2 # This file is in the public domain, so clarified as of
3 # 2009-05-17 by Arthur David Olson.
5 # This file also includes Pacific islands.
7 # Notes are at the end of this file
9 ###############################################################################
13 # Please see the notes below for the controversy about "EST" versus "AEST" etc.
15 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
16 Rule Aus 1917 only - Jan 1 0:01 1:00 -
17 Rule Aus 1917 only - Mar 25 2:00 0 -
18 Rule Aus 1942 only - Jan 1 2:00 1:00 -
19 Rule Aus 1942 only - Mar 29 2:00 0 -
20 Rule Aus 1942 only - Sep 27 2:00 1:00 -
21 Rule Aus 1943 1944 - Mar lastSun 2:00 0 -
22 Rule 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.
27 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
29 Zone Australia/Darwin 8:43:20 - LMT 1895 Feb
34 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
35 Rule AW 1974 only - Oct lastSun 2:00s 1:00 -
36 Rule AW 1975 only - Mar Sun>=1 2:00s 0 -
37 Rule AW 1983 only - Oct lastSun 2:00s 1:00 -
38 Rule AW 1984 only - Mar Sun>=1 2:00s 0 -
39 Rule AW 1991 only - Nov 17 2:00s 1:00 -
40 Rule AW 1992 only - Mar Sun>=1 2:00s 0 -
41 Rule AW 2006 only - Dec 3 2:00s 1:00 -
42 Rule AW 2007 2009 - Mar lastSun 2:00s 0 -
43 Rule AW 2007 2008 - Oct lastSun 2:00s 1:00 -
44 Zone Australia/Perth 7:43:24 - LMT 1895 Dec
47 Zone Australia/Eucla 8:35:28 - LMT 1895 Dec
48 8:45 Aus CWST 1943 Jul
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.
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,
64 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
65 Rule AQ 1971 only - Oct lastSun 2:00s 1:00 -
66 Rule AQ 1972 only - Feb lastSun 2:00s 0 -
67 Rule AQ 1989 1991 - Oct lastSun 2:00s 1:00 -
68 Rule AQ 1990 1992 - Mar Sun>=1 2:00s 0 -
69 Rule Holiday 1992 1993 - Oct lastSun 2:00s 1:00 -
70 Rule Holiday 1993 1994 - Mar Sun>=1 2:00s 0 -
71 Zone Australia/Brisbane 10:12:08 - LMT 1895
74 Zone Australia/Lindeman 9:55:56 - LMT 1895
80 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
81 Rule AS 1971 1985 - Oct lastSun 2:00s 1:00 -
82 Rule AS 1986 only - Oct 19 2:00s 1:00 -
83 Rule AS 1987 2007 - Oct lastSun 2:00s 1:00 -
84 Rule AS 1972 only - Feb 27 2:00s 0 -
85 Rule AS 1973 1985 - Mar Sun>=1 2:00s 0 -
86 Rule AS 1986 1990 - Mar Sun>=15 2:00s 0 -
87 Rule AS 1991 only - Mar 3 2:00s 0 -
88 Rule AS 1992 only - Mar 22 2:00s 0 -
89 Rule AS 1993 only - Mar 7 2:00s 0 -
90 Rule AS 1994 only - Mar 20 2:00s 0 -
91 Rule AS 1995 2005 - Mar lastSun 2:00s 0 -
92 Rule AS 2006 only - Apr 2 2:00s 0 -
93 Rule AS 2007 only - Mar lastSun 2:00s 0 -
94 Rule AS 2008 max - Apr Sun>=1 2:00s 0 -
95 Rule AS 2008 max - Oct Sun>=1 2:00s 1:00 -
96 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
97 Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb
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.
108 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
109 Rule AT 1967 only - Oct Sun>=1 2:00s 1:00 -
110 Rule AT 1968 only - Mar lastSun 2:00s 0 -
111 Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 -
112 Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 -
113 Rule AT 1972 only - Feb lastSun 2:00s 0 -
114 Rule AT 1973 1981 - Mar Sun>=1 2:00s 0 -
115 Rule AT 1982 1983 - Mar lastSun 2:00s 0 -
116 Rule AT 1984 1986 - Mar Sun>=1 2:00s 0 -
117 Rule AT 1986 only - Oct Sun>=15 2:00s 1:00 -
118 Rule AT 1987 1990 - Mar Sun>=15 2:00s 0 -
119 Rule AT 1987 only - Oct Sun>=22 2:00s 1:00 -
120 Rule AT 1988 1990 - Oct lastSun 2:00s 1:00 -
121 Rule AT 1991 1999 - Oct Sun>=1 2:00s 1:00 -
122 Rule AT 1991 2005 - Mar lastSun 2:00s 0 -
123 Rule AT 2000 only - Aug lastSun 2:00s 1:00 -
124 Rule AT 2001 max - Oct Sun>=1 2:00s 1:00 -
125 Rule AT 2006 only - Apr Sun>=1 2:00s 0 -
126 Rule AT 2007 only - Mar lastSun 2:00s 0 -
127 Rule AT 2008 max - Apr Sun>=1 2:00s 0 -
128 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
129 Zone 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
134 Zone 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
141 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
142 Rule AV 1971 1985 - Oct lastSun 2:00s 1:00 -
143 Rule AV 1972 only - Feb lastSun 2:00s 0 -
144 Rule AV 1973 1985 - Mar Sun>=1 2:00s 0 -
145 Rule AV 1986 1990 - Mar Sun>=15 2:00s 0 -
146 Rule AV 1986 1987 - Oct Sun>=15 2:00s 1:00 -
147 Rule AV 1988 1999 - Oct lastSun 2:00s 1:00 -
148 Rule AV 1991 1994 - Mar Sun>=1 2:00s 0 -
149 Rule AV 1995 2005 - Mar lastSun 2:00s 0 -
150 Rule AV 2000 only - Aug lastSun 2:00s 1:00 -
151 Rule AV 2001 2007 - Oct lastSun 2:00s 1:00 -
152 Rule AV 2006 only - Apr Sun>=1 2:00s 0 -
153 Rule AV 2007 only - Mar lastSun 2:00s 0 -
154 Rule AV 2008 max - Apr Sun>=1 2:00s 0 -
155 Rule AV 2008 max - Oct Sun>=1 2:00s 1:00 -
156 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
157 Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb
162 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
163 Rule AN 1971 1985 - Oct lastSun 2:00s 1:00 -
164 Rule AN 1972 only - Feb 27 2:00s 0 -
165 Rule AN 1973 1981 - Mar Sun>=1 2:00s 0 -
166 Rule AN 1982 only - Apr Sun>=1 2:00s 0 -
167 Rule AN 1983 1985 - Mar Sun>=1 2:00s 0 -
168 Rule AN 1986 1989 - Mar Sun>=15 2:00s 0 -
169 Rule AN 1986 only - Oct 19 2:00s 1:00 -
170 Rule AN 1987 1999 - Oct lastSun 2:00s 1:00 -
171 Rule AN 1990 1995 - Mar Sun>=1 2:00s 0 -
172 Rule AN 1996 2005 - Mar lastSun 2:00s 0 -
173 Rule AN 2000 only - Aug lastSun 2:00s 1:00 -
174 Rule AN 2001 2007 - Oct lastSun 2:00s 1:00 -
175 Rule AN 2006 only - Apr Sun>=1 2:00s 0 -
176 Rule AN 2007 only - Mar lastSun 2:00s 0 -
177 Rule AN 2008 max - Apr Sun>=1 2:00s 0 -
178 Rule AN 2008 max - Oct Sun>=1 2:00s 1:00 -
179 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
180 Zone Australia/Sydney 10:04:52 - LMT 1895 Feb
183 Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb
184 10:00 - EST 1896 Aug 23
191 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
192 Rule LH 1981 1984 - Oct lastSun 2:00 1:00 -
193 Rule LH 1982 1985 - Mar Sun>=1 2:00 0 -
194 Rule LH 1985 only - Oct lastSun 2:00 0:30 -
195 Rule LH 1986 1989 - Mar Sun>=15 2:00 0 -
196 Rule LH 1986 only - Oct 19 2:00 0:30 -
197 Rule LH 1987 1999 - Oct lastSun 2:00 0:30 -
198 Rule LH 1990 1995 - Mar Sun>=1 2:00 0 -
199 Rule LH 1996 2005 - Mar lastSun 2:00 0 -
200 Rule LH 2000 only - Aug lastSun 2:00 0:30 -
201 Rule LH 2001 2007 - Oct lastSun 2:00 0:30 -
202 Rule LH 2006 only - Apr Sun>=1 2:00 0 -
203 Rule LH 2007 only - Mar lastSun 2:00 0 -
204 Rule LH 2008 max - Apr Sun>=1 2:00 0 -
205 Rule LH 2008 max - Oct Sun>=1 2:00 0:30 -
206 Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb
210 # Australian miscellany
212 # Ashmore Is, Cartier
213 # no indigenous inhabitants; only seasonal caretakers
217 # no indigenous inhabitants; only meteorologists
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.
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
234 # From Arthur David Olson (2013-05-23):
235 # The 1919 transition is overspecified below so pre-2013 zics
236 # will produce a binary file with an EST-type as the first 32-bit type;
237 # this is required for correct handling of times before 1916 by
238 # pre-2013 versions of localtime.
239 Zone Antarctica/Macquarie 0 - zzz 1899 Nov
240 10:00 - EST 1916 Oct 1 2:00
241 10:00 1:00 EST 1917 Feb
242 10:00 Aus EST 1919 Apr 1 0:00s
245 10:00 AT EST 2010 Apr 4 3:00
246 11:00 - MIST # Macquarie I Standard Time
249 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
250 Zone Indian/Christmas 7:02:52 - LMT 1895 Feb
251 7:00 - CXT # Christmas Island Time
254 # These islands were ruled by the Ross family from about 1830 to 1978.
255 # We don't know when standard time was introduced; for now, we guess 1900.
256 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
257 Zone Indian/Cocos 6:27:40 - LMT 1900
258 6:30 - CCT # Cocos Islands Time
263 # Milne gives 11:55:44 for Suva.
265 # From Alexander Krivenyshev (2009-11-10):
266 # According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST
267 # from November 29th 2009 to April 25th 2010.
269 # "Daylight savings to commence this month"
270 # <a href="http://www.radiofiji.com.fj/fullstory.php?id=23719">
271 # http://www.radiofiji.com.fj/fullstory.php?id=23719
274 # <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji01.html">
275 # http://www.worldtimezone.com/dst_news/dst_news_fiji01.html
278 # From Steffen Thorsen (2009-11-10):
279 # The Fiji Government has posted some more details about the approved
281 # <a href="http://www.fiji.gov.fj/publish/page_16198.shtml">
282 # http://www.fiji.gov.fj/publish/page_16198.shtml
285 # From Steffen Thorsen (2010-03-03):
286 # The Cabinet in Fiji has decided to end DST about a month early, on
287 # 2010-03-28 at 03:00.
288 # The plan is to observe DST again, from 2010-10-24 to sometime in March
289 # 2011 (last Sunday a good guess?).
292 # <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">
293 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=1096:3310-cabinet-approves-change-in-daylight-savings-dates&catid=49:cabinet-releases&Itemid=166
296 # A bit more background info here:
297 # <a href="http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html">
298 # http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
301 # From Alexander Krivenyshev (2010-10-24):
302 # According to Radio Fiji and Fiji Times online, Fiji will end DST 3
303 # weeks earlier than expected - on March 6, 2011, not March 27, 2011...
304 # Here is confirmation from Government of the Republic of the Fiji Islands,
305 # Ministry of Information (fiji.gov.fj) web site:
306 # <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155">
307 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155
310 # <a href="http://www.worldtimezone.com/dst_news/dst_news_fiji04.html">
311 # http://www.worldtimezone.com/dst_news/dst_news_fiji04.html
314 # From Steffen Thorsen (2011-10-03):
315 # Now the dates have been confirmed, and at least our start date
316 # assumption was correct (end date was one week wrong).
318 # <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">
319 # www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-saving-starts-in-fiji&catid=71:press-releases&Itemid=155
322 # Members of the public are reminded to change their time to one hour in
323 # advance at 2am to 3am on October 23, 2011 and one hour back at 3am to
324 # 2am on February 26 next year.
326 # From Ken Rylander (2011-10-24)
327 # Another change to the Fiji DST end date. In the TZ database the end date for
328 # Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22.
330 # <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">
331 # 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 # The end of daylight saving scheduled initially for the 26th of February 2012
336 # has been brought forward to the 22nd of January 2012.
337 # The commencement of daylight saving will remain unchanged and start
338 # on the 23rd of October, 2011.
340 # From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen:
341 # The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate
342 # today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st
343 # October 2012 and end at 3 am on Sunday 20th January 2013.
344 # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155
346 # From the Fijian Government Media Center (2013-08-30) via David Wheeler:
347 # Fiji will start daylight savings on Sunday 27th October, 2013 ...
348 # move clocks forward by one hour from 2am
349 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx
351 # From Steffen Thorsen (2013-01-10):
352 # Fiji will end DST on 2014-01-19 02:00:
353 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx
355 # From Paul Eggert (2014-01-10):
356 # For now, guess that Fiji springs forward the Sunday before the fourth
357 # Monday in October, and springs back the penultimate Sunday in January.
358 # This is ad hoc, but matches recent practice.
360 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
361 Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S
362 Rule Fiji 1999 2000 - Feb lastSun 3:00 0 -
363 Rule Fiji 2009 only - Nov 29 2:00 1:00 S
364 Rule Fiji 2010 only - Mar lastSun 3:00 0 -
365 Rule Fiji 2010 max - Oct Sun>=21 2:00 1:00 S
366 Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -
367 Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 -
368 Rule Fiji 2014 max - Jan Sun>=18 2:00 0 -
369 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
370 Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva
371 12:00 Fiji FJ%sT # Fiji Time
374 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
375 Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea
376 -9:00 - GAMT # Gambier Time
377 Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct
378 -9:30 - MART # Marquesas Time
379 Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete
380 -10:00 - TAHT # Tahiti Time
381 # Clipperton (near North America) is administered from French Polynesia;
385 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
386 Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31
387 9:39:00 - LMT 1901 # Agana
388 10:00 - GST 2000 Dec 23 # Guam
389 10:00 - ChST # Chamorro Standard Time
392 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
393 Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki
394 12:00 - GILT # Gilbert Is Time
395 Zone Pacific/Enderbury -11:24:20 - LMT 1901
396 -12:00 - PHOT 1979 Oct # Phoenix Is Time
399 Zone Pacific/Kiritimati -10:29:20 - LMT 1901
400 -10:40 - LINT 1979 Oct # Line Is Time
405 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
406 Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
408 9:00 - MPT 1969 Oct # N Mariana Is Time
409 10:00 - MPT 2000 Dec 23
410 10:00 - ChST # Chamorro Standard Time
413 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
414 Zone Pacific/Majuro 11:24:48 - LMT 1901
415 11:00 - MHT 1969 Oct # Marshall Islands Time
417 Zone Pacific/Kwajalein 11:09:20 - LMT 1901
419 -12:00 - KWAT 1993 Aug 20 # Kwajalein Time
423 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
424 Zone Pacific/Chuuk 10:07:08 - LMT 1901
425 10:00 - CHUT # Chuuk Time
426 Zone Pacific/Pohnpei 10:32:52 - LMT 1901 # Kolonia
427 11:00 - PONT # Pohnpei Time
428 Zone Pacific/Kosrae 10:51:56 - LMT 1901
429 11:00 - KOST 1969 Oct # Kosrae Time
434 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
435 Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe
436 11:30 - NRT 1942 Mar 15 # Nauru Time
437 9:00 - JST 1944 Aug 15
442 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
443 Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 S
444 Rule NC 1978 1979 - Feb 27 0:00 0 -
445 Rule NC 1996 only - Dec 1 2:00s 1:00 S
446 # Shanks & Pottenger say the following was at 2:00; go with IATA.
447 Rule NC 1997 only - Mar 2 2:00s 0 -
448 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
449 Zone Pacific/Noumea 11:05:48 - LMT 1912 Jan 13
453 ###############################################################################
457 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
458 Rule NZ 1927 only - Nov 6 2:00 1:00 S
459 Rule NZ 1928 only - Mar 4 2:00 0 M
460 Rule NZ 1928 1933 - Oct Sun>=8 2:00 0:30 S
461 Rule NZ 1929 1933 - Mar Sun>=15 2:00 0 M
462 Rule NZ 1934 1940 - Apr lastSun 2:00 0 M
463 Rule NZ 1934 1940 - Sep lastSun 2:00 0:30 S
464 Rule NZ 1946 only - Jan 1 0:00 0 S
465 # Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
466 # convenient single notation for the date and time of this transition
467 # so we must duplicate the Rule lines.
468 Rule NZ 1974 only - Nov Sun>=1 2:00s 1:00 D
469 Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 D
470 Rule NZ 1975 only - Feb lastSun 2:00s 0 S
471 Rule Chatham 1975 only - Feb lastSun 2:45s 0 S
472 Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D
473 Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 D
474 Rule NZ 1976 1989 - Mar Sun>=1 2:00s 0 S
475 Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 S
476 Rule NZ 1989 only - Oct Sun>=8 2:00s 1:00 D
477 Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 D
478 Rule NZ 1990 2006 - Oct Sun>=1 2:00s 1:00 D
479 Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 D
480 Rule NZ 1990 2007 - Mar Sun>=15 2:00s 0 S
481 Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 S
482 Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D
483 Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 D
484 Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S
485 Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 S
486 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
487 Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2
488 11:30 NZ NZ%sT 1946 Jan 1
490 Zone Pacific/Chatham 12:13:48 - LMT 1957 Jan 1
493 Link Pacific/Auckland Antarctica/McMurdo
496 # uninhabited; Maori and Moriori, colonial settlers, pastoralists, sealers,
497 # and scientific personnel have wintered
500 # minor whaling stations operated 1909/1914
501 # scientific station operated 1941/1995;
502 # previously whalers, sealers, pastoralists, and scientific personnel wintered
503 # was probably like Pacific/Auckland
506 # From Shanks & Pottenger:
507 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
508 Rule Cook 1978 only - Nov 12 0:00 0:30 HS
509 Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 -
510 Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 HS
511 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
512 Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua
513 -10:30 - CKT 1978 Nov 12 # Cook Is Time
516 ###############################################################################
520 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
521 Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi
522 -11:20 - NUT 1951 # Niue Time
523 -11:30 - NUT 1978 Oct 1
527 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
528 Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston
529 11:12 - NMT 1951 # Norfolk Mean Time
530 11:30 - NFT # Norfolk Time
533 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
534 Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror
535 9:00 - PWT # Palau Time
538 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
539 Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
540 9:48:32 - PMMT 1895 # Port Moresby Mean Time
541 10:00 - PGT # Papua New Guinea Time
544 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
545 Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown
546 -8:30 - PNT 1998 Apr 27 00:00
547 -8:00 - PST # Pitcairn Standard Time
550 Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
552 -11:30 - SAMT 1950 # Samoa Time
553 -11:00 - NST 1967 Apr # N=Nome
554 -11:00 - BST 1983 Nov 30 # B=Bering
555 -11:00 - SST # S=Samoa
559 # From Steffen Thorsen (2009-10-16):
560 # We have been in contact with the government of Samoa again, and received
561 # the following info:
563 # "Cabinet has now approved Daylight Saving to be effected next year
564 # commencing from the last Sunday of September 2010 and conclude first
565 # Sunday of April 2011."
568 # <a href="http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html">
569 # http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
572 # Samoa's Daylight Saving Time Act 2009 is available here, but does not
574 # <a href="http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf">
575 # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
578 # From Laupue Raymond Hughes (2010-10-07):
580 # <a href="http://www.mcil.gov.ws">
581 # http://www.mcil.gov.ws
583 # the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday
584 # September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight
585 # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks
586 # backwards from 1:00am to 12:00am"
588 # From Laupue Raymond Hughes (2011-03-07):
589 # I believe this will be posted shortly on the website
590 # <a href="http://www.mcil.gov.ws">
594 # PUBLIC NOTICE ON DAYLIGHT SAVING TIME
596 # Pursuant to the Daylight Saving Act 2009 and Cabinets decision,
597 # businesses and the general public are hereby advised that daylight
598 # saving time is on the first Saturday of April 2011 (02/04/11).
600 # The public is therefore advised that when the standard time strikes
601 # the hour of four oclock (4.00am or 0400 Hours) on the 2nd April 2011,
602 # then all instruments used to measure standard time are to be
603 # adjusted/changed to three oclock (3:00am or 0300Hrs).
605 # Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE,
606 # INDUSTRY AND LABOUR 28th February 2011
608 # From David Zuelke (2011-05-09):
609 # Subject: Samoa to move timezone from east to west of international date line
611 # <a href="http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963">
612 # http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963
615 # From Mark Sim-Smith (2011-08-17):
616 # I have been in contact with Leilani Tuala Warren from the Samoa Law
617 # Reform Commission, and she has sent me a copy of the Bill that she
618 # confirmed has been passed...Most of the sections are about maps rather
619 # than the time zone change, but I'll paste the relevant bits below. But
620 # the essence is that at midnight 29 Dec (UTC-11 I suppose), Samoa
621 # changes from UTC-11 to UTC+13:
623 # International Date Line Bill 2011
625 # AN ACT to provide for the change to standard time in Samoa and to make
626 # consequential amendments to the position of the International Date
627 # Line, and for related purposes.
629 # BE IT ENACTED by the Legislative Assembly of Samoa in Parliament
630 # assembled as follows:
632 # 1. Short title and commencement-(1) This Act may be cited as the
633 # International Date Line Act 2011. (2) Except for section 5(3) this Act
634 # commences at 12 o'clock midnight, on Thursday 29th December 2011. (3)
635 # Section 5(3) commences on the date of assent by the Head of State.
639 # 3. Interpretation - [snip] "Samoa standard time" in this Act and any
640 # other statute of Samoa which refers to 'Samoa standard time' means the
641 # time 13 hours in advance of Co-ordinated Universal Time.
643 # 4. Samoa standard time - (1) Upon the commencement of this Act, Samoa
644 # standard time shall be set at 13 hours in advance of Co-ordinated
645 # Universal Time for the whole of Samoa. (2) All references to Samoa's
646 # time zone and to Samoa standard time in Samoa in all legislation and
647 # instruments after the commencement of this Act shall be references to
648 # Samoa standard time as provided for in this Act. (3) Nothing in this
649 # Act affects the provisions of the Daylight Saving Act 2009, except that
650 # it defines Samoa standard time....
652 # From Laupue Raymond Hughes (2011-09-02):
653 # <a href="http://www.mcil.gov.ws/mcil_publications.html">
654 # http://www.mcil.gov.ws/mcil_publications.html
657 # here is the official website publication for Samoa DST and dateline change
660 # Year End Time Start Time
661 # 2011 - - - - - - 24 September 3:00am to 4:00am
662 # 2012 01 April 4:00am to 3:00am - - - - - -
664 # Dateline Change skip Friday 30th Dec 2011
665 # Thursday 29th December 2011 23:59:59 Hours
666 # Saturday 31st December 2011 00:00:00 Hours
668 # Clarification by Tim Parenti (2012-01-03):
669 # Although Samoa has used Daylight Saving Time in the 2010-2011 and 2011-2012
670 # seasons, there is not yet any indication that this trend will continue on
671 # a regular basis. For now, we have explicitly listed the transitions below.
673 # From Nicky (2012-09-10):
674 # Daylight Saving Time commences on Sunday 30th September 2012 and
675 # ends on Sunday 7th of April 2013.
677 # Please find link below for more information.
678 # http://www.mcil.gov.ws/mcil_publications.html
680 # That publication also includes dates for Summer of 2013/4 as well
681 # which give the impression of a pattern in selecting dates for the
682 # future, so for now, we will guess this will continue.
685 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
686 Rule WS 2012 max - Sep lastSun 3:00 1 D
687 Rule WS 2012 max - Apr Sun>=1 4:00 0 -
688 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
689 Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5
691 -11:30 - SAMT 1950 # Samoa Time
692 -11:00 - WST 2010 Sep 26
693 -11:00 1:00 WSDT 2011 Apr 2 4:00
694 -11:00 - WST 2011 Sep 24 3:00
695 -11:00 1:00 WSDT 2011 Dec 30
696 13:00 1:00 WSDT 2012 Apr Sun>=1 4:00
700 # excludes Bougainville, for which see Papua New Guinea
701 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
702 Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara
703 11:00 - SBT # Solomon Is Time
707 # From Gwillim Law (2011-12-29)
708 # A correspondent informed me that Tokelau, like Samoa, will be skipping
709 # December 31 this year ...
711 # From Steffen Thorsen (2012-07-25)
712 # ... we double checked by calling hotels and offices based in Tokelau asking
713 # about the time there, and they all told a time that agrees with UTC+13....
714 # Shanks says UTC-10 from 1901 [but] ... there is a good chance the change
715 # actually was to UTC-11 back then.
717 # From Paul Eggert (2012-07-25)
718 # A Google Books snippet of Appendix to the Journals of the House of
719 # Representatives of New Zealand, Session 1948,
720 # <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
721 # was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger
722 # are off by an hour starting in 1901.
724 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
725 Zone Pacific/Fakaofo -11:24:56 - LMT 1901
726 -11:00 - TKT 2011 Dec 30 # Tokelau Time
730 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
731 Rule Tonga 1999 only - Oct 7 2:00s 1:00 S
732 Rule Tonga 2000 only - Mar 19 2:00s 0 -
733 Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S
734 Rule Tonga 2001 2002 - Jan lastSun 2:00 0 -
735 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
736 Zone Pacific/Tongatapu 12:19:20 - LMT 1901
737 12:20 - TOT 1941 # Tonga Time
742 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
743 Zone Pacific/Funafuti 11:56:52 - LMT 1901
744 12:00 - TVT # Tuvalu Time
747 # US minor outlying islands
750 # Howland was mined for guano by American companies 1857-1878 and British
751 # 1886-1891; Baker was similar but exact dates are not known.
752 # Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
753 # uninhabited thereafter.
754 # Howland observed Hawaii Standard Time (UT-10:30) in 1937;
755 # see page 206 of Elgen M. Long and Marie K. Long,
756 # Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
757 # So most likely Howland and Baker observed Hawaii Time from 1935
758 # until they were abandoned after the war.
761 # Mined for guano by American companies 1857-1879 and British 1883?-1891?.
762 # Inhabited by civilians 1935-1942; IGY scientific base 1957-1958;
763 # uninhabited thereafter.
764 # no information; was probably like Pacific/Kiritimati
768 # From Paul Eggert (2014-03-11):
769 # Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind.
770 # Details are uncertain. We have no data for Johnston after 1970, so
771 # treat it like Hawaii for now.
773 # In his memoirs of June 6th to October 4, 1945
774 # <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
775 # "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM
776 # Johnston time, 1:30 AM Kwajalein time." This was in June 1945, and
777 # confirms that Johnston kept the same time as Honolulu in summer 1945.
779 # From Lyle McElhaney (2014-03-11):
780 # [W]hen JI was being used for that [atomic bomb] testing, the time being used
781 # was not Hawaiian time but rather the same time being used on the ships,
782 # which had a GMT offset of -11 hours. This apparently applied to at least the
783 # time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last
784 # Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin,
785 # "The United States High-Altitude Test Experience: A Review Emphasizing the
786 # Impact on the Environment", Los Alamos LA-6405, Oct 1976
787 # <http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf>.
788 # See the table on page 4 where he lists GMT and local times for the tests; a
789 # footnote for the JI tests reads that local time is "JI time = Hawaii Time
792 # See 'northamerica' for Pacific/Johnston.
799 # From Mark Brader (2005-01-23):
800 # [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
801 # published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
802 # reproduced a Pan American Airways timeables from 1936, for their weekly
803 # "Orient Express" flights between San Francisco and Manila, and connecting
804 # flights to Chicago and the US East Coast. As it uses some time zone
805 # designations that I've never seen before:....
806 # Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun.
807 # " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A "
809 Zone Pacific/Midway -11:49:28 - LMT 1901
810 -11:00 - NST 1956 Jun 3
811 -11:00 1:00 NDT 1956 Sep 2
812 -11:00 - NST 1967 Apr # N=Nome
813 -11:00 - BST 1983 Nov 30 # B=Bering
814 -11:00 - SST # S=Samoa
817 # uninhabited since World War II; was probably like Pacific/Kiritimati
820 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
821 Zone Pacific/Wake 11:06:28 - LMT 1901
822 12:00 - WAKT # Wake Time
826 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
827 Rule Vanuatu 1983 only - Sep 25 0:00 1:00 S
828 Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 -
829 Rule Vanuatu 1984 only - Oct 23 0:00 1:00 S
830 Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 S
831 Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 -
832 Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 S
833 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
834 Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
835 11:00 Vanuatu VU%sT # Vanuatu Time
838 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
839 Zone Pacific/Wallis 12:15:20 - LMT 1901
840 12:00 - WFT # Wallis & Futuna Time
842 ###############################################################################
846 # This data is by no means authoritative; if you think you know better,
847 # go ahead and edit the file (and please send any changes to
848 # tz@iana.org for general use in the future).
850 # From Paul Eggert (2013-02-21):
851 # A good source for time zone historical data outside the U.S. is
852 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
853 # San Diego: ACS Publications, Inc. (2003).
855 # Gwillim Law writes that a good source
856 # for recent time zone data is the International Air Transport
857 # Association's Standard Schedules Information Manual (IATA SSIM),
858 # published semiannually. Law sent in several helpful summaries
859 # of the IATA's data after 1990.
861 # Except where otherwise noted, Shanks & Pottenger is the source for
862 # entries through 1990, and IATA SSIM is the source for entries afterwards.
864 # Another source occasionally used is Edward W. Whitman, World Time Differences,
865 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
866 # I found in the UCLA library.
868 # For data circa 1899, a common source is:
869 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
870 # <http://www.jstor.org/stable/1774359>.
872 # A reliable and entertaining source about time zones is
873 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
875 # I invented the abbreviations marked `*' in the following table;
876 # the rest are from earlier versions of this file, or from other sources.
877 # Corrections are welcome!
879 # LMT Local Mean Time
880 # 8:00 WST WST Western Australia
881 # 8:45 CWST CWST Central Western Australia*
883 # 9:30 CST CST Central Australia
884 # 10:00 EST EST Eastern Australia
885 # 10:00 ChST Chamorro
886 # 10:30 LHST LHST Lord Howe*
887 # 11:30 NZMT NZST New Zealand through 1945
888 # 12:00 NZST NZDT New Zealand 1946-present
889 # 12:45 CHAST CHADT Chatham*
892 # - 8:00 PST Pitcairn*
894 # See the `northamerica' file for Hawaii.
895 # See the `southamerica' file for Easter I and the Galapagos Is.
897 ###############################################################################
901 # From Paul Eggert (2005-12-08):
902 # <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">
903 # Implementation Dates of Daylight Saving Time within Australia
904 # </a> summarizes daylight saving issues in Australia.
906 # From Arthur David Olson (2005-12-12):
907 # <a href="http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving">
908 # Lawlink NSW:Daylight Saving in New South Wales
909 # </a> covers New South Wales in particular.
911 # From John Mackin (1991-03-06):
912 # We in Australia have _never_ referred to DST as `daylight' time.
913 # It is called `summer' time. Now by a happy coincidence, `summer'
914 # and `standard' happen to start with the same letter; hence, the
915 # abbreviation does _not_ change...
916 # The legislation does not actually define abbreviations, at least
917 # in this State, but the abbreviation is just commonly taken to be the
918 # initials of the phrase, and the legislation here uniformly uses
919 # the phrase `summer time' and does not use the phrase `daylight
921 # Announcers on the Commonwealth radio network, the ABC (for Australian
922 # Broadcasting Commission), use the phrases `Eastern Standard Time'
923 # or `Eastern Summer Time'. (Note, though, that as I say in the
924 # current australasia file, there is really no such thing.) Announcers
925 # on its overseas service, Radio Australia, use the same phrases
926 # prefixed by the word `Australian' when referring to local times;
927 # time announcements on that service, naturally enough, are made in UTC.
929 # From Arthur David Olson (1992-03-08):
930 # Given the above, what's chosen for year-round use is:
931 # CST for any place operating at a GMTOFF of 9:30
932 # WST for any place operating at a GMTOFF of 8:00
933 # EST for any place operating at a GMTOFF of 10:00
935 # From Chuck Soper (2006-06-01):
936 # I recently found this Australian government web page on time zones:
937 # <http://www.australia.gov.au/about-australia-13time>
938 # And this government web page lists time zone names and abbreviations:
939 # <http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml>
941 # From Paul Eggert (2001-04-05), summarizing a long discussion about "EST"
942 # versus "AEST" etc.:
944 # I see the following points of dispute:
946 # * How important are unique time zone abbreviations?
948 # Here I tend to agree with the point (most recently made by Chris
949 # Newman) that unique abbreviations should not be essential for proper
950 # operation of software. We have other instances of ambiguity
951 # (e.g. "IST" denoting both "Israel Standard Time" and "Indian
952 # Standard Time"), and they are not likely to go away any time soon.
953 # In the old days, some software mistakenly relied on unique
954 # abbreviations, but this is becoming less true with time, and I don't
955 # think it's that important to cater to such software these days.
957 # On the other hand, there is another motivation for unambiguous
958 # abbreviations: it cuts down on human confusion. This is
959 # particularly true for Australia, where "EST" can mean one thing for
960 # time T and a different thing for time T plus 1 second.
962 # * Does the relevant legislation indicate which abbreviations should be used?
964 # Here I tend to think that things are a mess, just as they are in
965 # many other countries. We Americans are currently disagreeing about
966 # which abbreviation to use for the newly legislated Chamorro Standard
969 # Personally, I would prefer to use common practice; I would like to
970 # refer to legislation only for examples of common practice, or as a
973 # * Do Australians more often use "Eastern Daylight Time" or "Eastern
974 # Summer Time"? Do they typically prefix the time zone names with
975 # the word "Australian"?
977 # My own impression is that both "Daylight Time" and "Summer Time" are
978 # common and are widely understood, but that "Summer Time" is more
979 # popular; and that the leading "A" is also common but is omitted more
980 # often than not. I just used AltaVista advanced search and got the
981 # following count of page hits:
983 # 1,103 "Eastern Summer Time" AND domain:au
984 # 971 "Australian Eastern Summer Time" AND domain:au
985 # 613 "Eastern Daylight Time" AND domain:au
986 # 127 "Australian Eastern Daylight Time" AND domain:au
988 # Here "Summer" seems quite a bit more popular than "Daylight",
989 # particularly when we know the time zone is Australian and not US,
990 # say. The "Australian" prefix seems to be popular for Eastern Summer
991 # Time, but unpopular for Eastern Daylight Time.
993 # For abbreviations, tools like AltaVista are less useful because of
994 # ambiguity. Many hits are not really time zones, unfortunately, and
995 # many hits denote US time zones and not Australian ones. But here
996 # are the hit counts anyway:
998 # 161,304 "EST" and domain:au
999 # 25,156 "EDT" and domain:au
1000 # 18,263 "AEST" and domain:au
1001 # 10,416 "AEDT" and domain:au
1003 # 14,538 "CST" and domain:au
1004 # 5,728 "CDT" and domain:au
1005 # 176 "ACST" and domain:au
1006 # 29 "ACDT" and domain:au
1008 # 7,539 "WST" and domain:au
1009 # 68 "AWST" and domain:au
1011 # This data suggest that Australians tend to omit the "A" prefix in
1012 # practice. The situation for "ST" versus "DT" is less clear, given
1013 # the ambiguities involved.
1015 # * How do Australians feel about the abbreviations in the tz database?
1017 # If you just count Australians on this list, I count 2 in favor and 3
1018 # against. One of the "against" votes (David Keegel) counseled delay,
1019 # saying that both AEST/AEDT and EST/EST are widely used and
1020 # understood in Australia.
1022 # From Paul Eggert (1995-12-19):
1023 # Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1024 # Mark Prior writes that his newspaper
1025 # reports that NSW's fall 1995 change will occur at 2:00,
1026 # but Robert Elz says it's been 3:00 in Victoria since 1970
1027 # and perhaps the newspaper's `2:00' is referring to standard time.
1028 # For now we'll continue to assume 2:00s for changes since 1960.
1030 # From Eric Ulevik (1998-01-05):
1032 # Here are some URLs to Australian time legislation. These URLs are stable,
1033 # and should probably be included in the data file. There are probably more
1034 # relevant entries in this database.
1036 # NSW (including LHI and Broken Hill):
1037 # <a href="http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html">
1038 # Standard Time Act 1987 (updated 1995-04-04)
1041 # <a href="http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html">
1042 # Standard Time and Summer Time Act 1972
1045 # <a href="http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html">
1046 # Standard Time Act, 1898
1049 # From David Grosz (2005-06-13):
1050 # It was announced last week that Daylight Saving would be extended by
1051 # one week next year to allow for the 2006 Commonwealth Games.
1052 # Daylight Saving is now to end for next year only on the first Sunday
1053 # in April instead of the last Sunday in March.
1055 # From Gwillim Law (2005-06-14):
1056 # I did some Googling and found that all of those states (and territory) plan
1057 # to extend DST together in 2006.
1058 # ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt
1059 # New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html
1060 # South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html
1061 # Tasmania: http://www.media.tas.gov.au/release.php?id=14772
1062 # Victoria: I wasn't able to find anything separate, but the other articles
1064 # But not Queensland
1065 # http://www.news.com.au/story/0,10117,15564030-1248,00.html.
1067 # Northern Territory
1069 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1070 # # The NORTHERN TERRITORY.. [ Courtesy N.T. Dept of the Chief Minister ]
1072 # # N.T. have never utilised any DST due to sub-tropical/tropical location.
1074 # Zone Australia/North 9:30 - CST
1076 # From Bradley White (1991-03-04):
1077 # A recent excerpt from an Australian newspaper...
1078 # the Northern Territory do[es] not have daylight saving.
1082 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1083 # # The state of WESTERN AUSTRALIA.. [ Courtesy W.A. dept Premier+Cabinet ]
1085 # # W.A. suffers from a great deal of public and political opposition to
1086 # # DST in principle. A bill is brought before parliament in most years, but
1087 # # usually defeated either in the upper house, or in party caucus
1088 # # before reaching parliament.
1090 # Zone Australia/West 8:00 AW %sST
1092 # Rule AW 1974 only - Oct lastSun 2:00 1:00 D
1093 # Rule AW 1975 only - Mar Sun>=1 3:00 0 W
1094 # Rule AW 1983 only - Oct lastSun 2:00 1:00 D
1095 # Rule AW 1984 only - Mar Sun>=1 3:00 0 W
1097 # From Bradley White (1991-03-04):
1098 # A recent excerpt from an Australian newspaper...
1099 # Western Australia...do[es] not have daylight saving.
1101 # From John D. Newman via Bradley White (1991-11-02):
1102 # Western Australia is still on "winter time". Some DH in Sydney
1103 # rang me at home a few days ago at 6.00am. (He had just arrived at
1105 # W.A. is switching to Summer Time on Nov 17th just to confuse
1108 # From Arthur David Olson (1992-03-08):
1109 # The 1992 ending date used in the rules is a best guess;
1110 # it matches what was used in the past.
1112 # <a href="http://www.bom.gov.au/faq/faqgen.htm">
1113 # The Australian Bureau of Meteorology FAQ
1114 # </a> (1999-09-27) writes that Giles Meteorological Station uses
1115 # South Australian time even though it's located in Western Australia.
1118 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1119 # # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ]
1122 # Zone Australia/Queensland 10:00 AQ %sST
1124 # Rule AQ 1971 only - Oct lastSun 2:00 1:00 D
1125 # Rule AQ 1972 only - Feb lastSun 3:00 0 E
1126 # Rule AQ 1989 max - Oct lastSun 2:00 1:00 D
1127 # Rule AQ 1990 max - Mar Sun>=1 3:00 0 E
1129 # From Bradley White (1989-12-24):
1130 # "Australia/Queensland" now observes daylight time (i.e. from
1133 # From Bradley White (1991-03-04):
1134 # A recent excerpt from an Australian newspaper...
1135 # ...Queensland...[has] agreed to end daylight saving
1136 # at 3am tomorrow (March 3)...
1138 # From John Mackin (1991-03-06):
1139 # I can certainly confirm for my part that Daylight Saving in NSW did in fact
1140 # end on Sunday, 3 March. I don't know at what hour, though. (It surprised
1143 # From Bradley White (1992-03-08):
1144 # ...there was recently a referendum in Queensland which resulted
1145 # in the experimental daylight saving system being abandoned. So, ...
1147 # Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D
1148 # Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S
1151 # From Arthur David Olson (1992-03-08):
1152 # The chosen rules the union of the 1971/1972 change and the 1989-1992 changes.
1154 # From Christopher Hunt (2006-11-21), after an advance warning
1155 # from Jesper Norgaard Welen (2006-11-01):
1156 # WA are trialing DST for three years.
1157 # <http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf>
1159 # From Rives McDow (2002-04-09):
1160 # The most interesting region I have found consists of three towns on the
1161 # southern coast.... South Australia observes daylight saving time; Western
1162 # Australia does not. The two states are one and a half hours apart. The
1163 # residents decided to forget about this nonsense of changing the clock so
1164 # much and set the local time 20 hours and 45 minutes from the
1165 # international date line, or right in the middle of the time of South
1166 # Australia and Western Australia....
1168 # From Paul Eggert (2002-04-09):
1169 # This is confirmed by the section entitled
1170 # "What's the deal with time zones???" in
1171 # <http://www.earthsci.unimelb.edu.au/~awatkins/null.html>.
1173 # From Alex Livingston (2006-12-07):
1174 # ... it was just on four years ago that I drove along the Eyre Highway,
1175 # which passes through eastern Western Australia close to the southern
1176 # coast of the continent.
1178 # I paid particular attention to the time kept there. There can be no
1179 # dispute that UTC+08:45 was considered "the time" from the border
1180 # village just inside the border with South Australia to as far west
1181 # as just east of Caiguna. There can also be no dispute that Eucla is
1182 # the largest population centre in this zone....
1184 # Now that Western Australia is observing daylight saving, the
1185 # question arose whether this part of the state would follow suit. I
1186 # just called the border village and confirmed that indeed they have,
1187 # meaning that they are now observing UTC+09:45.
1190 # I personally doubt that either experimentation with daylight saving
1191 # in WA or its introduction in SA had anything to do with the genesis
1192 # of this time zone. My hunch is that it's been around since well
1193 # before 1975. I remember seeing it noted on road maps decades ago.
1195 # From Paul Eggert (2006-12-15):
1196 # For lack of better info, assume the tradition dates back to the
1197 # introduction of standard time in 1895.
1200 # southeast Australia
1202 # From Paul Eggert (2007-07-23):
1203 # Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT
1204 # end DST the first Sunday in April and start DST the first Sunday in October.
1205 # http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html
1210 # From Bradley White (1991-03-04):
1211 # A recent excerpt from an Australian newspaper...
1212 # ...South Australia...[has] agreed to end daylight saving
1213 # at 3am tomorrow (March 3)...
1215 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1216 # # The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ]
1219 # Zone Australia/South 9:30 AS %sST
1221 # Rule AS 1971 max - Oct lastSun 2:00 1:00 D
1222 # Rule AS 1972 1985 - Mar Sun>=1 3:00 0 C
1223 # Rule AS 1986 1990 - Mar Sun>=15 3:00 0 C
1224 # Rule AS 1991 max - Mar Sun>=1 3:00 0 C
1226 # From Bradley White (1992-03-11):
1227 # Recent correspondence with a friend in Adelaide
1228 # contained the following exchange: "Due to the Adelaide Festival,
1229 # South Australia delays setting back our clocks for a few weeks."
1231 # From Robert Elz (1992-03-13):
1232 # I heard that apparently (or at least, it appears that)
1233 # South Aus will have an extra 3 weeks daylight saving every even
1234 # numbered year (from 1990). That's when the Adelaide Festival
1237 # From Robert Elz (1992-03-16, 00:57:07 +1000):
1238 # DST didn't end in Adelaide today (yesterday)....
1239 # But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever...
1240 # (it's just as likely to be "the Sunday we pick for this year"...).
1242 # From Bradley White (1994-04-11):
1243 # If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March,
1244 # 1994 was at +0930 as John Connolly's customer seems to assert, then I can
1245 # only conclude that the actual rule is more complicated....
1247 # From John Warburton (1994-10-07):
1248 # The new Daylight Savings dates for South Australia ...
1249 # was gazetted in the Government Hansard on Sep 26 1994....
1250 # start on last Sunday in October and end in last sunday in March.
1252 # From Paul Eggert (2007-07-23):
1253 # See "southeast Australia" above for 2008 and later.
1257 # The rules for 1967 through 1991 were reported by George Shepherd
1258 # via Simon Woodhead via Robert Elz (1991-03-06):
1259 # # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
1262 # From Bill Hart via Guy Harris (1991-10-10):
1263 # Oh yes, the new daylight savings rules are uniquely tasmanian, we have
1264 # 6 weeks a year now when we are out of sync with the rest of Australia
1265 # (but nothing new about that).
1267 # From Alex Livingston (1999-10-04):
1268 # I heard on the ABC (Australian Broadcasting Corporation) radio news on the
1269 # (long) weekend that Tasmania, which usually goes its own way in this regard,
1270 # has decided to join with most of NSW, the ACT, and most of Victoria
1271 # (Australia) and start daylight saving on the last Sunday in August in 2000
1272 # instead of the first Sunday in October.
1274 # Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules:
1275 # http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300
1277 # From Paul Eggert (2007-07-23):
1278 # See "southeast Australia" above for 2008 and later.
1282 # The rules for 1971 through 1991 were reported by George Shepherd
1283 # via Simon Woodhead via Robert Elz (1991-03-06):
1284 # # The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
1287 # From Scott Harrington (2001-08-29):
1288 # On KQED's "City Arts and Lectures" program last night I heard an
1289 # interesting story about daylight savings time. Dr. John Heilbron was
1290 # discussing his book "The Sun in the Church: Cathedrals as Solar
1291 # Observatories"[1], and in particular the Shrine of Remembrance[2] located
1292 # in Melbourne, Australia.
1294 # Apparently the shrine's main purpose is a beam of sunlight which
1295 # illuminates a special spot on the floor at the 11th hour of the 11th day
1296 # of the 11th month (Remembrance Day) every year in memory of Australia's
1297 # fallen WWI soldiers. And if you go there on Nov. 11, at 11am local time,
1298 # you will indeed see the sunbeam illuminate the special spot at the
1301 # However, that is only because of some special mirror contraption that had
1302 # to be employed, since due to daylight savings time, the true solar time of
1303 # the remembrance moment occurs one hour later (or earlier?). Perhaps
1304 # someone with more information on this jury-rig can tell us more.
1306 # [1] http://www.hup.harvard.edu/catalog/HEISUN.html
1307 # [2] http://www.shrine.org.au
1309 # From Paul Eggert (2007-07-23):
1310 # See "southeast Australia" above for 2008 and later.
1314 # From Arthur David Olson:
1315 # New South Wales and subjurisdictions have their own ideas of a fun time.
1316 # Based on law library research by John Mackin,
1318 # In Australia, time is not legislated federally, but rather by the
1319 # individual states. Thus, while such terms as ``Eastern Standard Time''
1320 # [I mean, of course, Australian EST, not any other kind] are in common
1321 # use, _they have NO REAL MEANING_, as they are not defined in the
1322 # legislation. This is very important to understand.
1323 # I have researched New South Wales time only...
1325 # From Eric Ulevik (1999-05-26):
1326 # DST will start in NSW on the last Sunday of August, rather than the usual
1327 # October in 2000. [See: Matthew Moore,
1328 # <a href="http://www.smh.com.au/news/9905/26/pageone/pageone4.html">
1329 # Two months more daylight saving
1331 # Sydney Morning Herald (1999-05-26).]
1333 # From Paul Eggert (1999-09-27):
1334 # See the following official NSW source:
1335 # <a href="http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ">
1336 # Daylight Saving in New South Wales.
1339 # Narrabri Shire (NSW) council has announced it will ignore the extension of
1340 # daylight saving next year. See:
1341 # <a href="http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm">
1342 # Narrabri Council to ignore daylight saving
1343 # </a> (1999-07-22). For now, we'll wait to see if this really happens.
1345 # Victoria will following NSW. See:
1346 # <a href="http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm">
1347 # Vic to extend daylight saving
1348 # </a> (1999-07-28).
1350 # However, South Australia rejected the DST request. See:
1351 # <a href="http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm">
1352 # South Australia rejects Olympics daylight savings request
1353 # </a> (1999-07-19).
1355 # Queensland also will not observe DST for the Olympics. See:
1356 # <a href="http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm">
1357 # Qld says no to daylight savings for Olympics
1358 # </a> (1999-06-01), which quotes Queensland Premier Peter Beattie as saying
1359 # ``Look you've got to remember in my family when this came up last time
1360 # I voted for it, my wife voted against it and she said to me it's all very
1361 # well for you, you don't have to worry about getting the children out of
1362 # bed, getting them to school, getting them to sleep at night.
1363 # I've been through all this argument domestically...my wife rules.''
1365 # Broken Hill will stick with South Australian time in 2000. See:
1366 # <a href="http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm">
1367 # Broken Hill to be behind the times
1368 # </a> (1999-07-21).
1370 # IATA SSIM (1998-09) says that the spring 2000 change for Australian
1371 # Capital Territory, New South Wales except Lord Howe Island and Broken
1372 # Hill, and Victoria will be August 27, presumably due to the Sydney Olympics.
1374 # From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29:
1375 # The Queensland Premier Peter Beattie is encouraging northern NSW
1376 # towns to use Queensland time.
1378 # From Paul Eggert (2007-07-23):
1379 # See "southeast Australia" above for 2008 and later.
1383 # From John Mackin (1989-01-04):
1384 # `Broken Hill' means the County of Yancowinna.
1386 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1387 # # YANCOWINNA.. [ Confirmation courtesy of Broken Hill Postmaster ]
1390 # # Yancowinna uses Central Standard Time, despite [its] location on the
1391 # # New South Wales side of the S.A. border. Most business and social dealings
1392 # # are with CST zones, therefore CST is legislated by local government
1393 # # although the switch to Summer Time occurs in line with N.S.W. There have
1394 # # been years when this did not apply, but the historical data is not
1395 # # presently available.
1396 # Zone Australia/Yancowinna 9:30 AY %sST
1398 # Rule AY 1971 1985 - Oct lastSun 2:00 1:00 D
1399 # Rule AY 1972 only - Feb lastSun 3:00 0 C
1400 # [followed by other Rules]
1404 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1405 # LHI... [ Courtesy of Pauline Van Winsen ]
1407 # Lord Howe Island is located off the New South Wales coast, and is half an
1408 # hour ahead of NSW time.
1410 # From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
1411 # Lord Howe Island summer time in 2000/2001 will commence on the same
1412 # date as the rest of NSW (i.e. 2000-08-27). For your information the
1413 # Lord Howe Island Board (controlling authority for the Island) is
1414 # seeking the community's views on various options for summer time
1415 # arrangements on the Island, e.g. advance clocks by 1 full hour
1416 # instead of only 30 minutes. [Dependent] on the wishes of residents
1417 # the Board may approach the NSW government to change the existing
1418 # arrangements. The starting date for summer time on the Island will
1419 # however always coincide with the rest of NSW.
1421 # From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25):
1422 # Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards
1423 # clocks by 30 minutes when DST finishes. Since DST was most recently
1424 # introduced in NSW, the "changeover" time on the Island has been 02:00 as
1425 # shown on clocks on LHI. I guess this means that for 30 minutes at the start
1426 # of DST, LHI is actually 1 hour ahead of the rest of NSW.
1428 # From Paul Eggert (2006-03-22):
1429 # For Lord Howe dates we use Shanks & Pottenger through 1989, and
1430 # Lonergan thereafter. For times we use Lonergan.
1432 # From Paul Eggert (2007-07-23):
1433 # See "southeast Australia" above for 2008 and later.
1435 # From Steffen Thorsen (2009-04-28):
1436 # According to the official press release, South Australia's extended daylight
1437 # saving period will continue with the same rules as used during the 2008-2009
1438 # summer (southern hemisphere).
1441 # <a href="http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf">
1442 # http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf
1444 # The extended daylight saving period that South Australia has been trialling
1445 # for over the last year is now set to be ongoing.
1446 # Daylight saving will continue to start on the first Sunday in October each
1447 # year and finish on the first Sunday in April the following year.
1448 # Industrial Relations Minister, Paul Caica, says this provides South Australia
1449 # with a consistent half hour time difference with NSW, Victoria, Tasmania and
1450 # the ACT for all 52 weeks of the year...
1452 # We have a wrap-up here:
1453 # <a href="http://www.timeanddate.com/news/time/south-australia-extends-dst.html">
1454 # http://www.timeanddate.com/news/time/south-australia-extends-dst.html
1456 ###############################################################################
1460 # From Mark Davies (1990-10-03):
1461 # the 1989/90 year was a trial of an extended "daylight saving" period.
1462 # This trial was deemed successful and the extended period adopted for
1463 # subsequent years (with the addition of a further week at the start).
1464 # source -- phone call to Ministry of Internal Affairs Head Office.
1466 # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06):
1467 # # The Country of New Zealand (Australia's east island -) Gee they hate that!
1468 # # or is Australia the west island of N.Z.
1469 # # [ courtesy of Geoff Tribble.. Auckland N.Z. ]
1472 # Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D
1473 # Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D
1474 # Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S
1475 # Rule NZ 1990 max - Mar lastSun 3:00 0 S
1477 # Zone NZ 12:00 NZ NZ%sT # New Zealand
1478 # Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island
1480 # From Arthur David Olson (1992-03-08):
1481 # The chosen rules use the Davies October 8 values for the start of DST in 1989
1482 # rather than the October 1 value.
1484 # From Paul Eggert (1995-12-19);
1485 # Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
1486 # Robert Uzgalis writes that the New Zealand Daylight
1487 # Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
1488 # time on both the first Sunday in October and the third Sunday in March.
1489 # As with Australia, we'll assume the tradition is 2:00s, not 2:00.
1491 # From Paul Eggert (2006-03-22):
1492 # The Department of Internal Affairs (DIA) maintains a brief history,
1493 # as does Carol Squires; see tz-link.htm for the full references.
1494 # Use these sources in preference to Shanks & Pottenger.
1496 # For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
1497 # transitions at 2:45 local standard time; this confirms that Chatham
1498 # is always exactly 45 minutes ahead of Auckland.
1500 # From Colin Sharples (2007-04-30):
1501 # DST will now start on the last Sunday in September, and end on the
1502 # first Sunday in April. The changes take effect this year, meaning
1503 # that DST will begin on 2007-09-30 2008-04-06.
1504 # http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended
1506 ###############################################################################
1511 # Howse writes (p 153) that in 1879 the British governor of Fiji
1512 # enacted an ordinance standardizing the islands on Antipodean Time
1513 # instead of the American system (which was one day behind).
1515 # From Rives McDow (1998-10-08):
1516 # Fiji will introduce DST effective 0200 local time, 1998-11-01
1517 # until 0300 local time 1999-02-28. Each year the DST period will
1518 # be from the first Sunday in November until the last Sunday in February.
1520 # From Paul Eggert (2000-01-08):
1521 # IATA SSIM (1999-09) says DST ends 0100 local time. Go with McDow.
1523 # From the BBC World Service in
1524 # http://news.bbc.co.uk/2/hi/asia-pacific/205226.stm (1998-10-31 16:03 UTC):
1525 # The Fijiian government says the main reasons for the time change is to
1526 # improve productivity and reduce road accidents.... [T]he move is also
1527 # intended to boost Fiji's ability to attract tourists to witness the dawning
1528 # of the new millennium.
1530 # http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13)
1531 # reports that Fiji has discontinued DST.
1535 # Johnston data is from usno1995.
1540 # From Paul Eggert (1996-01-22):
1541 # Today's _Wall Street Journal_ (page 1) reports that Kiribati
1542 # ``declared it the same day [throughout] the country as of Jan. 1, 1995''
1543 # as part of the competition to be first into the 21st century.
1548 # In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
1549 # I wonder what happened in Kwajalein, where there was NO Friday,
1550 # 1993-08-20. Thursday night at midnight Kwajalein switched sides with
1551 # respect to the International Date Line, to rejoin its fellow islands,
1552 # going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
1555 # N Mariana Is, Guam
1557 # Howse writes (p 153) ``The Spaniards, on the other hand, reached the
1558 # Philippines and the Ladrones from America,'' and implies that the Ladrones
1559 # (now called the Marianas) kept American date for quite some time.
1560 # For now, we assume the Ladrones switched at the same time as the Philippines;
1563 # US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time,
1564 # under the name "Chamorro Standard Time". There is no official abbreviation,
1565 # but Congressman Robert A. Underwood, author of the bill that became law,
1566 # wrote in a press release (2000-12-27) that he will seek the use of "ChST".
1571 # Alan Eugene Davis writes (1996-03-16),
1572 # ``I am certain, having lived there for the past decade, that "Truk"
1573 # (now properly known as Chuuk) ... is in the time zone GMT+10.''
1575 # Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
1576 # on 1978-10-01; ignore this for now.
1578 # From Paul Eggert (1999-10-29):
1579 # The Federated States of Micronesia Visitors Board writes in
1580 # <a href="http://www.fsmgov.org/info/clocks.html">
1581 # The Federated States of Micronesia - Visitor Information
1583 # that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
1584 # We don't know when Kosrae switched from UTC+12; assume January 1 for now.
1589 # From Charles T O'Connor, KMTH DJ (1956),
1590 # quoted in the KTMH section of the Radio Heritage Collection
1591 # <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31):
1592 # For the past two months we've been on what is known as Daylight
1593 # Saving Time. This time has put us on air at 5am in the morning,
1594 # your time down there in New Zealand. Starting September 2, 1956
1595 # we'll again go back to Standard Time. This'll mean that we'll go to
1596 # air at 6am your time.
1598 # From Paul Eggert (2003-03-23):
1599 # We don't know the date of that quote, but we'll guess they
1600 # started DST on June 3. Possibly DST was observed other years
1601 # in Midway, but we have no record of it.
1606 # From Rives McDow (1999-11-08):
1607 # A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998
1608 # with regard to Pitcairn Standard Time. The Proclamation is as follows.
1610 # The local time for general purposes in the Islands shall be
1611 # Co-ordinated Universal time minus 8 hours and shall be known
1612 # as Pitcairn Standard Time.
1614 # ... I have also seen Pitcairn listed as UTC minus 9 hours in several
1615 # references, and can only assume that this was an error in interpretation
1616 # somehow in light of this proclamation.
1618 # From Rives McDow (1999-11-09):
1619 # The Proclamation regarding Pitcairn time came into effect on 27 April 1998
1622 # From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:
1623 # Betty Christian told me yesterday that their local time is the same as
1624 # Pacific Standard Time. They used to be 1/2 hour different from us here in
1625 # Sacramento but it was changed a couple of years ago.
1630 # Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
1631 # that in 1879 the King of Samoa decided to change
1632 # ``the date in his kingdom from the Antipodean to the American system,
1633 # ordaining -- by a masterpiece of diplomatic flattery -- that
1634 # the Fourth of July should be celebrated twice in that year.''
1639 # From Paul Eggert (1996-01-22):
1640 # Today's _Wall Street Journal_ (p 1) reports that ``Tonga has been plotting
1641 # to sneak ahead of [New Zealanders] by introducing daylight-saving time.''
1642 # Since Kiribati has moved the Date Line it's not clear what Tonga will do.
1644 # Don Mundell writes in the 1997-02-20 Tonga Chronicle
1645 # <a href="http://www.tongatapu.net.to/tonga/homeland/timebegins.htm">
1646 # How Tonga became `The Land where Time Begins'
1649 # Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST
1650 # 12 hours and 20 minutes ahead of GMT. When New Zealand adjusted its
1651 # standard time in 1940s, Tonga had the choice of subtracting from its
1652 # local time to come on the same standard time as New Zealand or of
1653 # advancing its time to maintain the differential of 13 degrees
1654 # (approximately 50 minutes ahead of New Zealand time).
1656 # Because His Majesty King Taufa'ahau Tupou IV, then Crown Prince
1657 # Tungi, preferred to ensure Tonga's title as the land where time
1658 # begins, the Legislative Assembly approved the latter change.
1660 # But some of the older, more conservative members from the outer
1661 # islands objected. "If at midnight on Dec. 31, we move ahead 40
1662 # minutes, as your Royal Highness wishes, what becomes of the 40
1663 # minutes we have lost?"
1665 # The Crown Prince, presented an unanswerable argument: "Remember that
1666 # on the World Day of Prayer, you would be the first people on Earth
1667 # to say your prayers in the morning."
1669 # From Paul Eggert (2006-03-22):
1670 # Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
1672 # From Eric Ulevik (1999-05-03):
1673 # Tonga's director of tourism, who is also secretary of the National Millennium
1674 # Committee, has a plan to get Tonga back in front.
1675 # He has proposed a one-off move to tropical daylight saving for Tonga from
1676 # October to March, which has won approval in principle from the Tongan
1679 # From Steffen Thorsen (1999-09-09):
1680 # * Tonga will introduce DST in November
1682 # I was given this link by John Letts:
1683 # <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
1684 # http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
1687 # I have not been able to find exact dates for the transition in November
1688 # yet. By reading this article it seems like Fiji will be 14 hours ahead
1689 # of UTC as well, but as far as I know Fiji will only be 13 hours ahead
1690 # (12 + 1 hour DST).
1692 # From Arthur David Olson (1999-09-20):
1693 # According to <a href="http://www.tongaonline.com/news/sept1799.html">
1694 # http://www.tongaonline.com/news/sept1799.html
1696 # "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
1697 # and annually thereafter from the first Saturday in October through the
1698 # third Saturday of April. Under the system approved by Privy Council on
1699 # Sept. 10, clocks must be turned ahead one hour on the opening day and
1700 # set back an hour on the closing date."
1701 # Alas, no indication of the time of day.
1703 # From Rives McDow (1999-10-06):
1704 # Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
1705 # Daylight Saving ends on April 16 at 0300am which is Sunday morning.
1707 # From Steffen Thorsen (2000-10-31):
1708 # Back in March I found a notice on the website http://www.tongaonline.com
1709 # that Tonga changed back to standard time one month early, on March 19
1710 # instead of the original reported date April 16. Unfortunately, the article
1711 # is no longer available on the site, and I did not make a copy of the
1712 # text, and I have forgotten to report it here.
1713 # (Original URL was: http://www.tongaonline.com/news/march162000.htm )
1715 # From Rives McDow (2000-12-01):
1716 # Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
1718 # From Sione Moala-Mafi (2001-09-20) via Rives McDow:
1719 # At 2:00am on the first Sunday of November, the standard time in the Kingdom
1720 # shall be moved forward by one hour to 3:00am. At 2:00am on the last Sunday
1721 # of January the standard time in the Kingdom shall be moved backward by one
1724 # From Pulu 'Anau (2002-11-05):
1725 # The law was for 3 years, supposedly to get renewed. It wasn't.
1730 # From Vernice Anderson, Personal Secretary to Philip Jessup,
1731 # US Ambassador At Large (oral history interview, 1971-02-02):
1733 # Saturday, the 14th [of October, 1950] -- ... The time was all the
1734 # more confusing at that point, because we had crossed the
1735 # International Date Line, thus getting two Sundays. Furthermore, we
1736 # discovered that Wake Island had two hours of daylight saving time
1737 # making calculation of time in Washington difficult if not almost
1740 # http://www.trumanlibrary.org/wake/meeting.htm
1742 # From Paul Eggert (2003-03-23):
1743 # We have no other report of DST in Wake Island, so omit this info for now.
1745 ###############################################################################
1747 # The International Date Line
1749 # From Gwillim Law (2000-01-03):
1751 # The International Date Line is not defined by any international standard,
1752 # convention, or treaty. Mapmakers are free to draw it as they please.
1753 # Reputable mapmakers will simply ensure that every point of land appears on
1754 # the correct side of the IDL, according to the date legally observed there.
1756 # When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
1757 # Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
1758 # to the east side of the Phoenix and Line Islands), I suppose that most
1759 # mapmakers redrew the IDL following the boundary of Kiribati. Even that line
1760 # has a rather arbitrary nature. The straight-line boundaries between Pacific
1761 # island nations that are shown on many maps are based on an international
1762 # convention, but are not legally binding national borders.... The date is
1763 # governed by the IDL; therefore, even on the high seas, there may be some
1764 # places as late as fourteen hours later than UTC. And, since the IDL is not
1765 # an international standard, there are some places on the high seas where the
1766 # correct date is ambiguous.
1768 # From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
1769 # Before 1920, all ships kept local apparent time on the high seas by setting
1770 # their clocks at night or at the morning sight so that, given the ship's
1771 # speed and direction, it would be 12 o'clock when the Sun crossed the ship's
1772 # meridian (12 o'clock = local apparent noon). During 1917, at the
1773 # Anglo-French Conference on Time-keeping at Sea, it was recommended that all
1774 # ships, both military and civilian, should adopt hourly standard time zones
1775 # on the high seas. Whenever a ship was within the territorial waters of any
1776 # nation it would use that nation's standard time. The captain was permitted
1777 # to change his ship's clocks at a time of his choice following his ship's
1778 # entry into another zone time--he often chose midnight. These zones were
1779 # adopted by all major fleets between 1920 and 1925 but not by many
1780 # independent merchant ships until World War II.
1782 # From Paul Eggert, using references suggested by Oscar van Vlijmen
1785 # The American Practical Navigator (2002)
1786 # <http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187>
1787 # talks only about the 180-degree meridian with respect to ships in
1788 # international waters; it ignores the international date line.
projects / FreeBSD / releng / 9.3.git / blob