193# DST didn't end in Adelaide today (yesterday)....
1194# But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever...
1195# (it's just as likely to be "the Sunday we pick for this year"...).
1196
1197# From Bradley White (1994-04-11):
1198# If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March,
1199# 1994 was at +0930 as John Connolly's customer seems to assert, then I can
1200# only conclude that the actual rule is more complicated....
1201
1202# From John Warburton (1994-10-07):
1203# The new Daylight Savings dates for South Australia ...
1204# was gazetted in the Government Hansard on Sep 26 1994....
1205# start on last Sunday in October and end in last sunday in March.
1206
1207# From Paul Eggert (2007-07-23):
1208# See "southeast Australia" above for 2008 and later.
1209
1210# Tasmania
1211
1212# The rules for 1967 through 1991 were reported by George Shepherd
1213# via Simon Woodhead via Robert Elz (1991-03-06):
1214# #  The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
1215# #					[ Nov 1990 ]
1216
1217# From Bill Hart via Guy Harris (1991-10-10):
1218# Oh yes, the new daylight savings rules are uniquely tasmanian, we have
1219# 6 weeks a year now when we are out of sync with the rest of Australia
1220# (but nothing new about that).
1221
1222# From Alex Livingston (1999-10-04):
1223# I heard on the ABC (Australian Broadcasting Corporation) radio news on the
1224# (long) weekend that Tasmania, which usually goes its own way in this regard,
1225# has decided to join with most of NSW, the ACT, and most of Victoria
1226# (Australia) and start daylight saving on the last Sunday in August in 2000
1227# instead of the first Sunday in October.
1228
1229# Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules:
1230# http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300
1231
1232# From Paul Eggert (2007-07-23):
1233# See "southeast Australia" above for 2008 and later.
1234
1235# Victoria
1236
1237# The rules for 1971 through 1991 were reported by George Shepherd
1238# via Simon Woodhead via Robert Elz (1991-03-06):
1239# #   The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
1240# #						[ Nov 1990 ]
1241
1242# From Scott Harrington (2001-08-29):
1243# On KQED's "City Arts and Lectures" program last night I heard an
1244# interesting story about daylight savings time.  Dr. John Heilbron was
1245# discussing his book "The Sun in the Church: Cathedrals as Solar
1246# Observatories"[1], and in particular the Shrine of Remembrance[2] located
1247# in Melbourne, Australia.
1248#
1249# Apparently the shrine's main purpose is a beam of sunlight which
1250# illuminates a special spot on the floor at the 11th hour of the 11th day
1251# of the 11th month (Remembrance Day) every year in memory of Australia's
1252# fallen WWI soldiers.  And if you go there on Nov. 11, at 11am local time,
1253# you will indeed see the sunbeam illuminate the special spot at the
1254# expected time.
1255#
1256# However, that is only because of some special mirror contraption that had
1257# to be employed, since due to daylight savings time, the true solar time of
1258# the remembrance moment occurs one hour later (or earlier?).  Perhaps
1259# someone with more information on this jury-rig can tell us more.
1260#
1261# [1] http://www.hup.harvard.edu/catalog/HEISUN.html
1262# [2] http://www.shrine.org.au
1263
1264# From Paul Eggert (2007-07-23):
1265# See "southeast Australia" above for 2008 and later.
1266
1267# New South Wales
1268
1269# From Arthur David Olson:
1270# New South Wales and subjurisdictions have their own ideas of a fun time.
1271# Based on law library research by John Mackin,
1272# who notes:
1273#	In Australia, time is not legislated federally, but rather by the
1274#	individual states.  Thus, while such terms as ``Eastern Standard Time''
1275#	[I mean, of course, Australian EST, not any other kind] are in common
1276#	use, _they have NO REAL MEANING_, as they are not defined in the
1277#	legislation.  This is very important to understand.
1278#	I have researched New South Wales time only...
1279
1280# From Eric Ulevik (1999-05-26):
1281# DST will start in NSW on the last Sunday of August, rather than the usual
1282# October in 2000.  [See: Matthew Moore,
1283# <a href="http://www.smh.com.au/news/9905/26/pageone/pageone4.html">
1284# Two months more daylight saving
1285# </a>
1286# Sydney Morning Herald (1999-05-26).]
1287
1288# From Paul Eggert (1999-09-27):
1289# See the following official NSW source:
1290# <a href="http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ">
1291# Daylight Saving in New South Wales.
1292# </a>
1293#
1294# Narrabri Shire (NSW) council has announced it will ignore the extension of
1295# daylight saving next year.  See:
1296# <a href="http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm">
1297# Narrabri Council to ignore daylight saving
1298# </a> (1999-07-22).  For now, we'll wait to see if this really happens.
1299#
1300# Victoria will following NSW.  See:
1301# <a href="http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm">
1302# Vic to extend daylight saving
1303# </a> (1999-07-28).
1304#
1305# However, South Australia rejected the DST request.  See:
1306# <a href="http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm">
1307# South Australia rejects Olympics daylight savings request
1308# </a> (1999-07-19).
1309#
1310# Queensland also will not observe DST for the Olympics.  See:
1311# <a href="http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm">
1312# Qld says no to daylight savings for Olympics
1313# </a> (1999-06-01), which quotes Queensland Premier Peter Beattie as saying
1314# ``Look you've got to remember in my family when this came up last time
1315# I voted for it, my wife voted against it and she said to me it's all very
1316# well for you, you don't have to worry about getting the children out of
1317# bed, getting them to school, getting them to sleep at night.
1318# I've been through all this argument domestically...my wife rules.''
1319#
1320# Broken Hill will stick with South Australian time in 2000.  See:
1321# <a href="http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm">
1322# Broken Hill to be behind the times
1323# </a> (1999-07-21).
1324
1325# IATA SSIM (1998-09) says that the spring 2000 change for Australian
1326# Capital Territory, New South Wales except Lord Howe Island and Broken
1327# Hill, and Victoria will be August 27, presumably due to the Sydney Olympics.
1328
1329# From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29:
1330# The Queensland Premier Peter Beattie is encouraging northern NSW
1331# towns to use Queensland time.
1332
1333# From Paul Eggert (2007-07-23):
1334# See "southeast Australia" above for 2008 and later.
1335
1336# Yancowinna
1337
1338# From John Mackin (1989-01-04):
1339# `Broken Hill' means the County of Yancowinna.
1340
1341# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1342# # YANCOWINNA..  [ Confirmation courtesy of Broken Hill Postmaster ]
1343# #					[ Dec 1990 ]
1344# ...
1345# # Yancowinna uses Central Standard Time, despite [its] location on the
1346# # New South Wales side of the S.A. border. Most business and social dealings
1347# # are with CST zones, therefore CST is legislated by local government
1348# # although the switch to Summer Time occurs in line with N.S.W. There have
1349# # been years when this did not apply, but the historical data is not
1350# # presently available.
1351# Zone	Australia/Yancowinna	9:30	 AY	%sST
1352# ...
1353# Rule	 AY	1971	1985	-	Oct	lastSun	2:00	1:00	D
1354# Rule	 AY	1972	only	-	Feb	lastSun	3:00	0	C
1355# [followed by other Rules]
1356
1357# Lord Howe Island
1358
1359# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1360# LHI...		[ Courtesy of Pauline Van Winsen ]
1361#					[ Dec 1990 ]
1362# Lord Howe Island is located off the New South Wales coast, and is half an
1363# hour ahead of NSW time.
1364
1365# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
1366# Lord Howe Island summer time in 2000/2001 will commence on the same
1367# date as the rest of NSW (i.e. 2000-08-27).  For your information the
1368# Lord Howe Island Board (controlling authority for the Island) is
1369# seeking the community's views on various options for summer time
1370# arrangements on the Island, e.g. advance clocks by 1 full hour
1371# instead of only 30 minutes.  [Dependent] on the wishes of residents
1372# the Board may approach the NSW government to change the existing
1373# arrangements.  The starting date for summer time on the Island will
1374# however always coincide with the rest of NSW.
1375
1376# From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25):
1377# Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards
1378# clocks by 30 minutes when DST finishes. Since DST was most recently
1379# introduced in NSW, the "changeover" time on the Island has been 02:00 as
1380# shown on clocks on LHI. I guess this means that for 30 minutes at the start
1381# of DST, LHI is actually 1 hour ahead of the rest of NSW.
1382
1383# From Paul Eggert (2006-03-22):
1384# For Lord Howe dates we use Shanks & Pottenger through 1989, and
1385# Lonergan thereafter.  For times we use Lonergan.
1386
1387# From Paul Eggert (2007-07-23):
1388# See "southeast Australia" above for 2008 and later.
1389
1390# From Steffen Thorsen (2009-04-28):
1391# According to the official press release, South Australia's extended daylight
1392# saving period will continue with the same rules as used during the 2008-2009
1393# summer (southern hemisphere).
1394#
1395# From
1396# <a href="http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf">
1397# http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf
1398# </a>
1399# The extended daylight saving period that South Australia has been trialling
1400# for over the last year is now set to be ongoing.
1401# Daylight saving will continue to start on the first Sunday in October each
1402# year and finish on the first Sunday in April the following year.
1403# Industrial Relations Minister, Paul Caica, says this provides South Australia
1404# with a consistent half hour time difference with NSW, Victoria, Tasmania and
1405# the ACT for all 52 weeks of the year...
1406#
1407# We have a wrap-up here:
1408# <a href="http://www.timeanddate.com/news/time/south-australia-extends-dst.html">
1409# http://www.timeanddate.com/news/time/south-australia-extends-dst.html
1410# </a>
1411###############################################################################
1412
1413# New Zealand
1414
1415# From Mark Davies (1990-10-03):
1416# the 1989/90 year was a trial of an extended "daylight saving" period.
1417# This trial was deemed successful and the extended period adopted for
1418# subsequent years (with the addition of a further week at the start).
1419# source -- phone call to Ministry of Internal Affairs Head Office.
1420
1421# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1422# # The Country of New Zealand   (Australia's east island -) Gee they hate that!
1423# #				   or is Australia the west island of N.Z.
1424# #	[ courtesy of Geoff Tribble.. Auckland N.Z. ]
1425# #				[ Nov 1990 ]
1426# ...
1427# Rule	NZ      1974    1988	-	Oct	lastSun	2:00	1:00	D
1428# Rule	NZ	1989	max	-	Oct	Sun>=1	2:00	1:00	D
1429# Rule	NZ      1975    1989	-	Mar	Sun>=1	3:00	0	S
1430# Rule	NZ	1990	max	-	Mar	lastSun	3:00	0	S
1431# ...
1432# Zone	NZ			12:00	NZ		NZ%sT	# New Zealand
1433# Zone	NZ-CHAT			12:45	-		NZ-CHAT # Chatham Island
1434
1435# From Arthur David Olson (1992-03-08):
1436# The chosen rules use the Davies October 8 values for the start of DST in 1989
1437# rather than the October 1 value.
1438
1439# From Paul Eggert (1995-12-19);
1440# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1441# Robert Uzgalis writes that the New Zealand Daylight
1442# Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
1443# time on both the first Sunday in October and the third Sunday in March.
1444# As with Australia, we'll assume the tradition is 2:00s, not 2:00.
1445#
1446# From Paul Eggert (2006-03-22):
1447# The Department of Internal Affairs (DIA) maintains a brief history,
1448# as does Carol Squires; see tz-link.htm for the full references.
1449# Use these sources in preference to Shanks & Pottenger.
1450#
1451# For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
1452# transitions at 2:45 local standard time; this confirms that Chatham
1453# is always exactly 45 minutes ahead of Auckland.
1454
1455# From Colin Sharples (2007-04-30):
1456# DST will now start on the last Sunday in September, and end on the
1457# first Sunday in April.  The changes take effect this year, meaning
1458# that DST will begin on 2007-09-30 2008-04-06.
1459# http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended
1460
1461###############################################################################
1462
1463
1464# Fiji
1465
1466# Howse writes (p 153) that in 1879 the British governor of Fiji
1467# enacted an ordinance standardizing the islands on Antipodean Time
1468# instead of the American system (which was one day behind).
1469
1470# From Rives McDow (1998-10-08):
1471# Fiji will introduce DST effective 0200 local time, 1998-11-01
1472# until 0300 local time 1999-02-28.  Each year the DST period will
1473# be from the first Sunday in November until the last Sunday in February.
1474
1475# From Paul Eggert (2000-01-08):
1476# IATA SSIM (1999-09) says DST ends 0100 local time.  Go with McDow.
1477
1478# From the BBC World Service (1998-10-31 11:32 UTC):
1479# The Fijiian government says the main reasons for the time change is to
1480# improve productivity and reduce road accidents.  But correspondents say it
1481# also hopes the move will boost Fiji's ability to compete with other pacific
1482# islands in the effort to attract tourists to witness the dawning of the new
1483# millenium.
1484
1485# http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13)
1486# reports that Fiji has discontinued DST.
1487
1488# Johnston
1489
1490# Johnston data is from usno1995.
1491
1492
1493# Kiribati
1494
1495# From Paul Eggert (1996-01-22):
1496# Today's _Wall Street Journal_ (page 1) reports that Kiribati
1497# ``declared it the same day [throughout] the country as of Jan. 1, 1995''
1498# as part of the competition to be first into the 21st century.
1499
1500
1501# Kwajalein
1502
1503# In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
1504# I wonder what happened in Kwajalein, where there was NO Friday,
1505# 1993-08-20.  Thursday night at midnight Kwajalein switched sides with
1506# respect to the International Date Line, to rejoin its fellow islands,
1507# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
1508
1509
1510# N Mariana Is, Guam
1511
1512# Howse writes (p 153) ``The Spaniards, on the other hand, reached the
1513# Philippines and the Ladrones from America,'' and implies that the Ladrones
1514# (now called the Marianas) kept American date for quite some time.
1515# For now, we assume the Ladrones switched at the same time as the Philippines;
1516# see Asia/Manila.
1517
1518# US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time,
1519# under the name "Chamorro Standard Time".  There is no official abbreviation,
1520# but Congressman Robert A. Underwood, author of the bill that became law,
1521# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
1522
1523
1524# Micronesia
1525
1526# Alan Eugene Davis writes (1996-03-16),
1527# ``I am certain, having lived there for the past decade, that "Truk"
1528# (now properly known as Chuuk) ... is in the time zone GMT+10.''
1529#
1530# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
1531# on 1978-10-01; ignore this for now.
1532
1533# From Paul Eggert (1999-10-29):
1534# The Federated States of Micronesia Visitors Board writes in
1535# <a href="http://www.fsmgov.org/info/clocks.html">
1536# The Federated States of Micronesia - Visitor Information
1537# </a> (1999-01-26)
1538# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
1539# We don't know when Kosrae switched from UTC+12; assume January 1 for now.
1540
1541
1542# Midway
1543
1544# From Charles T O'Connor, KMTH DJ (1956),
1545# quoted in the KTMH section of the Radio Heritage Collection
1546# <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31):
1547# For the past two months we've been on what is known as Daylight
1548# Saving Time.  This time has put us on air at 5am in the morning,
1549# your time down there in New Zealand.  Starting September 2, 1956
1550# we'll again go back to Standard Time.  This'll mean that we'll go to
1551# air at 6am your time.
1552#
1553# From Paul Eggert (2003-03-23):
1554# We don't know the date of that quote, but we'll guess they
1555# started DST on June 3.  Possibly DST was observed other years
1556# in Midway, but we have no record of it.
1557
1558
1559# Pitcairn
1560
1561# From Rives McDow (1999-11-08):
1562# A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998
1563# with regard to Pitcairn Standard Time.  The Proclamation is as follows.
1564#
1565#	The local time for general purposes in the Islands shall be
1566#	Co-ordinated Universal time minus 8 hours and shall be known
1567#	as Pitcairn Standard Time.
1568#
1569# ... I have also seen Pitcairn listed as UTC minus 9 hours in several
1570# references, and can only assume that this was an error in interpretation
1571# somehow in light of this proclamation.
1572
1573# From Rives McDow (1999-11-09):
1574# The Proclamation regarding Pitcairn time came into effect on 27 April 1998
1575# ... at midnight.
1576
1577# From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:
1578# Betty Christian told me yesterday that their local time is the same as
1579# Pacific Standard Time. They used to be 1/2 hour different from us here in
1580# Sacramento but it was changed a couple of years ago.
1581
1582
1583# Samoa
1584
1585# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
1586# that in 1879 the King of Samoa decided to change
1587# ``the date in his kingdom from the Antipodean to the American system,
1588# ordaining -- by a masterpiece of diplomatic flattery -- that
1589# the Fourth of July should be celebrated twice in that year.''
1590
1591
1592# Tonga
1593
1594# From Paul Eggert (1996-01-22):
1595# Today's _Wall Street Journal_ (p 1) reports that ``Tonga has been plotting
1596# to sneak ahead of [New Zealanders] by introducing daylight-saving time.''
1597# Since Kiribati has moved the Date Line it's not clear what Tonga will do.
1598
1599# Don Mundell writes in the 1997-02-20 Tonga Chronicle
1600# <a href="http://www.tongatapu.net.to/tonga/homeland/timebegins.htm">
1601# How Tonga became `The Land where Time Begins'
1602# </a>:
1603
1604# Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST
1605# 12 hours and 20 minutes ahead of GMT.  When New Zealand adjusted its
1606# standard time in 1940s, Tonga had the choice of subtracting from its
1607# local time to come on the same standard time as New Zealand or of
1608# advancing its time to maintain the differential of 13 degrees
1609# (approximately 50 minutes ahead of New Zealand time).
1610#
1611# Because His Majesty King Taufa'ahau Tupou IV, then Crown Prince
1612# Tungi, preferred to ensure Tonga's title as the land where time
1613# begins, the Legislative Assembly approved the latter change.
1614#
1615# But some of the older, more conservative members from the outer
1616# islands objected. "If at midnight on Dec. 31, we move ahead 40
1617# minutes, as your Royal Highness wishes, what becomes of the 40
1618# minutes we have lost?"
1619#
1620# The Crown Prince, presented an unanswerable argument: "Remember that
1621# on the World Day of Prayer, you would be the first people on Earth
1622# to say your prayers in the morning."
1623
1624# From Paul Eggert (2006-03-22):
1625# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
1626
1627# From Eric Ulevik (1999-05-03):
1628# Tonga's director of tourism, who is also secretary of the National Millenium
1629# Committee, has a plan to get Tonga back in front.
1630# He has proposed a one-off move to tropical daylight saving for Tonga from
1631# October to March, which has won approval in principle from the Tongan
1632# Government.
1633
1634# From Steffen Thorsen (1999-09-09):
1635# * Tonga will introduce DST in November
1636#
1637# I was given this link by John Letts:
1638# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
1639# http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
1640# </a>
1641#
1642# I have not been able to find exact dates for the transition in November
1643# yet. By reading this article it seems like Fiji will be 14 hours ahead
1644# of UTC as well, but as far as I know Fiji will only be 13 hours ahead
1645# (12 + 1 hour DST).
1646
1647# From Arthur David Olson (1999-09-20):
1648# According to <a href="http://www.tongaonline.com/news/sept1799.html">
1649# http://www.tongaonline.com/news/sept1799.html
1650# </a>:
1651# "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
1652# and annually thereafter from the first Saturday in October through the
1653# third Saturday of April.  Under the system approved by Privy Council on
1654# Sept. 10, clocks must be turned ahead one hour on the opening day and
1655# set back an hour on the closing date."
1656# Alas, no indication of the time of day.
1657
1658# From Rives McDow (1999-10-06):
1659# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
1660# Daylight Saving ends on April 16 at 0300am which is Sunday morning.
1661
1662# From Steffen Thorsen (2000-10-31):
1663# Back in March I found a notice on the website http://www.tongaonline.com
1664# that Tonga changed back to standard time one month early, on March 19
1665# instead of the original reported date April 16. Unfortunately, the article
1666# is no longer available on the site, and I did not make a copy of the
1667# text, and I have forgotten to report it here.
1668# (Original URL was: http://www.tongaonline.com/news/march162000.htm )
1669
1670# From Rives McDow (2000-12-01):
1671# Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
1672
1673# From Sione Moala-Mafi (2001-09-20) via Rives McDow:
1674# At 2:00am on the first Sunday of November, the standard time in the Kingdom
1675# shall be moved forward by one hour to 3:00am.  At 2:00am on the last Sunday
1676# of January the standard time in the Kingdom shall be moved backward by one
1677# hour to 1:00am.
1678
1679# From Pulu 'Anau (2002-11-05):
1680# The law was for 3 years, supposedly to get renewed.  It wasn't.
1681
1682
1683# Wake
1684
1685# From Vernice Anderson, Personal Secretary to Philip Jessup,
1686# US Ambassador At Large (oral history interview, 1971-02-02):
1687#
1688# Saturday, the 14th [of October, 1950] -- ...  The time was all the
1689# more confusing at that point, because we had crossed the
1690# International Date Line, thus getting two Sundays.  Furthermore, we
1691# discovered that Wake Island had two hours of daylight saving time
1692# making calculation of time in Washington difficult if not almost
1693# impossible.
1694#
1695# http://www.trumanlibrary.org/wake/meeting.htm
1696
1697# From Paul Eggert (2003-03-23):
1698# We have no other report of DST in Wake Island, so omit this info for now.
1699
1700###############################################################################
1701
1702# The International Date Line
1703
1704# From Gwillim Law (2000-01-03):
1705#
1706# The International Date Line is not defined by any international standard,
1707# convention, or treaty.  Mapmakers are free to draw it as they please.
1708# Reputable mapmakers will simply ensure that every point of land appears on
1709# the correct side of the IDL, according to the date legally observed there.
1710#
1711# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
1712# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
1713# to the east side of the Phoenix and Line Islands), I suppose that most
1714# mapmakers redrew the IDL following the boundary of Kiribati.  Even that line
1715# has a rather arbitrary nature.  The straight-line boundaries between Pacific
1716# island nations that are shown on many maps are based on an international
1717# convention, but are not legally binding national borders.... The date is
1718# governed by the IDL; therefore, even on the high seas, there may be some
1719# places as late as fourteen hours later than UTC.  And, since the IDL is not
1720# an international standard, there are some places on the high seas where the
1721# correct date is ambiguous.
1722
1723# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
1724# Before 1920, all ships kept local apparent time on the high seas by setting
1725# their clocks at night or at the morning sight so that, given the ship's
1726# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
1727# meridian (12 o'clock = local apparent noon).  During 1917, at the
1728# Anglo-French Conference on Time-keeping at Sea, it was recommended that all
1729# ships, both military and civilian, should adopt hourly standard time zones
1730# on the high seas.  Whenever a ship was within the territorial waters of any
1731# nation it would use that nation's standard time.  The captain was permitted
1732# to change his ship's clocks at a time of his choice following his ship's
1733# entry into another zone time--he often chose midnight.  These zones were
1734# adopted by all major fleets between 1920 and 1925 but not by many
1735# independent merchant ships until World War II.
1736
1737# From Paul Eggert, using references suggested by Oscar van Vlijmen
1738# (2005-03-20):
1739#
1740# The American Practical Navigator (2002)
1741# <http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187>
1742# talks only about the 180-degree meridian with respect to ships in
1743# international waters; it ignores the international date line.
1744