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