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duke6e45e102007-12-01 00:00:00 +00001#
2# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3#
4# This code is free software; you can redistribute it and/or modify it
5# under the terms of the GNU General Public License version 2 only, as
ohair2283b9d2010-05-25 15:58:33 -07006# published by the Free Software Foundation. Oracle designates this
duke6e45e102007-12-01 00:00:00 +00007# particular file as subject to the "Classpath" exception as provided
ohair2283b9d2010-05-25 15:58:33 -07008# by Oracle in the LICENSE file that accompanied this code.
duke6e45e102007-12-01 00:00:00 +00009#
10# This code is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13# version 2 for more details (a copy is included in the LICENSE file that
14# accompanied this code).
15#
16# You should have received a copy of the GNU General Public License version
17# 2 along with this work; if not, write to the Free Software Foundation,
18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19#
ohair2283b9d2010-05-25 15:58:33 -070020# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21# or visit www.oracle.com if you need additional information or have any
22# questions.
duke6e45e102007-12-01 00:00:00 +000023#
24# <pre>
peytoiafdd22f32009-08-31 14:50:33 +090025# This file is in the public domain, so clarified as of
26# 2009-05-17 by Arthur David Olson.
duke6e45e102007-12-01 00:00:00 +000027
28# This file also includes Pacific islands.
29
30# Notes are at the end of this file
31
32###############################################################################
33
34# Australia
35
36# Please see the notes below for the controversy about "EST" versus "AEST" etc.
37
38# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
39Rule Aus 1917 only - Jan 1 0:01 1:00 -
40Rule Aus 1917 only - Mar 25 2:00 0 -
41Rule Aus 1942 only - Jan 1 2:00 1:00 -
42Rule Aus 1942 only - Mar 29 2:00 0 -
43Rule Aus 1942 only - Sep 27 2:00 1:00 -
44Rule Aus 1943 1944 - Mar lastSun 2:00 0 -
45Rule Aus 1943 only - Oct 3 2:00 1:00 -
46# Go with Whitman and the Australian National Standards Commission, which
47# says W Australia didn't use DST in 1943/1944. Ignore Whitman's claim that
48# 1944/1945 was just like 1943/1944.
49
50# Zone NAME GMTOFF RULES FORMAT [UNTIL]
51# Northern Territory
52Zone Australia/Darwin 8:43:20 - LMT 1895 Feb
53 9:00 - CST 1899 May
54 9:30 Aus CST
55# Western Australia
56#
57# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
58Rule AW 1974 only - Oct lastSun 2:00s 1:00 -
59Rule AW 1975 only - Mar Sun>=1 2:00s 0 -
60Rule AW 1983 only - Oct lastSun 2:00s 1:00 -
61Rule AW 1984 only - Mar Sun>=1 2:00s 0 -
62Rule AW 1991 only - Nov 17 2:00s 1:00 -
63Rule AW 1992 only - Mar Sun>=1 2:00s 0 -
64Rule AW 2006 only - Dec 3 2:00s 1:00 -
65Rule AW 2007 2009 - Mar lastSun 2:00s 0 -
66Rule AW 2007 2008 - Oct lastSun 2:00s 1:00 -
67Zone Australia/Perth 7:43:24 - LMT 1895 Dec
68 8:00 Aus WST 1943 Jul
69 8:00 AW WST
70Zone Australia/Eucla 8:35:28 - LMT 1895 Dec
71 8:45 Aus CWST 1943 Jul
72 8:45 AW CWST
73
74# Queensland
75#
76# From Alex Livingston (1996-11-01):
77# I have heard or read more than once that some resort islands off the coast
78# of Queensland chose to keep observing daylight-saving time even after
79# Queensland ceased to.
80#
81# From Paul Eggert (1996-11-22):
82# IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman,
83# Hamilton) observed DST for two years after the rest of Queensland stopped.
84# Hamilton is the largest, but there is also a Hamilton in Victoria,
85# so use Lindeman.
86#
87# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
88Rule AQ 1971 only - Oct lastSun 2:00s 1:00 -
89Rule AQ 1972 only - Feb lastSun 2:00s 0 -
90Rule AQ 1989 1991 - Oct lastSun 2:00s 1:00 -
91Rule AQ 1990 1992 - Mar Sun>=1 2:00s 0 -
92Rule Holiday 1992 1993 - Oct lastSun 2:00s 1:00 -
93Rule Holiday 1993 1994 - Mar Sun>=1 2:00s 0 -
94Zone Australia/Brisbane 10:12:08 - LMT 1895
95 10:00 Aus EST 1971
96 10:00 AQ EST
97Zone Australia/Lindeman 9:55:56 - LMT 1895
98 10:00 Aus EST 1971
99 10:00 AQ EST 1992 Jul
100 10:00 Holiday EST
101
102# South Australia
103# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
104Rule AS 1971 1985 - Oct lastSun 2:00s 1:00 -
105Rule AS 1986 only - Oct 19 2:00s 1:00 -
106Rule AS 1987 2007 - Oct lastSun 2:00s 1:00 -
107Rule AS 1972 only - Feb 27 2:00s 0 -
108Rule AS 1973 1985 - Mar Sun>=1 2:00s 0 -
109Rule AS 1986 1989 - Mar Sun>=15 2:00s 0 -
110Rule AS 1990 only - Mar Sun>=18 2:00s 0 -
111Rule AS 1991 only - Mar Sun>=1 2:00s 0 -
112Rule AS 1992 only - Mar Sun>=18 2:00s 0 -
113Rule AS 1993 only - Mar Sun>=1 2:00s 0 -
114Rule AS 1994 only - Mar Sun>=18 2:00s 0 -
115Rule AS 1995 2005 - Mar lastSun 2:00s 0 -
116Rule AS 2006 only - Apr Sun>=1 2:00s 0 -
117Rule AS 2007 only - Mar lastSun 2:00s 0 -
118Rule AS 2008 max - Apr Sun>=1 2:00s 0 -
119Rule AS 2008 max - Oct Sun>=1 2:00s 1:00 -
120# Zone NAME GMTOFF RULES FORMAT [UNTIL]
121Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb
122 9:00 - CST 1899 May
123 9:30 Aus CST 1971
124 9:30 AS CST
125
126# Tasmania
127#
128# From Paul Eggert (2005-08-16):
129# <http://www.bom.gov.au/climate/averages/tables/dst_times.shtml>
130# says King Island didn't observe DST from WWII until late 1971.
131#
132# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
133Rule AT 1967 only - Oct Sun>=1 2:00s 1:00 -
134Rule AT 1968 only - Mar lastSun 2:00s 0 -
135Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 -
136Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 -
137Rule AT 1972 only - Feb lastSun 2:00s 0 -
138Rule AT 1973 1981 - Mar Sun>=1 2:00s 0 -
139Rule AT 1982 1983 - Mar lastSun 2:00s 0 -
140Rule AT 1984 1986 - Mar Sun>=1 2:00s 0 -
141Rule AT 1986 only - Oct Sun>=15 2:00s 1:00 -
142Rule AT 1987 1990 - Mar Sun>=15 2:00s 0 -
143Rule AT 1987 only - Oct Sun>=22 2:00s 1:00 -
144Rule AT 1988 1990 - Oct lastSun 2:00s 1:00 -
145Rule AT 1991 1999 - Oct Sun>=1 2:00s 1:00 -
146Rule AT 1991 2005 - Mar lastSun 2:00s 0 -
147Rule AT 2000 only - Aug lastSun 2:00s 1:00 -
148Rule AT 2001 max - Oct Sun>=1 2:00s 1:00 -
149Rule AT 2006 only - Apr Sun>=1 2:00s 0 -
150Rule AT 2007 only - Mar lastSun 2:00s 0 -
151Rule AT 2008 max - Apr Sun>=1 2:00s 0 -
152# Zone NAME GMTOFF RULES FORMAT [UNTIL]
153Zone Australia/Hobart 9:49:16 - LMT 1895 Sep
154 10:00 - EST 1916 Oct 1 2:00
155 10:00 1:00 EST 1917 Feb
156 10:00 Aus EST 1967
157 10:00 AT EST
158Zone Australia/Currie 9:35:28 - LMT 1895 Sep
159 10:00 - EST 1916 Oct 1 2:00
160 10:00 1:00 EST 1917 Feb
161 10:00 Aus EST 1971 Jul
162 10:00 AT EST
163
164# Victoria
165# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
166Rule AV 1971 1985 - Oct lastSun 2:00s 1:00 -
167Rule AV 1972 only - Feb lastSun 2:00s 0 -
168Rule AV 1973 1985 - Mar Sun>=1 2:00s 0 -
169Rule AV 1986 1990 - Mar Sun>=15 2:00s 0 -
170Rule AV 1986 1987 - Oct Sun>=15 2:00s 1:00 -
171Rule AV 1988 1999 - Oct lastSun 2:00s 1:00 -
172Rule AV 1991 1994 - Mar Sun>=1 2:00s 0 -
173Rule AV 1995 2005 - Mar lastSun 2:00s 0 -
174Rule AV 2000 only - Aug lastSun 2:00s 1:00 -
175Rule AV 2001 2007 - Oct lastSun 2:00s 1:00 -
176Rule AV 2006 only - Apr Sun>=1 2:00s 0 -
177Rule AV 2007 only - Mar lastSun 2:00s 0 -
178Rule AV 2008 max - Apr Sun>=1 2:00s 0 -
179Rule AV 2008 max - Oct Sun>=1 2:00s 1:00 -
180# Zone NAME GMTOFF RULES FORMAT [UNTIL]
181Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb
182 10:00 Aus EST 1971
183 10:00 AV EST
184
185# New South Wales
186# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
187Rule AN 1971 1985 - Oct lastSun 2:00s 1:00 -
188Rule AN 1972 only - Feb 27 2:00s 0 -
189Rule AN 1973 1981 - Mar Sun>=1 2:00s 0 -
190Rule AN 1982 only - Apr Sun>=1 2:00s 0 -
191Rule AN 1983 1985 - Mar Sun>=1 2:00s 0 -
192Rule AN 1986 1989 - Mar Sun>=15 2:00s 0 -
193Rule AN 1986 only - Oct 19 2:00s 1:00 -
194Rule AN 1987 1999 - Oct lastSun 2:00s 1:00 -
195Rule AN 1990 1995 - Mar Sun>=1 2:00s 0 -
196Rule AN 1996 2005 - Mar lastSun 2:00s 0 -
197Rule AN 2000 only - Aug lastSun 2:00s 1:00 -
198Rule AN 2001 2007 - Oct lastSun 2:00s 1:00 -
199Rule AN 2006 only - Apr Sun>=1 2:00s 0 -
200Rule AN 2007 only - Mar lastSun 2:00s 0 -
201Rule AN 2008 max - Apr Sun>=1 2:00s 0 -
202Rule AN 2008 max - Oct Sun>=1 2:00s 1:00 -
203# Zone NAME GMTOFF RULES FORMAT [UNTIL]
204Zone Australia/Sydney 10:04:52 - LMT 1895 Feb
205 10:00 Aus EST 1971
206 10:00 AN EST
207Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb
208 10:00 - EST 1896 Aug 23
209 9:00 - CST 1899 May
210 9:30 Aus CST 1971
211 9:30 AN CST 2000
212 9:30 AS CST
213
214# Lord Howe Island
215# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
216Rule LH 1981 1984 - Oct lastSun 2:00 1:00 -
217Rule LH 1982 1985 - Mar Sun>=1 2:00 0 -
218Rule LH 1985 only - Oct lastSun 2:00 0:30 -
219Rule LH 1986 1989 - Mar Sun>=15 2:00 0 -
220Rule LH 1986 only - Oct 19 2:00 0:30 -
221Rule LH 1987 1999 - Oct lastSun 2:00 0:30 -
222Rule LH 1990 1995 - Mar Sun>=1 2:00 0 -
223Rule LH 1996 2005 - Mar lastSun 2:00 0 -
224Rule LH 2000 only - Aug lastSun 2:00 0:30 -
225Rule LH 2001 2007 - Oct lastSun 2:00 0:30 -
226Rule LH 2006 only - Apr Sun>=1 2:00 0 -
227Rule LH 2007 only - Mar lastSun 2:00 0 -
228Rule LH 2008 max - Apr Sun>=1 2:00 0 -
229Rule LH 2008 max - Oct Sun>=1 2:00 0:30 -
230Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb
231 10:00 - EST 1981 Mar
232 10:30 LH LHST
233
234# Australian miscellany
235#
236# Ashmore Is, Cartier
237# no indigenous inhabitants; only seasonal caretakers
238# no times are set
239#
240# Coral Sea Is
241# no indigenous inhabitants; only meteorologists
242# no times are set
243#
244# Macquarie
245# permanent occupation (scientific station) since 1948;
246# sealing and penguin oil station operated 1888/1917
247# like Australia/Hobart
248
249# Christmas
250# Zone NAME GMTOFF RULES FORMAT [UNTIL]
251Zone Indian/Christmas 7:02:52 - LMT 1895 Feb
252 7:00 - CXT # Christmas Island Time
253
254# Cook Is
255# From Shanks & Pottenger:
256# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
257Rule Cook 1978 only - Nov 12 0:00 0:30 HS
258Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 -
259Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 HS
260# Zone NAME GMTOFF RULES FORMAT [UNTIL]
261Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua
262 -10:30 - CKT 1978 Nov 12 # Cook Is Time
263 -10:00 Cook CK%sT
264
265# Cocos
266# These islands were ruled by the Ross family from about 1830 to 1978.
267# We don't know when standard time was introduced; for now, we guess 1900.
268# Zone NAME GMTOFF RULES FORMAT [UNTIL]
269Zone Indian/Cocos 6:27:40 - LMT 1900
270 6:30 - CCT # Cocos Islands Time
271
272# Fiji
peytoia75f4ffe2010-02-12 14:38:16 +0900273# From Alexander Krivenyshev (2009-11-10):
274# According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST
275# from November 29th 2009 to April 25th 2010.
276#
277# "Daylight savings to commence this month"
278# <a href="http://www.radiofiji.com.fj/fullstory.php?id=23719">
279# http://www.radiofiji.com.fj/fullstory.php?id=23719
280# </a>
281# or
282# <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji01.html">
283# http://www.worldtimezone.com/dst_news/dst_news_fiji01.html
284# </a>
285
286# From Steffen Thorsen (2009-11-10):
287# The Fiji Government has posted some more details about the approved
288# amendments:
289# <a href="http://www.fiji.gov.fj/publish/page_16198.shtml">
290# http://www.fiji.gov.fj/publish/page_16198.shtml
291# </a>
peytoia81a89a92010-03-11 11:54:17 +0900292
293# From Steffen Thorsen (2010-03-03):
294# The Cabinet in Fiji has decided to end DST about a month early, on
295# 2010-03-28 at 03:00.
296# The plan is to observe DST again, from 2010-10-24 to sometime in March
297# 2011 (last Sunday a good guess?).
298#
299# Official source:
300# <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">
301# 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
302# </a>
303#
304# A bit more background info here:
305# <a href="http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html">
306# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
307# </a>
308
duke6e45e102007-12-01 00:00:00 +0000309# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
310Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S
311Rule Fiji 1999 2000 - Feb lastSun 3:00 0 -
peytoia75f4ffe2010-02-12 14:38:16 +0900312Rule Fiji 2009 only - Nov 29 2:00 1:00 S
peytoia81a89a92010-03-11 11:54:17 +0900313Rule Fiji 2010 only - Mar lastSun 3:00 0 -
314Rule Fiji 2010 only - Oct 24 2:00 1:00 S
315Rule Fiji 2011 only - Mar lastSun 3:00 0 -
duke6e45e102007-12-01 00:00:00 +0000316# Zone NAME GMTOFF RULES FORMAT [UNTIL]
317Zone Pacific/Fiji 11:53:40 - LMT 1915 Oct 26 # Suva
318 12:00 Fiji FJ%sT # Fiji Time
319
320# French Polynesia
321# Zone NAME GMTOFF RULES FORMAT [UNTIL]
322Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea
323 -9:00 - GAMT # Gambier Time
324Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct
325 -9:30 - MART # Marquesas Time
326Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete
327 -10:00 - TAHT # Tahiti Time
328# Clipperton (near North America) is administered from French Polynesia;
329# it is uninhabited.
330
331# Guam
332# Zone NAME GMTOFF RULES FORMAT [UNTIL]
333Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31
334 9:39:00 - LMT 1901 # Agana
335 10:00 - GST 2000 Dec 23 # Guam
336 10:00 - ChST # Chamorro Standard Time
337
338# Kiribati
339# Zone NAME GMTOFF RULES FORMAT [UNTIL]
340Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki
341 12:00 - GILT # Gilbert Is Time
342Zone Pacific/Enderbury -11:24:20 - LMT 1901
343 -12:00 - PHOT 1979 Oct # Phoenix Is Time
344 -11:00 - PHOT 1995
345 13:00 - PHOT
346Zone Pacific/Kiritimati -10:29:20 - LMT 1901
347 -10:40 - LINT 1979 Oct # Line Is Time
348 -10:00 - LINT 1995
349 14:00 - LINT
350
351# N Mariana Is
352# Zone NAME GMTOFF RULES FORMAT [UNTIL]
353Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
354 9:43:00 - LMT 1901
355 9:00 - MPT 1969 Oct # N Mariana Is Time
356 10:00 - MPT 2000 Dec 23
357 10:00 - ChST # Chamorro Standard Time
358
359# Marshall Is
360# Zone NAME GMTOFF RULES FORMAT [UNTIL]
361Zone Pacific/Majuro 11:24:48 - LMT 1901
362 11:00 - MHT 1969 Oct # Marshall Islands Time
363 12:00 - MHT
364Zone Pacific/Kwajalein 11:09:20 - LMT 1901
365 11:00 - MHT 1969 Oct
366 -12:00 - KWAT 1993 Aug 20 # Kwajalein Time
367 12:00 - MHT
368
369# Micronesia
370# Zone NAME GMTOFF RULES FORMAT [UNTIL]
371Zone Pacific/Truk 10:07:08 - LMT 1901
372 10:00 - TRUT # Truk Time
373Zone Pacific/Ponape 10:32:52 - LMT 1901 # Kolonia
374 11:00 - PONT # Ponape Time
375Zone Pacific/Kosrae 10:51:56 - LMT 1901
376 11:00 - KOST 1969 Oct # Kosrae Time
377 12:00 - KOST 1999
378 11:00 - KOST
379
380# Nauru
381# Zone NAME GMTOFF RULES FORMAT [UNTIL]
382Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe
383 11:30 - NRT 1942 Mar 15 # Nauru Time
384 9:00 - JST 1944 Aug 15
385 11:30 - NRT 1979 May
386 12:00 - NRT
387
388# New Caledonia
389# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
390Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 S
391Rule NC 1978 1979 - Feb 27 0:00 0 -
392Rule NC 1996 only - Dec 1 2:00s 1:00 S
393# Shanks & Pottenger say the following was at 2:00; go with IATA.
394Rule NC 1997 only - Mar 2 2:00s 0 -
395# Zone NAME GMTOFF RULES FORMAT [UNTIL]
396Zone Pacific/Noumea 11:05:48 - LMT 1912 Jan 13
397 11:00 NC NC%sT
398
399
400###############################################################################
401
402# New Zealand
403
404# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
405Rule NZ 1927 only - Nov 6 2:00 1:00 S
406Rule NZ 1928 only - Mar 4 2:00 0 M
407Rule NZ 1928 1933 - Oct Sun>=8 2:00 0:30 S
408Rule NZ 1929 1933 - Mar Sun>=15 2:00 0 M
409Rule NZ 1934 1940 - Apr lastSun 2:00 0 M
410Rule NZ 1934 1940 - Sep lastSun 2:00 0:30 S
411Rule NZ 1946 only - Jan 1 0:00 0 S
412# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
413# convenient notation for this so we must duplicate the Rule lines.
414Rule NZ 1974 only - Nov Sun>=1 2:00s 1:00 D
415Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 D
416Rule NZ 1975 only - Feb lastSun 2:00s 0 S
417Rule Chatham 1975 only - Feb lastSun 2:45s 0 S
418Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D
419Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 D
420Rule NZ 1976 1989 - Mar Sun>=1 2:00s 0 S
421Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 S
422Rule NZ 1989 only - Oct Sun>=8 2:00s 1:00 D
423Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 D
424Rule NZ 1990 2006 - Oct Sun>=1 2:00s 1:00 D
425Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 D
426Rule NZ 1990 2007 - Mar Sun>=15 2:00s 0 S
427Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 S
428Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D
429Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 D
430Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S
431Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 S
432# Zone NAME GMTOFF RULES FORMAT [UNTIL]
433Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2
434 11:30 NZ NZ%sT 1946 Jan 1
435 12:00 NZ NZ%sT
436Zone Pacific/Chatham 12:13:48 - LMT 1957 Jan 1
437 12:45 Chatham CHA%sT
438
439
440# Auckland Is
441# uninhabited; Maori and Moriori, colonial settlers, pastoralists, sealers,
442# and scientific personnel have wintered
443
444# Campbell I
445# minor whaling stations operated 1909/1914
446# scientific station operated 1941/1995;
447# previously whalers, sealers, pastoralists, and scientific personnel wintered
448# was probably like Pacific/Auckland
449
450###############################################################################
451
452
453# Niue
454# Zone NAME GMTOFF RULES FORMAT [UNTIL]
455Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi
456 -11:20 - NUT 1951 # Niue Time
457 -11:30 - NUT 1978 Oct 1
458 -11:00 - NUT
459
460# Norfolk
461# Zone NAME GMTOFF RULES FORMAT [UNTIL]
462Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston
463 11:12 - NMT 1951 # Norfolk Mean Time
464 11:30 - NFT # Norfolk Time
465
466# Palau (Belau)
467# Zone NAME GMTOFF RULES FORMAT [UNTIL]
468Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror
469 9:00 - PWT # Palau Time
470
471# Papua New Guinea
472# Zone NAME GMTOFF RULES FORMAT [UNTIL]
473Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
474 9:48:32 - PMMT 1895 # Port Moresby Mean Time
475 10:00 - PGT # Papua New Guinea Time
476
477# Pitcairn
478# Zone NAME GMTOFF RULES FORMAT [UNTIL]
479Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown
480 -8:30 - PNT 1998 Apr 27 00:00
481 -8:00 - PST # Pitcairn Standard Time
482
483# American Samoa
484Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
485 -11:22:48 - LMT 1911
486 -11:30 - SAMT 1950 # Samoa Time
487 -11:00 - NST 1967 Apr # N=Nome
488 -11:00 - BST 1983 Nov 30 # B=Bering
489 -11:00 - SST # S=Samoa
490
491# Samoa
peytoiafdd22f32009-08-31 14:50:33 +0900492
peytoia81a89a92010-03-11 11:54:17 +0900493# From Steffen Thorsen (2009-10-16):
494# We have been in contact with the government of Samoa again, and received
495# the following info:
peytoiadc34a752009-11-11 15:38:47 +0900496#
peytoia81a89a92010-03-11 11:54:17 +0900497# "Cabinet has now approved Daylight Saving to be effected next year
498# commencing from the last Sunday of September 2010 and conclude first
499# Sunday of April 2011."
500#
501# Background info:
peytoiadc34a752009-11-11 15:38:47 +0900502# <a href="http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html">
503# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
504# </a>
peytoiadc34a752009-11-11 15:38:47 +0900505#
peytoia81a89a92010-03-11 11:54:17 +0900506# Samoa's Daylight Saving Time Act 2009 is available here, but does not
507# contain any dates:
508# <a href="http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf">
509# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
510# </a>
peytoiadc34a752009-11-11 15:38:47 +0900511
duke6e45e102007-12-01 00:00:00 +0000512Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5
513 -11:26:56 - LMT 1911
514 -11:30 - SAMT 1950 # Samoa Time
peytoia9e714d72010-03-30 18:35:47 +0900515 -11:00 - WST 2010 Sep 26
peytoia81a89a92010-03-11 11:54:17 +0900516 -11:00 1:00 WSDT 2011 Apr 3
peytoiadc34a752009-11-11 15:38:47 +0900517 -11:00 - WST
duke6e45e102007-12-01 00:00:00 +0000518
519# Solomon Is
520# excludes Bougainville, for which see Papua New Guinea
521# Zone NAME GMTOFF RULES FORMAT [UNTIL]
522Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara
523 11:00 - SBT # Solomon Is Time
524
525# Tokelau Is
526# Zone NAME GMTOFF RULES FORMAT [UNTIL]
527Zone Pacific/Fakaofo -11:24:56 - LMT 1901
528 -10:00 - TKT # Tokelau Time
529
530# Tonga
531# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
532Rule Tonga 1999 only - Oct 7 2:00s 1:00 S
533Rule Tonga 2000 only - Mar 19 2:00s 0 -
534Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S
535Rule Tonga 2001 2002 - Jan lastSun 2:00 0 -
536# Zone NAME GMTOFF RULES FORMAT [UNTIL]
537Zone Pacific/Tongatapu 12:19:20 - LMT 1901
538 12:20 - TOT 1941 # Tonga Time
539 13:00 - TOT 1999
540 13:00 Tonga TO%sT
541
542# Tuvalu
543# Zone NAME GMTOFF RULES FORMAT [UNTIL]
544Zone Pacific/Funafuti 11:56:52 - LMT 1901
545 12:00 - TVT # Tuvalu Time
546
547
548# US minor outlying islands
549
550# Howland, Baker
551# Howland was mined for guano by American companies 1857-1878 and British
552# 1886-1891; Baker was similar but exact dates are not known.
553# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
554# uninhabited thereafter.
555# Howland observed Hawaii Standard Time (UTC-10:30) in 1937;
556# see page 206 of Elgen M. Long and Marie K. Long,
557# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
558# So most likely Howland and Baker observed Hawaii Time from 1935
559# until they were abandoned after the war.
560
561# Jarvis
562# Mined for guano by American companies 1857-1879 and British 1883?-1891?.
563# Inhabited by civilians 1935-1942; IGY scientific base 1957-1958;
564# uninhabited thereafter.
565# no information; was probably like Pacific/Kiritimati
566
567# Johnston
568# Zone NAME GMTOFF RULES FORMAT [UNTIL]
569Zone Pacific/Johnston -10:00 - HST
570
571# Kingman
572# uninhabited
573
574# Midway
575#
576# From Mark Brader (2005-01-23):
577# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
578# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
579# reproduced a Pan American Airways timeables from 1936, for their weekly
580# "Orient Express" flights between San Francisco and Manila, and connecting
581# flights to Chicago and the US East Coast. As it uses some time zone
582# designations that I've never seen before:....
583# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun.
584# " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A "
585#
586Zone Pacific/Midway -11:49:28 - LMT 1901
587 -11:00 - NST 1956 Jun 3
588 -11:00 1:00 NDT 1956 Sep 2
589 -11:00 - NST 1967 Apr # N=Nome
590 -11:00 - BST 1983 Nov 30 # B=Bering
591 -11:00 - SST # S=Samoa
592
593# Palmyra
594# uninhabited since World War II; was probably like Pacific/Kiritimati
595
596# Wake
597# Zone NAME GMTOFF RULES FORMAT [UNTIL]
598Zone Pacific/Wake 11:06:28 - LMT 1901
599 12:00 - WAKT # Wake Time
600
601
602# Vanuatu
603# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
604Rule Vanuatu 1983 only - Sep 25 0:00 1:00 S
605Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 -
606Rule Vanuatu 1984 only - Oct 23 0:00 1:00 S
607Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 S
608Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 -
609Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 S
610# Zone NAME GMTOFF RULES FORMAT [UNTIL]
611Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
612 11:00 Vanuatu VU%sT # Vanuatu Time
613
614# Wallis and Futuna
615# Zone NAME GMTOFF RULES FORMAT [UNTIL]
616Zone Pacific/Wallis 12:15:20 - LMT 1901
617 12:00 - WFT # Wallis & Futuna Time
618
619###############################################################################
620
621# NOTES
622
623# This data is by no means authoritative; if you think you know better,
624# go ahead and edit the file (and please send any changes to
625# tz@elsie.nci.nih.gov for general use in the future).
626
627# From Paul Eggert (2006-03-22):
628# A good source for time zone historical data outside the U.S. is
629# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
630# San Diego: ACS Publications, Inc. (2003).
631#
632# Gwillim Law writes that a good source
633# for recent time zone data is the International Air Transport
634# Association's Standard Schedules Information Manual (IATA SSIM),
635# published semiannually. Law sent in several helpful summaries
636# of the IATA's data after 1990.
637#
638# Except where otherwise noted, Shanks & Pottenger is the source for
639# entries through 1990, and IATA SSIM is the source for entries afterwards.
640#
641# Another source occasionally used is Edward W. Whitman, World Time Differences,
642# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
643# I found in the UCLA library.
644#
645# A reliable and entertaining source about time zones is
646# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
647#
648# I invented the abbreviations marked `*' in the following table;
649# the rest are from earlier versions of this file, or from other sources.
650# Corrections are welcome!
651# std dst
652# LMT Local Mean Time
653# 8:00 WST WST Western Australia
654# 8:45 CWST CWST Central Western Australia*
655# 9:00 JST Japan
656# 9:30 CST CST Central Australia
657# 10:00 EST EST Eastern Australia
658# 10:00 ChST Chamorro
659# 10:30 LHST LHST Lord Howe*
660# 11:30 NZMT NZST New Zealand through 1945
661# 12:00 NZST NZDT New Zealand 1946-present
662# 12:45 CHAST CHADT Chatham*
663# -11:00 SST Samoa
664# -10:00 HST Hawaii
665# - 8:00 PST Pitcairn*
666#
667# See the `northamerica' file for Hawaii.
668# See the `southamerica' file for Easter I and the Galapagos Is.
669
670###############################################################################
671
672# Australia
673
674# From Paul Eggert (2005-12-08):
675# <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">
676# Implementation Dates of Daylight Saving Time within Australia
677# </a> summarizes daylight saving issues in Australia.
678
679# From Arthur David Olson (2005-12-12):
680# <a href="http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving">
681# Lawlink NSW:Daylight Saving in New South Wales
682# </a> covers New South Wales in particular.
683
684# From John Mackin (1991-03-06):
685# We in Australia have _never_ referred to DST as `daylight' time.
686# It is called `summer' time. Now by a happy coincidence, `summer'
687# and `standard' happen to start with the same letter; hence, the
688# abbreviation does _not_ change...
689# The legislation does not actually define abbreviations, at least
690# in this State, but the abbreviation is just commonly taken to be the
691# initials of the phrase, and the legislation here uniformly uses
692# the phrase `summer time' and does not use the phrase `daylight
693# time'.
694# Announcers on the Commonwealth radio network, the ABC (for Australian
695# Broadcasting Commission), use the phrases `Eastern Standard Time'
696# or `Eastern Summer Time'. (Note, though, that as I say in the
697# current australasia file, there is really no such thing.) Announcers
698# on its overseas service, Radio Australia, use the same phrases
699# prefixed by the word `Australian' when referring to local times;
700# time announcements on that service, naturally enough, are made in UTC.
701
702# From Arthur David Olson (1992-03-08):
703# Given the above, what's chosen for year-round use is:
704# CST for any place operating at a GMTOFF of 9:30
705# WST for any place operating at a GMTOFF of 8:00
706# EST for any place operating at a GMTOFF of 10:00
707
708# From Chuck Soper (2006-06-01):
709# I recently found this Australian government web page on time zones:
710# <http://www.australia.gov.au/about-australia-13time>
711# And this government web page lists time zone names and abbreviations:
712# <http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml>
713
714# From Paul Eggert (2001-04-05), summarizing a long discussion about "EST"
715# versus "AEST" etc.:
716#
717# I see the following points of dispute:
718#
719# * How important are unique time zone abbreviations?
720#
721# Here I tend to agree with the point (most recently made by Chris
722# Newman) that unique abbreviations should not be essential for proper
723# operation of software. We have other instances of ambiguity
724# (e.g. "IST" denoting both "Israel Standard Time" and "Indian
725# Standard Time"), and they are not likely to go away any time soon.
726# In the old days, some software mistakenly relied on unique
727# abbreviations, but this is becoming less true with time, and I don't
728# think it's that important to cater to such software these days.
729#
730# On the other hand, there is another motivation for unambiguous
731# abbreviations: it cuts down on human confusion. This is
732# particularly true for Australia, where "EST" can mean one thing for
733# time T and a different thing for time T plus 1 second.
734#
735# * Does the relevant legislation indicate which abbreviations should be used?
736#
737# Here I tend to think that things are a mess, just as they are in
738# many other countries. We Americans are currently disagreeing about
739# which abbreviation to use for the newly legislated Chamorro Standard
740# Time, for example.
741#
742# Personally, I would prefer to use common practice; I would like to
743# refer to legislation only for examples of common practice, or as a
744# tiebreaker.
745#
746# * Do Australians more often use "Eastern Daylight Time" or "Eastern
747# Summer Time"? Do they typically prefix the time zone names with
748# the word "Australian"?
749#
750# My own impression is that both "Daylight Time" and "Summer Time" are
751# common and are widely understood, but that "Summer Time" is more
752# popular; and that the leading "A" is also common but is omitted more
753# often than not. I just used AltaVista advanced search and got the
754# following count of page hits:
755#
756# 1,103 "Eastern Summer Time" AND domain:au
757# 971 "Australian Eastern Summer Time" AND domain:au
758# 613 "Eastern Daylight Time" AND domain:au
759# 127 "Australian Eastern Daylight Time" AND domain:au
760#
761# Here "Summer" seems quite a bit more popular than "Daylight",
762# particularly when we know the time zone is Australian and not US,
763# say. The "Australian" prefix seems to be popular for Eastern Summer
764# Time, but unpopular for Eastern Daylight Time.
765#
766# For abbreviations, tools like AltaVista are less useful because of
767# ambiguity. Many hits are not really time zones, unfortunately, and
768# many hits denote US time zones and not Australian ones. But here
769# are the hit counts anyway:
770#
771# 161,304 "EST" and domain:au
772# 25,156 "EDT" and domain:au
773# 18,263 "AEST" and domain:au
774# 10,416 "AEDT" and domain:au
775#
776# 14,538 "CST" and domain:au
777# 5,728 "CDT" and domain:au
778# 176 "ACST" and domain:au
779# 29 "ACDT" and domain:au
780#
781# 7,539 "WST" and domain:au
782# 68 "AWST" and domain:au
783#
784# This data suggest that Australians tend to omit the "A" prefix in
785# practice. The situation for "ST" versus "DT" is less clear, given
786# the ambiguities involved.
787#
788# * How do Australians feel about the abbreviations in the tz database?
789#
790# If you just count Australians on this list, I count 2 in favor and 3
791# against. One of the "against" votes (David Keegel) counseled delay,
792# saying that both AEST/AEDT and EST/EST are widely used and
793# understood in Australia.
794
795# From Paul Eggert (1995-12-19):
796# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
797# Mark Prior writes that his newspaper
798# reports that NSW's fall 1995 change will occur at 2:00,
799# but Robert Elz says it's been 3:00 in Victoria since 1970
800# and perhaps the newspaper's `2:00' is referring to standard time.
801# For now we'll continue to assume 2:00s for changes since 1960.
802
803# From Eric Ulevik (1998-01-05):
804#
805# Here are some URLs to Australian time legislation. These URLs are stable,
806# and should probably be included in the data file. There are probably more
807# relevant entries in this database.
808#
809# NSW (including LHI and Broken Hill):
810# <a href="http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html">
811# Standard Time Act 1987 (updated 1995-04-04)
812# </a>
813# ACT
814# <a href="http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html">
815# Standard Time and Summer Time Act 1972
816# </a>
817# SA
818# <a href="http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html">
819# Standard Time Act, 1898
820# </a>
821
822# From David Grosz (2005-06-13):
823# It was announced last week that Daylight Saving would be extended by
824# one week next year to allow for the 2006 Commonwealth Games.
825# Daylight Saving is now to end for next year only on the first Sunday
826# in April instead of the last Sunday in March.
827#
828# From Gwillim Law (2005-06-14):
829# I did some Googling and found that all of those states (and territory) plan
830# to extend DST together in 2006.
831# ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt
832# New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html
833# South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html
834# Tasmania: http://www.media.tas.gov.au/release.php?id=14772
835# Victoria: I wasn't able to find anything separate, but the other articles
836# allude to it.
837# But not Queensland
838# http://www.news.com.au/story/0,10117,15564030-1248,00.html.
839
840# Northern Territory
841
842# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
843# # The NORTHERN TERRITORY.. [ Courtesy N.T. Dept of the Chief Minister ]
844# # [ Nov 1990 ]
845# # N.T. have never utilised any DST due to sub-tropical/tropical location.
846# ...
847# Zone Australia/North 9:30 - CST
848
849# From Bradley White (1991-03-04):
850# A recent excerpt from an Australian newspaper...
851# the Northern Territory do[es] not have daylight saving.
852
853# Western Australia
854
855# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
856# # The state of WESTERN AUSTRALIA.. [ Courtesy W.A. dept Premier+Cabinet ]
857# # [ Nov 1990 ]
858# # W.A. suffers from a great deal of public and political opposition to
859# # DST in principle. A bill is brought before parliament in most years, but
860# # usually defeated either in the upper house, or in party caucus
861# # before reaching parliament.
862# ...
863# Zone Australia/West 8:00 AW %sST
864# ...
865# Rule AW 1974 only - Oct lastSun 2:00 1:00 D
866# Rule AW 1975 only - Mar Sun>=1 3:00 0 W
867# Rule AW 1983 only - Oct lastSun 2:00 1:00 D
868# Rule AW 1984 only - Mar Sun>=1 3:00 0 W
869
870# From Bradley White (1991-03-04):
871# A recent excerpt from an Australian newspaper...
872# Western Australia...do[es] not have daylight saving.
873
874# From John D. Newman via Bradley White (1991-11-02):
875# Western Australia is still on "winter time". Some DH in Sydney
876# rang me at home a few days ago at 6.00am. (He had just arrived at
877# work at 9.00am.)
878# W.A. is switching to Summer Time on Nov 17th just to confuse
879# everybody again.
880
881# From Arthur David Olson (1992-03-08):
882# The 1992 ending date used in the rules is a best guess;
883# it matches what was used in the past.
884
885# <a href="http://www.bom.gov.au/faq/faqgen.htm">
886# The Australian Bureau of Meteorology FAQ
887# </a> (1999-09-27) writes that Giles Meteorological Station uses
888# South Australian time even though it's located in Western Australia.
889
890# Queensland
891# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
892# # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ]
893# # [ Dec 1990 ]
894# ...
895# Zone Australia/Queensland 10:00 AQ %sST
896# ...
897# Rule AQ 1971 only - Oct lastSun 2:00 1:00 D
898# Rule AQ 1972 only - Feb lastSun 3:00 0 E
899# Rule AQ 1989 max - Oct lastSun 2:00 1:00 D
900# Rule AQ 1990 max - Mar Sun>=1 3:00 0 E
901
902# From Bradley White (1989-12-24):
903# "Australia/Queensland" now observes daylight time (i.e. from
904# October 1989).
905
906# From Bradley White (1991-03-04):
907# A recent excerpt from an Australian newspaper...
908# ...Queensland...[has] agreed to end daylight saving
909# at 3am tomorrow (March 3)...
910
911# From John Mackin (1991-03-06):
912# I can certainly confirm for my part that Daylight Saving in NSW did in fact
913# end on Sunday, 3 March. I don't know at what hour, though. (It surprised
914# me.)
915
916# From Bradley White (1992-03-08):
917# ...there was recently a referendum in Queensland which resulted
918# in the experimental daylight saving system being abandoned. So, ...
919# ...
920# Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D
921# Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S
922# ...
923
924# From Arthur David Olson (1992-03-08):
925# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes.
926
927# From Christopher Hunt (2006-11-21), after an advance warning
928# from Jesper Norgaard Welen (2006-11-01):
929# WA are trialing DST for three years.
930# <http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf>
931
932# From Rives McDow (2002-04-09):
933# The most interesting region I have found consists of three towns on the
934# southern coast.... South Australia observes daylight saving time; Western
935# Australia does not. The two states are one and a half hours apart. The
936# residents decided to forget about this nonsense of changing the clock so
937# much and set the local time 20 hours and 45 minutes from the
938# international date line, or right in the middle of the time of South
939# Australia and Western Australia....
940#
941# From Paul Eggert (2002-04-09):
942# This is confirmed by the section entitled
943# "What's the deal with time zones???" in
944# <http://www.earthsci.unimelb.edu.au/~awatkins/null.html>.
945#
946# From Alex Livingston (2006-12-07):
947# ... it was just on four years ago that I drove along the Eyre Highway,
948# which passes through eastern Western Australia close to the southern
949# coast of the continent.
950#
951# I paid particular attention to the time kept there. There can be no
952# dispute that UTC+08:45 was considered "the time" from the border
953# village just inside the border with South Australia to as far west
954# as just east of Caiguna. There can also be no dispute that Eucla is
955# the largest population centre in this zone....
956#
957# Now that Western Australia is observing daylight saving, the
958# question arose whether this part of the state would follow suit. I
959# just called the border village and confirmed that indeed they have,
960# meaning that they are now observing UTC+09:45.
961#
962# (2006-12-09):
963# I personally doubt that either experimentation with daylight saving
964# in WA or its introduction in SA had anything to do with the genesis
965# of this time zone. My hunch is that it's been around since well
966# before 1975. I remember seeing it noted on road maps decades ago.
967
968# From Paul Eggert (2006-12-15):
969# For lack of better info, assume the tradition dates back to the
970# introduction of standard time in 1895.
971
972
973# southeast Australia
974#
975# From Paul Eggert (2007-07-23):
976# Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT
977# end DST the first Sunday in April and start DST the first Sunday in October.
978# http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html
979
980
981# South Australia
982
983# From Bradley White (1991-03-04):
984# A recent excerpt from an Australian newspaper...
985# ...South Australia...[has] agreed to end daylight saving
986# at 3am tomorrow (March 3)...
987
988# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
989# # The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ]
990# # [ Nov 1990 ]
991# ...
992# Zone Australia/South 9:30 AS %sST
993# ...
994# Rule AS 1971 max - Oct lastSun 2:00 1:00 D
995# Rule AS 1972 1985 - Mar Sun>=1 3:00 0 C
996# Rule AS 1986 1990 - Mar Sun>=15 3:00 0 C
997# Rule AS 1991 max - Mar Sun>=1 3:00 0 C
998
999# From Bradley White (1992-03-11):
1000# Recent correspondence with a friend in Adelaide
1001# contained the following exchange: "Due to the Adelaide Festival,
1002# South Australia delays setting back our clocks for a few weeks."
1003
1004# From Robert Elz (1992-03-13):
1005# I heard that apparently (or at least, it appears that)
1006# South Aus will have an extra 3 weeks daylight saving every even
1007# numbered year (from 1990). That's when the Adelaide Festival
1008# is on...
1009
1010# From Robert Elz (1992-03-16, 00:57:07 +1000):
1011# DST didn't end in Adelaide today (yesterday)....
1012# But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever...
1013# (it's just as likely to be "the Sunday we pick for this year"...).
1014
1015# From Bradley White (1994-04-11):
1016# If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March,
1017# 1994 was at +0930 as John Connolly's customer seems to assert, then I can
1018# only conclude that the actual rule is more complicated....
1019
1020# From John Warburton (1994-10-07):
1021# The new Daylight Savings dates for South Australia ...
1022# was gazetted in the Government Hansard on Sep 26 1994....
1023# start on last Sunday in October and end in last sunday in March.
1024
1025# From Paul Eggert (2007-07-23):
1026# See "southeast Australia" above for 2008 and later.
1027
1028# Tasmania
1029
1030# The rules for 1967 through 1991 were reported by George Shepherd
1031# via Simon Woodhead via Robert Elz (1991-03-06):
1032# # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
1033# # [ Nov 1990 ]
1034
1035# From Bill Hart via Guy Harris (1991-10-10):
1036# Oh yes, the new daylight savings rules are uniquely tasmanian, we have
1037# 6 weeks a year now when we are out of sync with the rest of Australia
1038# (but nothing new about that).
1039
1040# From Alex Livingston (1999-10-04):
1041# I heard on the ABC (Australian Broadcasting Corporation) radio news on the
1042# (long) weekend that Tasmania, which usually goes its own way in this regard,
1043# has decided to join with most of NSW, the ACT, and most of Victoria
1044# (Australia) and start daylight saving on the last Sunday in August in 2000
1045# instead of the first Sunday in October.
1046
1047# Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules:
1048# http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300
1049
1050# From Paul Eggert (2007-07-23):
1051# See "southeast Australia" above for 2008 and later.
1052
1053# Victoria
1054
1055# The rules for 1971 through 1991 were reported by George Shepherd
1056# via Simon Woodhead via Robert Elz (1991-03-06):
1057# # The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
1058# # [ Nov 1990 ]
1059
1060# From Scott Harrington (2001-08-29):
1061# On KQED's "City Arts and Lectures" program last night I heard an
1062# interesting story about daylight savings time. Dr. John Heilbron was
1063# discussing his book "The Sun in the Church: Cathedrals as Solar
1064# Observatories"[1], and in particular the Shrine of Remembrance[2] located
1065# in Melbourne, Australia.
1066#
1067# Apparently the shrine's main purpose is a beam of sunlight which
1068# illuminates a special spot on the floor at the 11th hour of the 11th day
1069# of the 11th month (Remembrance Day) every year in memory of Australia's
1070# fallen WWI soldiers. And if you go there on Nov. 11, at 11am local time,
1071# you will indeed see the sunbeam illuminate the special spot at the
1072# expected time.
1073#
1074# However, that is only because of some special mirror contraption that had
1075# to be employed, since due to daylight savings time, the true solar time of
1076# the remembrance moment occurs one hour later (or earlier?). Perhaps
1077# someone with more information on this jury-rig can tell us more.
1078#
1079# [1] http://www.hup.harvard.edu/catalog/HEISUN.html
1080# [2] http://www.shrine.org.au
1081
1082# From Paul Eggert (2007-07-23):
1083# See "southeast Australia" above for 2008 and later.
1084
1085# New South Wales
1086
1087# From Arthur David Olson:
1088# New South Wales and subjurisdictions have their own ideas of a fun time.
1089# Based on law library research by John Mackin,
1090# who notes:
1091# In Australia, time is not legislated federally, but rather by the
1092# individual states. Thus, while such terms as ``Eastern Standard Time''
1093# [I mean, of course, Australian EST, not any other kind] are in common
1094# use, _they have NO REAL MEANING_, as they are not defined in the
1095# legislation. This is very important to understand.
1096# I have researched New South Wales time only...
1097
1098# From Eric Ulevik (1999-05-26):
1099# DST will start in NSW on the last Sunday of August, rather than the usual
1100# October in 2000. [See: Matthew Moore,
1101# <a href="http://www.smh.com.au/news/9905/26/pageone/pageone4.html">
1102# Two months more daylight saving
1103# </a>
1104# Sydney Morning Herald (1999-05-26).]
1105
1106# From Paul Eggert (1999-09-27):
1107# See the following official NSW source:
1108# <a href="http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ">
1109# Daylight Saving in New South Wales.
1110# </a>
1111#
1112# Narrabri Shire (NSW) council has announced it will ignore the extension of
1113# daylight saving next year. See:
1114# <a href="http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm">
1115# Narrabri Council to ignore daylight saving
1116# </a> (1999-07-22). For now, we'll wait to see if this really happens.
1117#
1118# Victoria will following NSW. See:
1119# <a href="http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm">
1120# Vic to extend daylight saving
1121# </a> (1999-07-28).
1122#
1123# However, South Australia rejected the DST request. See:
1124# <a href="http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm">
1125# South Australia rejects Olympics daylight savings request
1126# </a> (1999-07-19).
1127#
1128# Queensland also will not observe DST for the Olympics. See:
1129# <a href="http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm">
1130# Qld says no to daylight savings for Olympics
1131# </a> (1999-06-01), which quotes Queensland Premier Peter Beattie as saying
1132# ``Look you've got to remember in my family when this came up last time
1133# I voted for it, my wife voted against it and she said to me it's all very
1134# well for you, you don't have to worry about getting the children out of
1135# bed, getting them to school, getting them to sleep at night.
1136# I've been through all this argument domestically...my wife rules.''
1137#
1138# Broken Hill will stick with South Australian time in 2000. See:
1139# <a href="http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm">
1140# Broken Hill to be behind the times
1141# </a> (1999-07-21).
1142
1143# IATA SSIM (1998-09) says that the spring 2000 change for Australian
1144# Capital Territory, New South Wales except Lord Howe Island and Broken
1145# Hill, and Victoria will be August 27, presumably due to the Sydney Olympics.
1146
1147# From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29:
1148# The Queensland Premier Peter Beattie is encouraging northern NSW
1149# towns to use Queensland time.
1150
1151# From Paul Eggert (2007-07-23):
1152# See "southeast Australia" above for 2008 and later.
1153
1154# Yancowinna
1155
1156# From John Mackin (1989-01-04):
1157# `Broken Hill' means the County of Yancowinna.
1158
1159# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1160# # YANCOWINNA.. [ Confirmation courtesy of Broken Hill Postmaster ]
1161# # [ Dec 1990 ]
1162# ...
1163# # Yancowinna uses Central Standard Time, despite [its] location on the
1164# # New South Wales side of the S.A. border. Most business and social dealings
1165# # are with CST zones, therefore CST is legislated by local government
1166# # although the switch to Summer Time occurs in line with N.S.W. There have
1167# # been years when this did not apply, but the historical data is not
1168# # presently available.
1169# Zone Australia/Yancowinna 9:30 AY %sST
1170# ...
1171# Rule AY 1971 1985 - Oct lastSun 2:00 1:00 D
1172# Rule AY 1972 only - Feb lastSun 3:00 0 C
1173# [followed by other Rules]
1174
1175# Lord Howe Island
1176
1177# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1178# LHI... [ Courtesy of Pauline Van Winsen ]
1179# [ Dec 1990 ]
1180# Lord Howe Island is located off the New South Wales coast, and is half an
1181# hour ahead of NSW time.
1182
1183# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
1184# Lord Howe Island summer time in 2000/2001 will commence on the same
1185# date as the rest of NSW (i.e. 2000-08-27). For your information the
1186# Lord Howe Island Board (controlling authority for the Island) is
1187# seeking the community's views on various options for summer time
1188# arrangements on the Island, e.g. advance clocks by 1 full hour
1189# instead of only 30 minutes. Dependant on the wishes of residents
1190# the Board may approach the NSW government to change the existing
1191# arrangements. The starting date for summer time on the Island will
1192# however always coincide with the rest of NSW.
1193
1194# From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25):
1195# Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards
1196# clocks by 30 minutes when DST finishes. Since DST was most recently
1197# introduced in NSW, the "changeover" time on the Island has been 02:00 as
1198# shown on clocks on LHI. I guess this means that for 30 minutes at the start
1199# of DST, LHI is actually 1 hour ahead of the rest of NSW.
1200
1201# From Paul Eggert (2006-03-22):
1202# For Lord Howe dates we use Shanks & Pottenger through 1989, and
1203# Lonergan thereafter. For times we use Lonergan.
1204
1205# From Paul Eggert (2007-07-23):
1206# See "southeast Australia" above for 2008 and later.
1207
peytoiafdd22f32009-08-31 14:50:33 +09001208# From Steffen Thorsen (2009-04-28):
1209# According to the official press release, South Australia's extended daylight
1210# saving period will continue with the same rules as used during the 2008-2009
1211# summer (southern hemisphere).
1212#
1213# From
1214# <a href="http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf">
1215# http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf
1216# </a>
1217# The extended daylight saving period that South Australia has been trialling
1218# for over the last year is now set to be ongoing.
1219# Daylight saving will continue to start on the first Sunday in October each
1220# year and finish on the first Sunday in April the following year.
1221# Industrial Relations Minister, Paul Caica, says this provides South Australia
1222# with a consistent half hour time difference with NSW, Victoria, Tasmania and
1223# the ACT for all 52 weeks of the year...
1224#
1225# We have a wrap-up here:
1226# <a href="http://www.timeanddate.com/news/time/south-australia-extends-dst.html">
1227# http://www.timeanddate.com/news/time/south-australia-extends-dst.html
1228# </a>
duke6e45e102007-12-01 00:00:00 +00001229###############################################################################
1230
1231# New Zealand
1232
1233# From Mark Davies (1990-10-03):
1234# the 1989/90 year was a trial of an extended "daylight saving" period.
1235# This trial was deemed successful and the extended period adopted for
1236# subsequent years (with the addition of a further week at the start).
1237# source -- phone call to Ministry of Internal Affairs Head Office.
1238
1239# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1240# # The Country of New Zealand (Australia's east island -) Gee they hate that!
1241# # or is Australia the west island of N.Z.
1242# # [ courtesy of Geoff Tribble.. Auckland N.Z. ]
1243# # [ Nov 1990 ]
1244# ...
1245# Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D
1246# Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D
1247# Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S
1248# Rule NZ 1990 max - Mar lastSun 3:00 0 S
1249# ...
1250# Zone NZ 12:00 NZ NZ%sT # New Zealand
1251# Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island
1252
1253# From Arthur David Olson (1992-03-08):
1254# The chosen rules use the Davies October 8 values for the start of DST in 1989
1255# rather than the October 1 value.
1256
1257# From Paul Eggert (1995-12-19);
1258# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1259# Robert Uzgalis writes that the New Zealand Daylight
1260# Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
1261# time on both the first Sunday in October and the third Sunday in March.
1262# As with Australia, we'll assume the tradition is 2:00s, not 2:00.
1263#
1264# From Paul Eggert (2006-03-22):
1265# The Department of Internal Affairs (DIA) maintains a brief history,
1266# as does Carol Squires; see tz-link.htm for the full references.
1267# Use these sources in preference to Shanks & Pottenger.
1268#
1269# For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
1270# transitions at 2:45 local standard time; this confirms that Chatham
1271# is always exactly 45 minutes ahead of Auckland.
1272
1273# From Colin Sharples (2007-04-30):
1274# DST will now start on the last Sunday in September, and end on the
1275# first Sunday in April. The changes take effect this year, meaning
1276# that DST will begin on 2007-09-30 2008-04-06.
1277# http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended
1278
1279###############################################################################
1280
1281
1282# Fiji
1283
1284# Howse writes (p 153) that in 1879 the British governor of Fiji
1285# enacted an ordinance standardizing the islands on Antipodean Time
1286# instead of the American system (which was one day behind).
1287
1288# From Rives McDow (1998-10-08):
1289# Fiji will introduce DST effective 0200 local time, 1998-11-01
1290# until 0300 local time 1999-02-28. Each year the DST period will
1291# be from the first Sunday in November until the last Sunday in February.
1292
1293# From Paul Eggert (2000-01-08):
1294# IATA SSIM (1999-09) says DST ends 0100 local time. Go with McDow.
1295
1296# From the BBC World Service (1998-10-31 11:32 UTC):
1297# The Fijiian government says the main reasons for the time change is to
1298# improve productivity and reduce road accidents. But correspondents say it
1299# also hopes the move will boost Fiji's ability to compete with other pacific
1300# islands in the effort to attract tourists to witness the dawning of the new
1301# millenium.
1302
1303# http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13)
1304# reports that Fiji has discontinued DST.
1305
1306# Johnston
1307
1308# Johnston data is from usno1995.
1309
1310
1311# Kiribati
1312
1313# From Paul Eggert (1996-01-22):
1314# Today's _Wall Street Journal_ (page 1) reports that Kiribati
1315# ``declared it the same day throught the country as of Jan. 1, 1995''
1316# as part of the competition to be first into the 21st century.
1317
1318
1319# Kwajalein
1320
1321# In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
1322# I wonder what happened in Kwajalein, where there was NO Friday,
1323# 1993-08-20. Thursday night at midnight Kwajalein switched sides with
1324# respect to the International Date Line, to rejoin its fellow islands,
1325# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
1326
1327
1328# N Mariana Is, Guam
1329
1330# Howse writes (p 153) ``The Spaniards, on the other hand, reached the
1331# Philippines and the Ladrones from America,'' and implies that the Ladrones
1332# (now called the Marianas) kept American date for quite some time.
1333# For now, we assume the Ladrones switched at the same time as the Philippines;
1334# see Asia/Manila.
1335
1336# US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time,
1337# under the name "Chamorro Standard Time". There is no official abbreviation,
1338# but Congressman Robert A. Underwood, author of the bill that became law,
1339# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
1340
1341
1342# Micronesia
1343
1344# Alan Eugene Davis writes (1996-03-16),
1345# ``I am certain, having lived there for the past decade, that "Truk"
1346# (now properly known as Chuuk) ... is in the time zone GMT+10.''
1347#
1348# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
1349# on 1978-10-01; ignore this for now.
1350
1351# From Paul Eggert (1999-10-29):
1352# The Federated States of Micronesia Visitors Board writes in
1353# <a href="http://www.fsmgov.org/info/clocks.html">
1354# The Federated States of Micronesia - Visitor Information
1355# </a> (1999-01-26)
1356# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
1357# We don't know when Kosrae switched from UTC+12; assume January 1 for now.
1358
1359
1360# Midway
1361
1362# From Charles T O'Connor, KMTH DJ (1956),
1363# quoted in the KTMH section of the Radio Heritage Collection
1364# <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31):
1365# For the past two months we've been on what is known as Daylight
1366# Saving Time. This time has put us on air at 5am in the morning,
1367# your time down there in New Zealand. Starting September 2, 1956
1368# we'll again go back to Standard Time. This'll mean that we'll go to
1369# air at 6am your time.
1370#
1371# From Paul Eggert (2003-03-23):
1372# We don't know the date of that quote, but we'll guess they
1373# started DST on June 3. Possibly DST was observed other years
1374# in Midway, but we have no record of it.
1375
1376
1377# Pitcairn
1378
1379# From Rives McDow (1999-11-08):
1380# A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998
1381# with regard to Pitcairn Standard Time. The Proclamation is as follows.
1382#
1383# The local time for general purposes in the Islands shall be
1384# Co-ordinated Universal time minus 8 hours and shall be known
1385# as Pitcairn Standard Time.
1386#
1387# ... I have also seen Pitcairn listed as UTC minus 9 hours in several
1388# references, and can only assume that this was an error in interpretation
1389# somehow in light of this proclamation.
1390
1391# From Rives McDow (1999-11-09):
1392# The Proclamation regarding Pitcairn time came into effect on 27 April 1998
1393# ... at midnight.
1394
1395# From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:
1396# Betty Christian told me yesterday that their local time is the same as
1397# Pacific Standard Time. They used to be 1/2 hour different from us here in
1398# Sacramento but it was changed a couple of years ago.
1399
1400
1401# Samoa
1402
1403# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
1404# that in 1879 the King of Samoa decided to change
1405# ``the date in his kingdom from the Antipodean to the American system,
1406# ordaining -- by a masterpiece of diplomatic flattery -- that
1407# the Fourth of July should be celebrated twice in that year.''
1408
1409
1410# Tonga
1411
1412# From Paul Eggert (1996-01-22):
1413# Today's _Wall Street Journal_ (p 1) reports that ``Tonga has been plotting
1414# to sneak ahead of [New Zealanders] by introducing daylight-saving time.''
1415# Since Kiribati has moved the Date Line it's not clear what Tonga will do.
1416
1417# Don Mundell writes in the 1997-02-20 Tonga Chronicle
1418# <a href="http://www.tongatapu.net.to/tonga/homeland/timebegins.htm">
1419# How Tonga became `The Land where Time Begins'
1420# </a>:
1421
1422# Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST
1423# 12 hours and 20 minutes ahead of GMT. When New Zealand adjusted its
1424# standard time in 1940s, Tonga had the choice of subtracting from its
1425# local time to come on the same standard time as New Zealand or of
1426# advancing its time to maintain the differential of 13 degrees
1427# (approximately 50 minutes ahead of New Zealand time).
1428#
1429# Because His Majesty King Taufa'ahau Tupou IV, then Crown Prince
1430# Tungi, preferred to ensure Tonga's title as the land where time
1431# begins, the Legislative Assembly approved the latter change.
1432#
1433# But some of the older, more conservative members from the outer
1434# islands objected. "If at midnight on Dec. 31, we move ahead 40
1435# minutes, as your Royal Highness wishes, what becomes of the 40
1436# minutes we have lost?"
1437#
1438# The Crown Prince, presented an unanswerable argument: "Remember that
1439# on the World Day of Prayer, you would be the first people on Earth
1440# to say your prayers in the morning."
1441
1442# From Paul Eggert (2006-03-22):
1443# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
1444
1445# From Eric Ulevik (1999-05-03):
1446# Tonga's director of tourism, who is also secretary of the National Millenium
1447# Committee, has a plan to get Tonga back in front.
1448# He has proposed a one-off move to tropical daylight saving for Tonga from
1449# October to March, which has won approval in principle from the Tongan
1450# Government.
1451
1452# From Steffen Thorsen (1999-09-09):
1453# * Tonga will introduce DST in November
1454#
1455# I was given this link by John Letts:
peytoia90fd0682008-09-08 17:35:07 +09001456# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
duke6e45e102007-12-01 00:00:00 +00001457# http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
1458# </a>
1459#
1460# I have not been able to find exact dates for the transition in November
1461# yet. By reading this article it seems like Fiji will be 14 hours ahead
1462# of UTC as well, but as far as I know Fiji will only be 13 hours ahead
1463# (12 + 1 hour DST).
1464
1465# From Arthur David Olson (1999-09-20):
peytoia90fd0682008-09-08 17:35:07 +09001466# According to <a href="http://www.tongaonline.com/news/sept1799.html">
duke6e45e102007-12-01 00:00:00 +00001467# http://www.tongaonline.com/news/sept1799.html
1468# </a>:
1469# "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
1470# and annually thereafter from the first Saturday in October through the
1471# third Saturday of April. Under the system approved by Privy Council on
1472# Sept. 10, clocks must be turned ahead one hour on the opening day and
1473# set back an hour on the closing date."
1474# Alas, no indication of the time of day.
1475
1476# From Rives McDow (1999-10-06):
1477# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
1478# Daylight Saving ends on April 16 at 0300am which is Sunday morning.
1479
1480# From Steffen Thorsen (2000-10-31):
1481# Back in March I found a notice on the website http://www.tongaonline.com
1482# that Tonga changed back to standard time one month early, on March 19
1483# instead of the original reported date April 16. Unfortunately, the article
1484# is no longer available on the site, and I did not make a copy of the
1485# text, and I have forgotten to report it here.
1486# (Original URL was: http://www.tongaonline.com/news/march162000.htm )
1487
1488# From Rives McDow (2000-12-01):
1489# Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
1490
1491# From Sione Moala-Mafi (2001-09-20) via Rives McDow:
1492# At 2:00am on the first Sunday of November, the standard time in the Kingdom
1493# shall be moved forward by one hour to 3:00am. At 2:00am on the last Sunday
1494# of January the standard time in the Kingdom shall be moved backward by one
1495# hour to 1:00am.
1496
1497# From Pulu 'Anau (2002-11-05):
1498# The law was for 3 years, supposedly to get renewed. It wasn't.
1499
1500
1501# Wake
1502
1503# From Vernice Anderson, Personal Secretary to Philip Jessup,
1504# US Ambassador At Large (oral history interview, 1971-02-02):
1505#
1506# Saturday, the 14th [of October, 1950] -- ... The time was all the
1507# more confusing at that point, because we had crossed the
1508# International Date Line, thus getting two Sundays. Furthermore, we
1509# discovered that Wake Island had two hours of daylight saving time
1510# making calculation of time in Washington difficult if not almost
1511# impossible.
1512#
1513# http://www.trumanlibrary.org/wake/meeting.htm
1514
1515# From Paul Eggert (2003-03-23):
1516# We have no other report of DST in Wake Island, so omit this info for now.
1517
1518###############################################################################
1519
1520# The International Date Line
1521
1522# From Gwillim Law (2000-01-03):
1523#
1524# The International Date Line is not defined by any international standard,
1525# convention, or treaty. Mapmakers are free to draw it as they please.
1526# Reputable mapmakers will simply ensure that every point of land appears on
1527# the correct side of the IDL, according to the date legally observed there.
1528#
1529# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
1530# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
1531# to the east side of the Phoenix and Line Islands), I suppose that most
1532# mapmakers redrew the IDL following the boundary of Kiribati. Even that line
1533# has a rather arbitrary nature. The straight-line boundaries between Pacific
1534# island nations that are shown on many maps are based on an international
1535# convention, but are not legally binding national borders.... The date is
1536# governed by the IDL; therefore, even on the high seas, there may be some
1537# places as late as fourteen hours later than UTC. And, since the IDL is not
1538# an international standard, there are some places on the high seas where the
1539# correct date is ambiguous.
1540
1541# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
1542# Before 1920, all ships kept local apparent time on the high seas by setting
1543# their clocks at night or at the morning sight so that, given the ship's
1544# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
1545# meridian (12 o'clock = local apparent noon). During 1917, at the
1546# Anglo-French Conference on Time-keeping at Sea, it was recommended that all
1547# ships, both military and civilian, should adopt hourly standard time zones
1548# on the high seas. Whenever a ship was within the territorial waters of any
1549# nation it would use that nation's standard time. The captain was permitted
1550# to change his ship's clocks at a time of his choice following his ship's
1551# entry into another zone time--he often chose midnight. These zones were
1552# adopted by all major fleets between 1920 and 1925 but not by many
1553# independent merchant ships until World War II.
1554
1555# From Paul Eggert, using references suggested by Oscar van Vlijmen
1556# (2005-03-20):
1557#
1558# The American Practical Navigator (2002)
1559# <http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187>
1560# talks only about the 180-degree meridian with respect to ships in
1561# international waters; it ignores the international date line.