1# This file is in the public domain, so clarified as of 2# 2009-05-17 by Arthur David Olson. 3 4# This file also includes Pacific islands. 5 6# Notes are at the end of this file 7 8############################################################################### 9 10# Australia 11 12# Please see the notes below for the controversy about "EST" versus "AEST" etc. 13 14# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 15Rule Aus 1917 only - Jan 1 0:01 1:00 D 16Rule Aus 1917 only - Mar 25 2:00 0 S 17Rule Aus 1942 only - Jan 1 2:00 1:00 D 18Rule Aus 1942 only - Mar 29 2:00 0 S 19Rule Aus 1942 only - Sep 27 2:00 1:00 D 20Rule Aus 1943 1944 - Mar lastSun 2:00 0 S 21Rule Aus 1943 only - Oct 3 2:00 1:00 D 22# Go with Whitman and the Australian National Standards Commission, which 23# says W Australia didn't use DST in 1943/1944. Ignore Whitman's claim that 24# 1944/1945 was just like 1943/1944. 25 26# Zone NAME GMTOFF RULES FORMAT [UNTIL] 27# Northern Territory 28Zone Australia/Darwin 8:43:20 - LMT 1895 Feb 29 9:00 - ACST 1899 May 30 9:30 Aus AC%sT 31# Western Australia 32# 33# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 34Rule AW 1974 only - Oct lastSun 2:00s 1:00 D 35Rule AW 1975 only - Mar Sun>=1 2:00s 0 S 36Rule AW 1983 only - Oct lastSun 2:00s 1:00 D 37Rule AW 1984 only - Mar Sun>=1 2:00s 0 S 38Rule AW 1991 only - Nov 17 2:00s 1:00 D 39Rule AW 1992 only - Mar Sun>=1 2:00s 0 S 40Rule AW 2006 only - Dec 3 2:00s 1:00 D 41Rule AW 2007 2009 - Mar lastSun 2:00s 0 S 42Rule AW 2007 2008 - Oct lastSun 2:00s 1:00 D 43Zone Australia/Perth 7:43:24 - LMT 1895 Dec 44 8:00 Aus AW%sT 1943 Jul 45 8:00 AW AW%sT 46Zone Australia/Eucla 8:35:28 - LMT 1895 Dec 47 8:45 Aus ACW%sT 1943 Jul 48 8:45 AW ACW%sT 49 50# Queensland 51# 52# From Alex Livingston (1996-11-01): 53# I have heard or read more than once that some resort islands off the coast 54# of Queensland chose to keep observing daylight-saving time even after 55# Queensland ceased to. 56# 57# From Paul Eggert (1996-11-22): 58# IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman, 59# Hamilton) observed DST for two years after the rest of Queensland stopped. 60# Hamilton is the largest, but there is also a Hamilton in Victoria, 61# so use Lindeman. 62# 63# From J William Piggott (2016-02-20): 64# There is no location named Holiday Islands in Queensland Australia; holiday 65# islands is a colloquial term used globally. Hayman and Lindeman are at the 66# north and south extremes of the Whitsunday Islands archipelago, and 67# Hamilton is in between; it is reasonable to believe that this time zone 68# applies to all of the Whitsundays. 69# http://www.australia.gov.au/about-australia/australian-story/austn-islands 70# 71# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 72Rule AQ 1971 only - Oct lastSun 2:00s 1:00 D 73Rule AQ 1972 only - Feb lastSun 2:00s 0 S 74Rule AQ 1989 1991 - Oct lastSun 2:00s 1:00 D 75Rule AQ 1990 1992 - Mar Sun>=1 2:00s 0 S 76Rule Holiday 1992 1993 - Oct lastSun 2:00s 1:00 D 77Rule Holiday 1993 1994 - Mar Sun>=1 2:00s 0 S 78Zone Australia/Brisbane 10:12:08 - LMT 1895 79 10:00 Aus AE%sT 1971 80 10:00 AQ AE%sT 81Zone Australia/Lindeman 9:55:56 - LMT 1895 82 10:00 Aus AE%sT 1971 83 10:00 AQ AE%sT 1992 Jul 84 10:00 Holiday AE%sT 85 86# South Australia 87# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 88Rule AS 1971 1985 - Oct lastSun 2:00s 1:00 D 89Rule AS 1986 only - Oct 19 2:00s 1:00 D 90Rule AS 1987 2007 - Oct lastSun 2:00s 1:00 D 91Rule AS 1972 only - Feb 27 2:00s 0 S 92Rule AS 1973 1985 - Mar Sun>=1 2:00s 0 S 93Rule AS 1986 1990 - Mar Sun>=15 2:00s 0 S 94Rule AS 1991 only - Mar 3 2:00s 0 S 95Rule AS 1992 only - Mar 22 2:00s 0 S 96Rule AS 1993 only - Mar 7 2:00s 0 S 97Rule AS 1994 only - Mar 20 2:00s 0 S 98Rule AS 1995 2005 - Mar lastSun 2:00s 0 S 99Rule AS 2006 only - Apr 2 2:00s 0 S 100Rule AS 2007 only - Mar lastSun 2:00s 0 S 101Rule AS 2008 max - Apr Sun>=1 2:00s 0 S 102Rule AS 2008 max - Oct Sun>=1 2:00s 1:00 D 103# Zone NAME GMTOFF RULES FORMAT [UNTIL] 104Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb 105 9:00 - ACST 1899 May 106 9:30 Aus AC%sT 1971 107 9:30 AS AC%sT 108 109# Tasmania 110# 111# From Paul Eggert (2005-08-16): 112# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml 113# says King Island didn't observe DST from WWII until late 1971. 114# 115# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 116Rule AT 1967 only - Oct Sun>=1 2:00s 1:00 D 117Rule AT 1968 only - Mar lastSun 2:00s 0 S 118Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 D 119Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 S 120Rule AT 1972 only - Feb lastSun 2:00s 0 S 121Rule AT 1973 1981 - Mar Sun>=1 2:00s 0 S 122Rule AT 1982 1983 - Mar lastSun 2:00s 0 S 123Rule AT 1984 1986 - Mar Sun>=1 2:00s 0 S 124Rule AT 1986 only - Oct Sun>=15 2:00s 1:00 D 125Rule AT 1987 1990 - Mar Sun>=15 2:00s 0 S 126Rule AT 1987 only - Oct Sun>=22 2:00s 1:00 D 127Rule AT 1988 1990 - Oct lastSun 2:00s 1:00 D 128Rule AT 1991 1999 - Oct Sun>=1 2:00s 1:00 D 129Rule AT 1991 2005 - Mar lastSun 2:00s 0 S 130Rule AT 2000 only - Aug lastSun 2:00s 1:00 D 131Rule AT 2001 max - Oct Sun>=1 2:00s 1:00 D 132Rule AT 2006 only - Apr Sun>=1 2:00s 0 S 133Rule AT 2007 only - Mar lastSun 2:00s 0 S 134Rule AT 2008 max - Apr Sun>=1 2:00s 0 S 135# Zone NAME GMTOFF RULES FORMAT [UNTIL] 136Zone Australia/Hobart 9:49:16 - LMT 1895 Sep 137 10:00 - AEST 1916 Oct 1 2:00 138 10:00 1:00 AEDT 1917 Feb 139 10:00 Aus AE%sT 1967 140 10:00 AT AE%sT 141Zone Australia/Currie 9:35:28 - LMT 1895 Sep 142 10:00 - AEST 1916 Oct 1 2:00 143 10:00 1:00 AEDT 1917 Feb 144 10:00 Aus AE%sT 1971 Jul 145 10:00 AT AE%sT 146 147# Victoria 148# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 149Rule AV 1971 1985 - Oct lastSun 2:00s 1:00 D 150Rule AV 1972 only - Feb lastSun 2:00s 0 S 151Rule AV 1973 1985 - Mar Sun>=1 2:00s 0 S 152Rule AV 1986 1990 - Mar Sun>=15 2:00s 0 S 153Rule AV 1986 1987 - Oct Sun>=15 2:00s 1:00 D 154Rule AV 1988 1999 - Oct lastSun 2:00s 1:00 D 155Rule AV 1991 1994 - Mar Sun>=1 2:00s 0 S 156Rule AV 1995 2005 - Mar lastSun 2:00s 0 S 157Rule AV 2000 only - Aug lastSun 2:00s 1:00 D 158Rule AV 2001 2007 - Oct lastSun 2:00s 1:00 D 159Rule AV 2006 only - Apr Sun>=1 2:00s 0 S 160Rule AV 2007 only - Mar lastSun 2:00s 0 S 161Rule AV 2008 max - Apr Sun>=1 2:00s 0 S 162Rule AV 2008 max - Oct Sun>=1 2:00s 1:00 D 163# Zone NAME GMTOFF RULES FORMAT [UNTIL] 164Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb 165 10:00 Aus AE%sT 1971 166 10:00 AV AE%sT 167 168# New South Wales 169# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 170Rule AN 1971 1985 - Oct lastSun 2:00s 1:00 D 171Rule AN 1972 only - Feb 27 2:00s 0 S 172Rule AN 1973 1981 - Mar Sun>=1 2:00s 0 S 173Rule AN 1982 only - Apr Sun>=1 2:00s 0 S 174Rule AN 1983 1985 - Mar Sun>=1 2:00s 0 S 175Rule AN 1986 1989 - Mar Sun>=15 2:00s 0 S 176Rule AN 1986 only - Oct 19 2:00s 1:00 D 177Rule AN 1987 1999 - Oct lastSun 2:00s 1:00 D 178Rule AN 1990 1995 - Mar Sun>=1 2:00s 0 S 179Rule AN 1996 2005 - Mar lastSun 2:00s 0 S 180Rule AN 2000 only - Aug lastSun 2:00s 1:00 D 181Rule AN 2001 2007 - Oct lastSun 2:00s 1:00 D 182Rule AN 2006 only - Apr Sun>=1 2:00s 0 S 183Rule AN 2007 only - Mar lastSun 2:00s 0 S 184Rule AN 2008 max - Apr Sun>=1 2:00s 0 S 185Rule AN 2008 max - Oct Sun>=1 2:00s 1:00 D 186# Zone NAME GMTOFF RULES FORMAT [UNTIL] 187Zone Australia/Sydney 10:04:52 - LMT 1895 Feb 188 10:00 Aus AE%sT 1971 189 10:00 AN AE%sT 190Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb 191 10:00 - AEST 1896 Aug 23 192 9:00 - ACST 1899 May 193 9:30 Aus AC%sT 1971 194 9:30 AN AC%sT 2000 195 9:30 AS AC%sT 196 197# Lord Howe Island 198# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 199Rule LH 1981 1984 - Oct lastSun 2:00 1:00 D 200Rule LH 1982 1985 - Mar Sun>=1 2:00 0 S 201Rule LH 1985 only - Oct lastSun 2:00 0:30 D 202Rule LH 1986 1989 - Mar Sun>=15 2:00 0 S 203Rule LH 1986 only - Oct 19 2:00 0:30 D 204Rule LH 1987 1999 - Oct lastSun 2:00 0:30 D 205Rule LH 1990 1995 - Mar Sun>=1 2:00 0 S 206Rule LH 1996 2005 - Mar lastSun 2:00 0 S 207Rule LH 2000 only - Aug lastSun 2:00 0:30 D 208Rule LH 2001 2007 - Oct lastSun 2:00 0:30 D 209Rule LH 2006 only - Apr Sun>=1 2:00 0 S 210Rule LH 2007 only - Mar lastSun 2:00 0 S 211Rule LH 2008 max - Apr Sun>=1 2:00 0 S 212Rule LH 2008 max - Oct Sun>=1 2:00 0:30 D 213Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb 214 10:00 - AEST 1981 Mar 215 10:30 LH LH%sT 216 217# Australian miscellany 218# 219# Ashmore Is, Cartier 220# no indigenous inhabitants; only seasonal caretakers 221# no times are set 222# 223# Coral Sea Is 224# no indigenous inhabitants; only meteorologists 225# no times are set 226# 227# Macquarie 228# Permanent occupation (scientific station) 1911-1915 and since 25 March 1948; 229# sealing and penguin oil station operated Nov 1899 to Apr 1919. See the 230# Tasmania Parks & Wildlife Service history of sealing at Macquarie Island 231# http://www.parks.tas.gov.au/index.aspx?base=1828 232# http://www.parks.tas.gov.au/index.aspx?base=1831 233# Guess that it was like Australia/Hobart while inhabited before 2010. 234# 235# From Steffen Thorsen (2010-03-10): 236# We got these changes from the Australian Antarctic Division: 237# - Macquarie Island will stay on UTC+11 for winter and therefore not 238# switch back from daylight savings time when other parts of Australia do 239# on 4 April. 240# 241# From Arthur David Olson (2013-05-23): 242# The 1919 transition is overspecified below so pre-2013 zics 243# will produce a binary file with an [A]EST-type as the first 32-bit type; 244# this is required for correct handling of times before 1916 by 245# pre-2013 versions of localtime. 246Zone Antarctica/Macquarie 0 - -00 1899 Nov 247 10:00 - AEST 1916 Oct 1 2:00 248 10:00 1:00 AEDT 1917 Feb 249 10:00 Aus AE%sT 1919 Apr 1 0:00s 250 0 - -00 1948 Mar 25 251 10:00 Aus AE%sT 1967 252 10:00 AT AE%sT 2010 Apr 4 3:00 253 11:00 - MIST # Macquarie I Standard Time 254 255# Christmas 256# Zone NAME GMTOFF RULES FORMAT [UNTIL] 257Zone Indian/Christmas 7:02:52 - LMT 1895 Feb 258 7:00 - CXT # Christmas Island Time 259 260# Cocos (Keeling) Is 261# These islands were ruled by the Ross family from about 1830 to 1978. 262# We don't know when standard time was introduced; for now, we guess 1900. 263# Zone NAME GMTOFF RULES FORMAT [UNTIL] 264Zone Indian/Cocos 6:27:40 - LMT 1900 265 6:30 - CCT # Cocos Islands Time 266 267 268# Fiji 269 270# Milne gives 11:55:44 for Suva. 271 272# From Alexander Krivenyshev (2009-11-10): 273# According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST 274# from November 29th 2009 to April 25th 2010. 275# 276# "Daylight savings to commence this month" 277# http://www.radiofiji.com.fj/fullstory.php?id=23719 278# http://www.worldtimezone.com/dst_news/dst_news_fiji01.html 279 280# From Steffen Thorsen (2009-11-10): 281# The Fiji Government has posted some more details about the approved 282# amendments: 283# http://www.fiji.gov.fj/publish/page_16198.shtml 284 285# From Steffen Thorsen (2010-03-03): 286# The Cabinet in Fiji has decided to end DST about a month early, on 287# 2010-03-28 at 03:00. 288# The plan is to observe DST again, from 2010-10-24 to sometime in March 289# 2011 (last Sunday a good guess?). 290# 291# Official source: 292# 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# A bit more background info here: 295# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html 296 297# From Alexander Krivenyshev (2010-10-24): 298# According to Radio Fiji and Fiji Times online, Fiji will end DST 3 299# weeks earlier than expected - on March 6, 2011, not March 27, 2011... 300# Here is confirmation from Government of the Republic of the Fiji Islands, 301# Ministry of Information (fiji.gov.fj) web site: 302# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155 303# http://www.worldtimezone.com/dst_news/dst_news_fiji04.html 304 305# From Steffen Thorsen (2011-10-03): 306# Now the dates have been confirmed, and at least our start date 307# assumption was correct (end date was one week wrong). 308# 309# 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# which says 311# Members of the public are reminded to change their time to one hour in 312# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to 313# 2am on February 26 next year. 314 315# From Ken Rylander (2011-10-24) 316# Another change to the Fiji DST end date. In the TZ database the end date for 317# Fiji DST 2012, is currently Feb 26. This has been changed to Jan 22. 318# 319# 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# states: 321# 322# The end of daylight saving scheduled initially for the 26th of February 2012 323# has been brought forward to the 22nd of January 2012. 324# The commencement of daylight saving will remain unchanged and start 325# on the 23rd of October, 2011. 326 327# From the Fiji Government Online Portal (2012-08-21) via Steffen Thorsen: 328# The Minister for Labour, Industrial Relations and Employment Mr Jone Usamate 329# today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st 330# October 2012 and end at 3 am on Sunday 20th January 2013. 331# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155 332 333# From the Fijian Government Media Center (2013-08-30) via David Wheeler: 334# Fiji will start daylight savings on Sunday 27th October, 2013 ... 335# move clocks forward by one hour from 2am 336# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx 337 338# From Steffen Thorsen (2013-01-10): 339# Fiji will end DST on 2014-01-19 02:00: 340# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx 341 342# From Ken Rylander (2014-10-20): 343# DST will start Nov. 2 this year. 344# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-NOVEMBER-2ND.aspx 345 346# From a government order dated 2015-08-26 and published as Legal Notice No. 77 347# in the Government of Fiji Gazette Supplement No. 24 (2015-08-28), 348# via Ken Rylander (2015-09-02): 349# the daylight saving period is 1 hour in advance of the standard time 350# commencing at 2.00 am on Sunday 1st November, 2015 and ending at 351# 3.00 am on Sunday 17th January, 2016. 352 353# From Raymond Kumar (2016-10-04): 354# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-6th-NOVEMBER,-2016.aspx 355# "Fiji's daylight savings will begin on Sunday, 6 November 2016, when 356# clocks go forward an hour at 2am to 3am.... Daylight Saving will 357# end at 3.00am on Sunday 15th January 2017." 358 359# From Paul Eggert (2016-10-03): 360# For now, guess DST from 02:00 the first Sunday in November to 361# 03:00 the third Sunday in January. Although ad hoc, it matches 362# transitions since late 2014 and seems more likely to match future 363# practice than guessing no DST. 364 365# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 366Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S 367Rule Fiji 1999 2000 - Feb lastSun 3:00 0 - 368Rule Fiji 2009 only - Nov 29 2:00 1:00 S 369Rule Fiji 2010 only - Mar lastSun 3:00 0 - 370Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 S 371Rule Fiji 2011 only - Mar Sun>=1 3:00 0 - 372Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 - 373Rule Fiji 2014 only - Jan Sun>=18 2:00 0 - 374Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 S 375Rule Fiji 2015 max - Jan Sun>=15 3:00 0 - 376# Zone NAME GMTOFF RULES FORMAT [UNTIL] 377Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva 378 12:00 Fiji FJ%sT # Fiji Time 379 380# French Polynesia 381# Zone NAME GMTOFF RULES FORMAT [UNTIL] 382Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea 383 -9:00 - GAMT # Gambier Time 384Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct 385 -9:30 - MART # Marquesas Time 386Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete 387 -10:00 - TAHT # Tahiti Time 388# Clipperton (near North America) is administered from French Polynesia; 389# it is uninhabited. 390 391# Guam 392# Zone NAME GMTOFF RULES FORMAT [UNTIL] 393Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 394 9:39:00 - LMT 1901 # Agana 395 10:00 - GST 2000 Dec 23 # Guam 396 10:00 - ChST # Chamorro Standard Time 397Link Pacific/Guam Pacific/Saipan # N Mariana Is 398 399# Kiribati 400# Zone NAME GMTOFF RULES FORMAT [UNTIL] 401Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki 402 12:00 - GILT # Gilbert Is Time 403Zone 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 407Zone 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 411 412# N Mariana Is 413# See Pacific/Guam. 414 415# Marshall Is 416# Zone NAME GMTOFF RULES FORMAT [UNTIL] 417Zone Pacific/Majuro 11:24:48 - LMT 1901 418 11:00 - MHT 1969 Oct # Marshall Islands Time 419 12:00 - MHT 420Zone 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 424 425# Micronesia 426# Zone NAME GMTOFF RULES FORMAT [UNTIL] 427Zone Pacific/Chuuk 10:07:08 - LMT 1901 428 10:00 - CHUT # Chuuk Time 429Zone Pacific/Pohnpei 10:32:52 - LMT 1901 # Kolonia 430 11:00 - PONT # Pohnpei Time 431Zone Pacific/Kosrae 10:51:56 - LMT 1901 432 11:00 - KOST 1969 Oct # Kosrae Time 433 12:00 - KOST 1999 434 11:00 - KOST 435 436# Nauru 437# Zone NAME GMTOFF RULES FORMAT [UNTIL] 438Zone 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 443 444# New Caledonia 445# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 446Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 S 447Rule NC 1978 1979 - Feb 27 0:00 0 - 448Rule NC 1996 only - Dec 1 2:00s 1:00 S 449# Shanks & Pottenger say the following was at 2:00; go with IATA. 450Rule NC 1997 only - Mar 2 2:00s 0 - 451# Zone NAME GMTOFF RULES FORMAT [UNTIL] 452Zone Pacific/Noumea 11:05:48 - LMT 1912 Jan 13 # Noum��a 453 11:00 NC NC%sT 454 455 456############################################################################### 457 458# New Zealand 459 460# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 461Rule NZ 1927 only - Nov 6 2:00 1:00 S 462Rule NZ 1928 only - Mar 4 2:00 0 M 463Rule NZ 1928 1933 - Oct Sun>=8 2:00 0:30 S 464Rule NZ 1929 1933 - Mar Sun>=15 2:00 0 M 465Rule NZ 1934 1940 - Apr lastSun 2:00 0 M 466Rule NZ 1934 1940 - Sep lastSun 2:00 0:30 S 467Rule NZ 1946 only - Jan 1 0:00 0 S 468# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no 469# convenient single notation for the date and time of this transition 470# so we must duplicate the Rule lines. 471Rule NZ 1974 only - Nov Sun>=1 2:00s 1:00 D 472Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 D 473Rule NZ 1975 only - Feb lastSun 2:00s 0 S 474Rule Chatham 1975 only - Feb lastSun 2:45s 0 S 475Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D 476Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 D 477Rule NZ 1976 1989 - Mar Sun>=1 2:00s 0 S 478Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 S 479Rule NZ 1989 only - Oct Sun>=8 2:00s 1:00 D 480Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 D 481Rule NZ 1990 2006 - Oct Sun>=1 2:00s 1:00 D 482Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 D 483Rule NZ 1990 2007 - Mar Sun>=15 2:00s 0 S 484Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 S 485Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D 486Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 D 487Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S 488Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 S 489# Zone NAME GMTOFF RULES FORMAT [UNTIL] 490Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2 491 11:30 NZ NZ%sT 1946 Jan 1 492 12:00 NZ NZ%sT 493Zone Pacific/Chatham 12:13:48 - LMT 1868 Nov 2 494 12:15 - CHAST 1946 Jan 1 495 12:45 Chatham CHA%sT 496 497Link Pacific/Auckland Antarctica/McMurdo 498 499# Auckland Is 500# uninhabited; M��ori and Moriori, colonial settlers, pastoralists, sealers, 501# and scientific personnel have wintered 502 503# Campbell I 504# minor whaling stations operated 1909/1914 505# scientific station operated 1941/1995; 506# previously whalers, sealers, pastoralists, and scientific personnel wintered 507# was probably like Pacific/Auckland 508 509# Cook Is 510# From Shanks & Pottenger: 511# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 512Rule Cook 1978 only - Nov 12 0:00 0:30 HS 513Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 - 514Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 HS 515# Zone NAME GMTOFF RULES FORMAT [UNTIL] 516Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua 517 -10:30 - CKT 1978 Nov 12 # Cook Is Time 518 -10:00 Cook CK%sT 519 520############################################################################### 521 522 523# Niue 524# Zone NAME GMTOFF RULES FORMAT [UNTIL] 525Zone 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 529 530# Norfolk 531# Zone NAME GMTOFF RULES FORMAT [UNTIL] 532Zone 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 538 539# Palau (Belau) 540# Zone NAME GMTOFF RULES FORMAT [UNTIL] 541Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror 542 9:00 - PWT # Palau Time 543 544# Papua New Guinea 545# Zone NAME GMTOFF RULES FORMAT [UNTIL] 546Zone Pacific/Port_Moresby 9:48:40 - LMT 1880 547 9:48:32 - PMMT 1895 # Port Moresby Mean Time 548 10:00 - PGT # Papua New Guinea Time 549# 550# From Paul Eggert (2014-10-13): 551# Base the Bougainville entry on the Arawa-Kieta region, which appears to have 552# the most people even though it was devastated in the Bougainville Civil War. 553# 554# Although Shanks gives 1942-03-15 / 1943-11-01 for UT +09, these dates 555# are apparently rough guesswork from the starts of military campaigns. 556# The World War II entries below are instead based on Arawa-Kieta. 557# The Japanese occupied Kieta in July 1942, 558# according to the Pacific War Online Encyclopedia 559# http://pwencycl.kgbudge.com/B/o/Bougainville.htm 560# and seem to have controlled it until their 1945-08-21 surrender. 561# 562# 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: 565# http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/ 566# 567Zone Pacific/Bougainville 10:22:16 - LMT 1880 568 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 573 574# Pitcairn 575# Zone NAME GMTOFF RULES FORMAT [UNTIL] 576Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown 577 -8:30 - PNT 1998 Apr 27 0:00 578 -8:00 - PST # Pitcairn Standard Time 579 580# American Samoa 581Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5 582 -11:22:48 - LMT 1911 583 -11:00 - NST 1967 Apr # N=Nome 584 -11:00 - BST 1983 Nov 30 # B=Bering 585 -11:00 - SST # S=Samoa 586Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands 587 588# Samoa (formerly and also known as Western Samoa) 589 590# From Steffen Thorsen (2009-10-16): 591# We have been in contact with the government of Samoa again, and received 592# the following info: 593# 594# "Cabinet has now approved Daylight Saving to be effected next year 595# commencing from the last Sunday of September 2010 and conclude first 596# Sunday of April 2011." 597# 598# Background info: 599# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html 600# 601# Samoa's Daylight Saving Time Act 2009 is available here, but does not 602# contain any dates: 603# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf 604 605# From Laupue Raymond Hughes (2010-10-07): 606# Please see 607# http://www.mcil.gov.ws 608# the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday 609# September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight 610# to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks 611# backwards from 1:00am to 12:00am" 612 613# From Laupue Raymond Hughes (2011-03-07): 614# [http://www.mcil.gov.ws/ftcd/daylight_saving_2011.pdf] 615# 616# ... when the standard time strikes the hour of four o'clock (4.00am 617# or 0400 Hours) on the 2nd April 2011, then all instruments used to 618# measure standard time are to be adjusted/changed to three o'clock 619# (3:00am or 0300Hrs). 620 621# From David Z��lke (2011-05-09): 622# Subject: Samoa to move timezone from east to west of international date line 623# 624# http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963 625 626# From Paul Eggert (2014-06-27): 627# The International Date Line Act 2011 628# http://www.parliament.gov.ws/images/ACTS/International_Date_Line_Act__2011_-_Eng.pdf 629# changed Samoa from UT -11 to +13, effective "12 o'clock midnight, on 630# Thursday 29th December 2011". The International Date Line was adjusted 631# accordingly. 632 633# From Laupue Raymond Hughes (2011-09-02): 634# http://www.mcil.gov.ws/mcil_publications.html 635# 636# here is the official website publication for Samoa DST and dateline change 637# 638# DST 639# Year End Time Start Time 640# 2011 - - - - - - 24 September 3:00am to 4:00am 641# 2012 01 April 4:00am to 3:00am - - - - - - 642# 643# Dateline Change skip Friday 30th Dec 2011 644# Thursday 29th December 2011 23:59:59 Hours 645# Saturday 31st December 2011 00:00:00 Hours 646# 647# From Nicholas Pereira (2012-09-10): 648# Daylight Saving Time commences on Sunday 30th September 2012 and 649# ends on Sunday 7th of April 2013.... 650# http://www.mcil.gov.ws/mcil_publications.html 651# 652# From Paul Eggert (2014-07-08): 653# That web page currently lists transitions for 2012/3 and 2013/4. 654# Assume the pattern instituted in 2012 will continue indefinitely. 655 656# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 657Rule WS 2010 only - Sep lastSun 0:00 1 D 658Rule WS 2011 only - Apr Sat>=1 4:00 0 S 659Rule WS 2011 only - Sep lastSat 3:00 1 D 660Rule WS 2012 max - Apr Sun>=1 4:00 0 S 661Rule WS 2012 max - Sep lastSun 3:00 1 D 662# Zone NAME GMTOFF RULES FORMAT [UNTIL] 663Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 664 -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 668 669# Solomon Is 670# excludes Bougainville, for which see Papua New Guinea 671# Zone NAME GMTOFF RULES FORMAT [UNTIL] 672Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara 673 11:00 - SBT # Solomon Is Time 674 675# Tokelau Is 676# 677# From Gwillim Law (2011-12-29) 678# A correspondent informed me that Tokelau, like Samoa, will be skipping 679# December 31 this year ... 680# 681# From Steffen Thorsen (2012-07-25) 682# ... we double checked by calling hotels and offices based in Tokelau asking 683# about the time there, and they all told a time that agrees with UTC+13.... 684# Shanks says UTC-10 from 1901 [but] ... there is a good chance the change 685# actually was to UTC-11 back then. 686# 687# From Paul Eggert (2012-07-25) 688# A Google Books snippet of Appendix to the Journals of the House of 689# Representatives of New Zealand, Session 1948, 690# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau 691# was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger 692# are off by an hour starting in 1901. 693 694# Zone NAME GMTOFF RULES FORMAT [UNTIL] 695Zone Pacific/Fakaofo -11:24:56 - LMT 1901 696 -11:00 - TKT 2011 Dec 30 # Tokelau Time 697 13:00 - TKT 698 699# Tonga 700# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 701Rule Tonga 1999 only - Oct 7 2:00s 1:00 S 702Rule Tonga 2000 only - Mar 19 2:00s 0 - 703Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S 704Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - 705Rule Tonga 2016 max - Nov Sun>=1 2:00 1:00 S 706Rule Tonga 2017 max - Jan Sun>=15 3:00 0 - 707# Zone NAME GMTOFF RULES FORMAT [UNTIL] 708Zone Pacific/Tongatapu 12:19:20 - LMT 1901 709 12:20 - +1220 1941 710 13:00 - +13 1999 711 13:00 Tonga +13/+14 712 713# Tuvalu 714# Zone NAME GMTOFF RULES FORMAT [UNTIL] 715Zone Pacific/Funafuti 11:56:52 - LMT 1901 716 12:00 - TVT # Tuvalu Time 717 718 719# US minor outlying islands 720 721# Howland, Baker 722# Howland was mined for guano by American companies 1857-1878 and British 723# 1886-1891; Baker was similar but exact dates are not known. 724# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944; 725# uninhabited thereafter. 726# Howland observed Hawaii Standard Time (UT -10:30) in 1937; 727# see page 206 of Elgen M. Long and Marie K. Long, 728# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000). 729# So most likely Howland and Baker observed Hawaii Time from 1935 730# until they were abandoned after the war. 731 732# Jarvis 733# Mined for guano by American companies 1857-1879 and British 1883?-1891?. 734# Inhabited by civilians 1935-1942; IGY scientific base 1957-1958; 735# uninhabited thereafter. 736# no information; was probably like Pacific/Kiritimati 737 738# Johnston 739# 740# From Paul Eggert (2014-03-11): 741# Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind. 742# Details are uncertain. We have no data for Johnston after 1970, so 743# treat it like Hawaii for now. 744# 745# In his memoirs of June 6th to October 4, 1945 746# <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes, 747# "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM 748# Johnston time, 1:30 AM Kwajalein time." This was in June 1945, and 749# confirms that Johnston kept the same time as Honolulu in summer 1945. 750# 751# From Lyle McElhaney (2014-03-11): 752# [W]hen JI was being used for that [atomic bomb] testing, the time being used 753# was not Hawaiian time but rather the same time being used on the ships, 754# which had a GMT offset of -11 hours. This apparently applied to at least the 755# time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last 756# Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin, 757# "The United States High-Altitude Test Experience: A Review Emphasizing the 758# Impact on the Environment", Los Alamos LA-6405, Oct 1976. 759# http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf 760# See the table on page 4 where he lists GMT and local times for the tests; a 761# footnote for the JI tests reads that local time is "JI time = Hawaii Time 762# Minus One Hour". 763# 764# See 'northamerica' for Pacific/Johnston. 765 766# Kingman 767# uninhabited 768 769# Midway 770# See Pacific/Pago_Pago. 771 772# Palmyra 773# uninhabited since World War II; was probably like Pacific/Kiritimati 774 775# Wake 776# Zone NAME GMTOFF RULES FORMAT [UNTIL] 777Zone Pacific/Wake 11:06:28 - LMT 1901 778 12:00 - WAKT # Wake Time 779 780 781# Vanuatu 782# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 783Rule Vanuatu 1983 only - Sep 25 0:00 1:00 S 784Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 - 785Rule Vanuatu 1984 only - Oct 23 0:00 1:00 S 786Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 S 787Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 - 788Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 S 789# Zone NAME GMTOFF RULES FORMAT [UNTIL] 790Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 791 11:00 Vanuatu VU%sT # Vanuatu Time 792 793# Wallis and Futuna 794# Zone NAME GMTOFF RULES FORMAT [UNTIL] 795Zone Pacific/Wallis 12:15:20 - LMT 1901 796 12:00 - WFT # Wallis & Futuna Time 797 798############################################################################### 799 800# NOTES 801 802# This file is by no means authoritative; if you think you know better, 803# go ahead and edit the file (and please send any changes to 804# tz@iana.org for general use in the future). For more, please see 805# the file CONTRIBUTING in the tz distribution. 806 807# From Paul Eggert (2014-10-31): 808# 809# Unless otherwise specified, the source for data through 1990 is: 810# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 811# San Diego: ACS Publications, Inc. (2003). 812# Unfortunately this book contains many errors and cites no sources. 813# 814# Gwillim Law writes that a good source 815# for recent time zone data is the International Air Transport 816# Association's Standard Schedules Information Manual (IATA SSIM), 817# published semiannually. Law sent in several helpful summaries 818# of the IATA's data after 1990. Except where otherwise noted, 819# IATA SSIM is the source for entries after 1990. 820# 821# Another source occasionally used is Edward W. Whitman, World Time Differences, 822# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which 823# I found in the UCLA library. 824# 825# For data circa 1899, a common source is: 826# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 827# http://www.jstor.org/stable/1774359 828# 829# A reliable and entertaining source about time zones is 830# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). 831# 832# I invented the abbreviations marked '*' in the following table; 833# the rest are from earlier versions of this file, or from other sources. 834# Corrections are welcome! 835# std dst 836# LMT Local Mean Time 837# 8:00 AWST AWDT Western Australia 838# 8:45 ACWST ACWDT Central Western Australia* 839# 9:00 JST Japan 840# 9:30 ACST ACDT Central Australia 841# 10:00 AEST AEDT Eastern Australia 842# 10:00 ChST Chamorro 843# 10:30 LHST LHDT Lord Howe* 844# 11:00 BST Bougainville* 845# 11:30 NZMT NZST New Zealand through 1945 846# 12:00 NZST NZDT New Zealand 1946-present 847# 12:15 CHAST Chatham through 1945* 848# 12:45 CHAST CHADT Chatham 1946-present* 849# 13:00 WSST WSDT (western) Samoa 2011-present* 850# -11:30 WSST Western Samoa through 1950* 851# -11:00 SST Samoa 852# -10:00 HST Hawaii 853# - 8:00 PST Pitcairn* 854# 855# See the 'northamerica' file for Hawaii. 856# See the 'southamerica' file for Easter I and the Gal��pagos Is. 857 858############################################################################### 859 860# Australia 861 862# From Paul Eggert (2014-06-30): 863# Daylight saving time has long been controversial in Australia, pitting 864# region against region, rural against urban, and local against global. 865# For example, in her review of Graeme Davison's _The Unforgiving 866# Minute: how Australians learned to tell the time_ (1993), Perth native 867# Phillipa J Martyr wrote, "The section entitled 'Saving Daylight' was 868# very informative, but was (as can, sadly, only be expected from a 869# Melbourne-based study) replete with the usual chuckleheaded 870# Queenslanders and straw-chewing yokels from the West prattling fables 871# about fading curtains and crazed farm animals." 872# Electronic Journal of Australian and New Zealand History (1997-03-03) 873# http://www.jcu.edu.au/aff/history/reviews/davison.htm 874 875# From Paul Eggert (2005-12-08): 876# Implementation Dates of Daylight Saving Time within Australia 877# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml 878# summarizes daylight saving issues in Australia. 879 880# From Arthur David Olson (2005-12-12): 881# Lawlink NSW:Daylight Saving in New South Wales 882# http://www.lawlink.nsw.gov.au/lawlink/Corporate/ll_agdinfo.nsf/pages/community_relations_daylight_saving 883# covers New South Wales in particular. 884 885# From John Mackin (1991-03-06): 886# We in Australia have _never_ referred to DST as 'daylight' time. 887# It is called 'summer' time. Now by a happy coincidence, 'summer' 888# and 'standard' happen to start with the same letter; hence, the 889# abbreviation does _not_ change... 890# The legislation does not actually define abbreviations, at least 891# in this State, but the abbreviation is just commonly taken to be the 892# initials of the phrase, and the legislation here uniformly uses 893# the phrase 'summer time' and does not use the phrase 'daylight 894# time'. 895# Announcers on the Commonwealth radio network, the ABC (for Australian 896# Broadcasting Commission), use the phrases 'Eastern Standard Time' 897# or 'Eastern Summer Time'. (Note, though, that as I say in the 898# current australasia file, there is really no such thing.) Announcers 899# on its overseas service, Radio Australia, use the same phrases 900# prefixed by the word 'Australian' when referring to local times; 901# time announcements on that service, naturally enough, are made in UTC. 902 903# From Paul Eggert (2014-06-30): 904# 905# Inspired by Mackin's remarks quoted above, earlier versions of this 906# file used "EST" for both Eastern Standard Time and Eastern Summer 907# Time in Australia, and similarly for "CST", "CWST", and "WST". 908# However, these abbreviations were confusing and were not common 909# practice among Australians, and there were justifiable complaints 910# about them, so I attempted to survey current Australian usage. 911# For the tz database, the full English phrase is not that important; 912# what matters is the abbreviation. It's difficult to survey the web 913# directly for abbreviation usage, as there are so many false hits for 914# strings like "EST" and "EDT", so I looked for pages that defined an 915# abbreviation for eastern or central DST in Australia, and got the 916# following numbers of unique hits for the listed Google queries: 917# 918# 10 "Eastern Daylight Time AEST" site:au [some are false hits] 919# 10 "Eastern Summer Time AEST" site:au 920# 10 "Summer Time AEDT" site:au 921# 13 "EDST Eastern Daylight Saving Time" site:au 922# 18 "Summer Time ESST" site:au 923# 28 "Eastern Daylight Saving Time EDST" site:au 924# 39 "EDT Eastern Daylight Time" site:au [some are false hits] 925# 53 "Eastern Daylight Time EDT" site:au [some are false hits] 926# 54 "AEDT Australian Eastern Daylight Time" site:au 927# 182 "Eastern Daylight Time AEDT" site:au 928# 929# 17 "Central Daylight Time CDT" site:au [some are false hits] 930# 46 "Central Daylight Time ACDT" site:au 931# 932# I tried several other variants (e.g., "Eastern Summer Time EST") but 933# they all returned fewer than 10 unique hits. I also looked for pages 934# mentioning both "western standard time" and an abbreviation, since 935# there is no WST in the US to generate false hits, and found: 936# 937# 156 "western standard time" AWST site:au 938# 226 "western standard time" WST site:au 939# 940# I then surveyed the top ten newspapers in Australia by circulation as 941# listed in Wikipedia, using Google queries like "AEDT site:heraldsun.com.au" 942# and obtaining estimated counts from the initial page of search results. 943# All ten papers greatly preferred "AEDT" to "EDT". The papers 944# surveyed were the Herald Sun, The Daily Telegraph, The Courier-Mail, 945# The Sydney Morning Herald, The West Australian, The Age, The Advertiser, 946# The Australian, The Financial Review, and The Herald (Newcastle). 947# 948# I also searched for historical usage, to see whether abbreviations 949# like "AEDT" are new. A Trove search <http://trove.nla.gov.au/> 950# found only one newspaper (The Canberra Times) with a house style 951# dating back to the 1970s, I expect because other newspapers weren't 952# fully indexed. The Canberra Times strongly preferred abbreviations 953# like "AEDT". The first occurrence of "AEDT" was a World Weather 954# column (1971-11-17, page 24), and of "ACDT" was a Scoreboard column 955# (1993-01-24, p 16). The style was the typical usage but was not 956# strictly enforced; for example, "Welcome to the twilight zones ..." 957# (1994-10-29, p 1) uses the abbreviations AEST/AEDT, CST/CDT, and 958# WST, and goes on to say, "The confusion and frustration some feel 959# about the lack of uniformity among Australia's six states and two 960# territories has prompted one group to form its very own political 961# party -- the Sydney-based Daylight Saving Extension Party." 962# 963# I also surveyed federal government sources. They did not agree: 964# 965# The Australian Government (2014-03-26) 966# http://australia.gov.au/about-australia/our-country/time 967# (This document was produced by the Department of Finance.) 968# AEST ACST AWST AEDT ACDT 969# 970# Bureau of Meteorology (2012-11-08) 971# http://www.bom.gov.au/climate/averages/tables/daysavtm.shtml 972# EST CST WST EDT CDT 973# 974# Civil Aviation Safety Authority (undated) 975# http://services.casa.gov.au/outnback/inc/pages/episode3/episode-3_time_zones.shtml 976# EST CST WST (no abbreviations given for DST) 977# 978# Geoscience Australia (2011-11-24) 979# http://www.ga.gov.au/geodesy/astro/sunrise.jsp 980# AEST ACST AWST AEDT ACDT 981# 982# Parliamentary Library (2008-11-10) 983# http://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf 984# EST CST WST preferred for standard time; AEST AEDT ACST ACDT also used 985# 986# The Transport Safety Bureau has an extensive series of accident reports, 987# and investigators seem to use whatever abbreviation they like. 988# Googling site:atsb.gov.au found the following number of unique hits: 989# 311 "ESuT", 195 "EDT", 26 "AEDT", 83 "CSuT", 46 "CDT". 990# "_SuT" tended to appear in older reports, and "A_DT" tended to 991# appear in reports of events with international implications. 992# 993# From the above it appears that there is a working consensus in 994# Australia to use trailing "DT" for daylight saving time; although 995# some sources use trailing "SST" or "ST" or "SuT" they are by far in 996# the minority. The case for leading "A" is weaker, but since it 997# seems to be preferred in the overall web and is preferred in all 998# the leading newspaper websites and in many government departments, 999# it has a stronger case than omitting the leading "A". The current 1000# version of the database therefore uses abbreviations like "AEST" and 1001# "AEDT" for Australian time zones. 1002 1003# From Paul Eggert (1995-12-19): 1004# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ. 1005# Mark Prior writes that his newspaper 1006# reports that NSW's fall 1995 change will occur at 2:00, 1007# but Robert Elz says it's been 3:00 in Victoria since 1970 1008# and perhaps the newspaper's '2:00' is referring to standard time. 1009# For now we'll continue to assume 2:00s for changes since 1960. 1010 1011# From Eric Ulevik (1998-01-05): 1012# 1013# Here are some URLs to Australian time legislation. These URLs are stable, 1014# and should probably be included in the data file. There are probably more 1015# relevant entries in this database. 1016# 1017# NSW (including LHI and Broken Hill): 1018# Standard Time Act 1987 (updated 1995-04-04) 1019# http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html 1020# ACT 1021# Standard Time and Summer Time Act 1972 1022# http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html 1023# SA 1024# Standard Time Act, 1898 1025# http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html 1026 1027# From David Grosz (2005-06-13): 1028# It was announced last week that Daylight Saving would be extended by 1029# one week next year to allow for the 2006 Commonwealth Games. 1030# Daylight Saving is now to end for next year only on the first Sunday 1031# in April instead of the last Sunday in March. 1032# 1033# From Gwillim Law (2005-06-14): 1034# I did some Googling and found that all of those states (and territory) plan 1035# to extend DST together in 2006. 1036# ACT: http://www.cmd.act.gov.au/mediareleases/fileread.cfm?file=86.txt 1037# New South Wales: http://www.thecouriermail.news.com.au/common/story_page/0,5936,15538869%255E1702,00.html 1038# South Australia: http://www.news.com.au/story/0,10117,15555031-1246,00.html 1039# Tasmania: http://www.media.tas.gov.au/release.php?id=14772 1040# Victoria: I wasn't able to find anything separate, but the other articles 1041# allude to it. 1042# But not Queensland 1043# http://www.news.com.au/story/0,10117,15564030-1248,00.html 1044 1045# Northern Territory 1046 1047# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1048# # The NORTHERN TERRITORY.. [ Courtesy N.T. Dept of the Chief Minister ] 1049# # [ Nov 1990 ] 1050# # N.T. have never utilised any DST due to sub-tropical/tropical location. 1051# ... 1052# Zone Australia/North 9:30 - CST 1053 1054# From Bradley White (1991-03-04): 1055# A recent excerpt from an Australian newspaper... 1056# the Northern Territory do[es] not have daylight saving. 1057 1058# Western Australia 1059 1060# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1061# # The state of WESTERN AUSTRALIA.. [ Courtesy W.A. dept Premier+Cabinet ] 1062# # [ Nov 1990 ] 1063# # W.A. suffers from a great deal of public and political opposition to 1064# # DST in principle. A bill is brought before parliament in most years, but 1065# # usually defeated either in the upper house, or in party caucus 1066# # before reaching parliament. 1067# ... 1068# Zone Australia/West 8:00 AW %sST 1069# ... 1070# Rule AW 1974 only - Oct lastSun 2:00 1:00 D 1071# Rule AW 1975 only - Mar Sun>=1 3:00 0 W 1072# Rule AW 1983 only - Oct lastSun 2:00 1:00 D 1073# Rule AW 1984 only - Mar Sun>=1 3:00 0 W 1074 1075# From Bradley White (1991-03-04): 1076# A recent excerpt from an Australian newspaper... 1077# Western Australia...do[es] not have daylight saving. 1078 1079# From John D. Newman via Bradley White (1991-11-02): 1080# Western Australia is still on "winter time". Some DH in Sydney 1081# rang me at home a few days ago at 6.00am. (He had just arrived at 1082# work at 9.00am.) 1083# W.A. is switching to Summer Time on Nov 17th just to confuse 1084# everybody again. 1085 1086# From Arthur David Olson (1992-03-08): 1087# The 1992 ending date used in the rules is a best guess; 1088# it matches what was used in the past. 1089 1090# The Australian Bureau of Meteorology FAQ 1091# http://www.bom.gov.au/faq/faqgen.htm 1092# (1999-09-27) writes that Giles Meteorological Station uses 1093# South Australian time even though it's located in Western Australia. 1094 1095# Queensland 1096# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1097# # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] 1098# # [ Dec 1990 ] 1099# ... 1100# Zone Australia/Queensland 10:00 AQ %sST 1101# ... 1102# Rule AQ 1971 only - Oct lastSun 2:00 1:00 D 1103# Rule AQ 1972 only - Feb lastSun 3:00 0 E 1104# Rule AQ 1989 max - Oct lastSun 2:00 1:00 D 1105# Rule AQ 1990 max - Mar Sun>=1 3:00 0 E 1106 1107# From Bradley White (1989-12-24): 1108# "Australia/Queensland" now observes daylight time (i.e. from 1109# October 1989). 1110 1111# From Bradley White (1991-03-04): 1112# A recent excerpt from an Australian newspaper... 1113# ...Queensland...[has] agreed to end daylight saving 1114# at 3am tomorrow (March 3)... 1115 1116# From John Mackin (1991-03-06): 1117# I can certainly confirm for my part that Daylight Saving in NSW did in fact 1118# end on Sunday, 3 March. I don't know at what hour, though. (It surprised 1119# me.) 1120 1121# From Bradley White (1992-03-08): 1122# ...there was recently a referendum in Queensland which resulted 1123# in the experimental daylight saving system being abandoned. So, ... 1124# ... 1125# Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D 1126# Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S 1127# ... 1128 1129# From Arthur David Olson (1992-03-08): 1130# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes. 1131 1132# From Christopher Hunt (2006-11-21), after an advance warning 1133# from Jesper N��rgaard Welen (2006-11-01): 1134# WA are trialing DST for three years. 1135# http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf 1136 1137# From Rives McDow (2002-04-09): 1138# The most interesting region I have found consists of three towns on the 1139# southern coast.... South Australia observes daylight saving time; Western 1140# Australia does not. The two states are one and a half hours apart. The 1141# residents decided to forget about this nonsense of changing the clock so 1142# much and set the local time 20 hours and 45 minutes from the 1143# international date line, or right in the middle of the time of South 1144# Australia and Western Australia.... 1145# 1146# From Paul Eggert (2002-04-09): 1147# This is confirmed by the section entitled 1148# "What's the deal with time zones???" in 1149# http://www.earthsci.unimelb.edu.au/~awatkins/null.html 1150# 1151# From Alex Livingston (2006-12-07): 1152# ... it was just on four years ago that I drove along the Eyre Highway, 1153# which passes through eastern Western Australia close to the southern 1154# coast of the continent. 1155# 1156# I paid particular attention to the time kept there. There can be no 1157# dispute that UTC+08:45 was considered "the time" from the border 1158# village just inside the border with South Australia to as far west 1159# as just east of Caiguna. There can also be no dispute that Eucla is 1160# the largest population centre in this zone.... 1161# 1162# Now that Western Australia is observing daylight saving, the 1163# question arose whether this part of the state would follow suit. I 1164# just called the border village and confirmed that indeed they have, 1165# meaning that they are now observing UTC+09:45. 1166# 1167# (2006-12-09): 1168# I personally doubt that either experimentation with daylight saving 1169# in WA or its introduction in SA had anything to do with the genesis 1170# of this time zone. My hunch is that it's been around since well 1171# before 1975. I remember seeing it noted on road maps decades ago. 1172 1173# From Paul Eggert (2006-12-15): 1174# For lack of better info, assume the tradition dates back to the 1175# introduction of standard time in 1895. 1176 1177 1178# southeast Australia 1179# 1180# From Paul Eggert (2007-07-23): 1181# Starting autumn 2008 Victoria, NSW, South Australia, Tasmania and the ACT 1182# end DST the first Sunday in April and start DST the first Sunday in October. 1183# http://www.theage.com.au/news/national/daylight-savings-to-span-six-months/2007/06/27/1182623966703.html 1184 1185 1186# South Australia 1187 1188# From Bradley White (1991-03-04): 1189# A recent excerpt from an Australian newspaper... 1190# ...South Australia...[has] agreed to end daylight saving 1191# at 3am tomorrow (March 3)... 1192 1193# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1194# # The state of SOUTH AUSTRALIA....[ Courtesy of S.A. Dept of Labour ] 1195# # [ Nov 1990 ] 1196# ... 1197# Zone Australia/South 9:30 AS %sST 1198# ... 1199# Rule AS 1971 max - Oct lastSun 2:00 1:00 D 1200# Rule AS 1972 1985 - Mar Sun>=1 3:00 0 C 1201# Rule AS 1986 1990 - Mar Sun>=15 3:00 0 C 1202# Rule AS 1991 max - Mar Sun>=1 3:00 0 C 1203 1204# From Bradley White (1992-03-11): 1205# Recent correspondence with a friend in Adelaide 1206# contained the following exchange: "Due to the Adelaide Festival, 1207# South Australia delays setting back our clocks for a few weeks." 1208 1209# From Robert Elz (1992-03-13): 1210# I heard that apparently (or at least, it appears that) 1211# South Aus will have an extra 3 weeks daylight saving every even 1212# numbered year (from 1990). That's when the Adelaide Festival 1213# is on... 1214 1215# From Robert Elz (1992-03-16, 00:57:07 +1000): 1216# DST didn't end in Adelaide today (yesterday).... 1217# But whether it's "4th Sunday" or "2nd last Sunday" I have no idea whatever... 1218# (it's just as likely to be "the Sunday we pick for this year"...). 1219 1220# From Bradley White (1994-04-11): 1221# If Sun, 15 March, 1992 was at +1030 as kre asserts, but yet Sun, 20 March, 1222# 1994 was at +0930 as John Connolly's customer seems to assert, then I can 1223# only conclude that the actual rule is more complicated.... 1224 1225# From John Warburton (1994-10-07): 1226# The new Daylight Savings dates for South Australia ... 1227# was gazetted in the Government Hansard on Sep 26 1994.... 1228# start on last Sunday in October and end in last sunday in March. 1229 1230# From Paul Eggert (2007-07-23): 1231# See "southeast Australia" above for 2008 and later. 1232 1233# Tasmania 1234 1235# The rules for 1967 through 1991 were reported by George Shepherd 1236# via Simon Woodhead via Robert Elz (1991-03-06): 1237# # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ] 1238# # [ Nov 1990 ] 1239 1240# From Bill Hart via Guy Harris (1991-10-10): 1241# Oh yes, the new daylight savings rules are uniquely tasmanian, we have 1242# 6 weeks a year now when we are out of sync with the rest of Australia 1243# (but nothing new about that). 1244 1245# From Alex Livingston (1999-10-04): 1246# I heard on the ABC (Australian Broadcasting Corporation) radio news on the 1247# (long) weekend that Tasmania, which usually goes its own way in this regard, 1248# has decided to join with most of NSW, the ACT, and most of Victoria 1249# (Australia) and start daylight saving on the last Sunday in August in 2000 1250# instead of the first Sunday in October. 1251 1252# Sim Alam (2000-07-03) reported a legal citation for the 2000/2001 rules: 1253# http://www.thelaw.tas.gov.au/fragview/42++1968+GS3A@EN+2000070300 1254 1255# From Paul Eggert (2007-07-23): 1256# See "southeast Australia" above for 2008 and later. 1257 1258# Victoria 1259 1260# The rules for 1971 through 1991 were reported by George Shepherd 1261# via Simon Woodhead via Robert Elz (1991-03-06): 1262# # The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ] 1263# # [ Nov 1990 ] 1264 1265# From Scott Harrington (2001-08-29): 1266# On KQED's "City Arts and Lectures" program last night I heard an 1267# interesting story about daylight savings time. Dr. John Heilbron was 1268# discussing his book "The Sun in the Church: Cathedrals as Solar 1269# Observatories"[1], and in particular the Shrine of Remembrance[2] located 1270# in Melbourne, Australia. 1271# 1272# Apparently the shrine's main purpose is a beam of sunlight which 1273# illuminates a special spot on the floor at the 11th hour of the 11th day 1274# of the 11th month (Remembrance Day) every year in memory of Australia's 1275# fallen WWI soldiers. And if you go there on Nov. 11, at 11am local time, 1276# you will indeed see the sunbeam illuminate the special spot at the 1277# expected time. 1278# 1279# However, that is only because of some special mirror contraption that had 1280# to be employed, since due to daylight savings time, the true solar time of 1281# the remembrance moment occurs one hour later (or earlier?). Perhaps 1282# someone with more information on this jury-rig can tell us more. 1283# 1284# [1] http://www.hup.harvard.edu/catalog/HEISUN.html 1285# [2] http://www.shrine.org.au 1286 1287# From Paul Eggert (2007-07-23): 1288# See "southeast Australia" above for 2008 and later. 1289 1290# New South Wales 1291 1292# From Arthur David Olson: 1293# New South Wales and subjurisdictions have their own ideas of a fun time. 1294# Based on law library research by John Mackin, 1295# who notes: 1296# In Australia, time is not legislated federally, but rather by the 1297# individual states. Thus, while such terms as "Eastern Standard Time" 1298# [I mean, of course, Australian EST, not any other kind] are in common 1299# use, _they have NO REAL MEANING_, as they are not defined in the 1300# legislation. This is very important to understand. 1301# I have researched New South Wales time only... 1302 1303# From Eric Ulevik (1999-05-26): 1304# DST will start in NSW on the last Sunday of August, rather than the usual 1305# October in 2000. See: Matthew Moore, 1306# Two months more daylight saving, Sydney Morning Herald (1999-05-26). 1307# http://www.smh.com.au/news/9905/26/pageone/pageone4.html 1308 1309# From Paul Eggert (1999-09-27): 1310# See the following official NSW source: 1311# Daylight Saving in New South Wales. 1312# http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ 1313# 1314# Narrabri Shire (NSW) council has announced it will ignore the extension of 1315# daylight saving next year. See: 1316# Narrabri Council to ignore daylight saving 1317# http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm 1318# (1999-07-22). For now, we'll wait to see if this really happens. 1319# 1320# Victoria will following NSW. See: 1321# Vic to extend daylight saving (1999-07-28) 1322# http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm 1323# 1324# However, South Australia rejected the DST request. See: 1325# South Australia rejects Olympics daylight savings request (1999-07-19) 1326# http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm 1327# 1328# Queensland also will not observe DST for the Olympics. See: 1329# Qld says no to daylight savings for Olympics 1330# http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm 1331# (1999-06-01), which quotes Queensland Premier Peter Beattie as saying 1332# "Look you've got to remember in my family when this came up last time 1333# I voted for it, my wife voted against it and she said to me it's all very 1334# well for you, you don't have to worry about getting the children out of 1335# bed, getting them to school, getting them to sleep at night. 1336# I've been through all this argument domestically...my wife rules." 1337# 1338# Broken Hill will stick with South Australian time in 2000. See: 1339# Broken Hill to be behind the times (1999-07-21) 1340# http://abc.net.au/news/regionals/brokenh/monthly/regbrok-21jul1999-6.htm 1341 1342# IATA SSIM (1998-09) says that the spring 2000 change for Australian 1343# Capital Territory, New South Wales except Lord Howe Island and Broken 1344# Hill, and Victoria will be August 27, presumably due to the Sydney Olympics. 1345 1346# From Eric Ulevik, referring to Sydney's Sun Herald (2000-08-13), page 29: 1347# The Queensland Premier Peter Beattie is encouraging northern NSW 1348# towns to use Queensland time. 1349 1350# From Paul Eggert (2007-07-23): 1351# See "southeast Australia" above for 2008 and later. 1352 1353# Yancowinna 1354 1355# From John Mackin (1989-01-04): 1356# 'Broken Hill' means the County of Yancowinna. 1357 1358# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1359# # YANCOWINNA.. [ Confirmation courtesy of Broken Hill Postmaster ] 1360# # [ Dec 1990 ] 1361# ... 1362# # Yancowinna uses Central Standard Time, despite [its] location on the 1363# # New South Wales side of the S.A. border. Most business and social dealings 1364# # are with CST zones, therefore CST is legislated by local government 1365# # although the switch to Summer Time occurs in line with N.S.W. There have 1366# # been years when this did not apply, but the historical data is not 1367# # presently available. 1368# Zone Australia/Yancowinna 9:30 AY %sST 1369# ... 1370# Rule AY 1971 1985 - Oct lastSun 2:00 1:00 D 1371# Rule AY 1972 only - Feb lastSun 3:00 0 C 1372# [followed by other Rules] 1373 1374# Lord Howe Island 1375 1376# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1377# LHI... [ Courtesy of Pauline Van Winsen ] 1378# [ Dec 1990 ] 1379# Lord Howe Island is located off the New South Wales coast, and is half an 1380# hour ahead of NSW time. 1381 1382# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27): 1383# Lord Howe Island summer time in 2000/2001 will commence on the same 1384# date as the rest of NSW (i.e. 2000-08-27). For your information the 1385# Lord Howe Island Board (controlling authority for the Island) is 1386# seeking the community's views on various options for summer time 1387# arrangements on the Island, e.g. advance clocks by 1 full hour 1388# instead of only 30 minutes. [Dependent] on the wishes of residents 1389# the Board may approach the NSW government to change the existing 1390# arrangements. The starting date for summer time on the Island will 1391# however always coincide with the rest of NSW. 1392 1393# From James Lonergan, Secretary, Lord Howe Island Board (2000-10-25): 1394# Lord Howe Island advances clocks by 30 minutes during DST in NSW and retards 1395# clocks by 30 minutes when DST finishes. Since DST was most recently 1396# introduced in NSW, the "changeover" time on the Island has been 02:00 as 1397# shown on clocks on LHI. I guess this means that for 30 minutes at the start 1398# of DST, LHI is actually 1 hour ahead of the rest of NSW. 1399 1400# From Paul Eggert (2006-03-22): 1401# For Lord Howe dates we use Shanks & Pottenger through 1989, and 1402# Lonergan thereafter. For times we use Lonergan. 1403 1404# From Paul Eggert (2007-07-23): 1405# See "southeast Australia" above for 2008 and later. 1406 1407# From Steffen Thorsen (2009-04-28): 1408# According to the official press release, South Australia's extended daylight 1409# saving period will continue with the same rules as used during the 2008-2009 1410# summer (southern hemisphere). 1411# 1412# From 1413# http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf 1414# The extended daylight saving period that South Australia has been trialling 1415# for over the last year is now set to be ongoing. 1416# Daylight saving will continue to start on the first Sunday in October each 1417# year and finish on the first Sunday in April the following year. 1418# Industrial Relations Minister, Paul Caica, says this provides South Australia 1419# with a consistent half hour time difference with NSW, Victoria, Tasmania and 1420# the ACT for all 52 weeks of the year... 1421# 1422# We have a wrap-up here: 1423# http://www.timeanddate.com/news/time/south-australia-extends-dst.html 1424############################################################################### 1425 1426# New Zealand 1427 1428# From Mark Davies (1990-10-03): 1429# the 1989/90 year was a trial of an extended "daylight saving" period. 1430# This trial was deemed successful and the extended period adopted for 1431# subsequent years (with the addition of a further week at the start). 1432# source - phone call to Ministry of Internal Affairs Head Office. 1433 1434# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): 1435# # The Country of New Zealand (Australia's east island -) Gee they hate that! 1436# # or is Australia the west island of N.Z. 1437# # [ courtesy of Geoff Tribble.. Auckland N.Z. ] 1438# # [ Nov 1990 ] 1439# ... 1440# Rule NZ 1974 1988 - Oct lastSun 2:00 1:00 D 1441# Rule NZ 1989 max - Oct Sun>=1 2:00 1:00 D 1442# Rule NZ 1975 1989 - Mar Sun>=1 3:00 0 S 1443# Rule NZ 1990 max - Mar lastSun 3:00 0 S 1444# ... 1445# Zone NZ 12:00 NZ NZ%sT # New Zealand 1446# Zone NZ-CHAT 12:45 - NZ-CHAT # Chatham Island 1447 1448# From Arthur David Olson (1992-03-08): 1449# The chosen rules use the Davies October 8 values for the start of DST in 1989 1450# rather than the October 1 value. 1451 1452# From Paul Eggert (1995-12-19); 1453# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ. 1454# Robert Uzgalis writes that the New Zealand Daylight 1455# Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard 1456# time on both the first Sunday in October and the third Sunday in March. 1457# As with Australia, we'll assume the tradition is 2:00s, not 2:00. 1458# 1459# From Paul Eggert (2006-03-22): 1460# The Department of Internal Affairs (DIA) maintains a brief history, 1461# as does Carol Squires; see tz-link.htm for the full references. 1462# Use these sources in preference to Shanks & Pottenger. 1463# 1464# For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with 1465# transitions at 2:45 local standard time; this confirms that Chatham 1466# is always exactly 45 minutes ahead of Auckland. 1467 1468# From Colin Sharples (2007-04-30): 1469# DST will now start on the last Sunday in September, and end on the 1470# first Sunday in April. The changes take effect this year, meaning 1471# that DST will begin on 2007-09-30 2008-04-06. 1472# http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended 1473 1474# From Paul Eggert (2014-07-14): 1475# Chatham Island time was formally standardized on 1957-01-01 by 1476# New Zealand's Standard Time Amendment Act 1956 (1956-10-26). 1477# http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf 1478# According to Google Books snippet view, a speaker in the New Zealand 1479# parliamentary debates in 1956 said "Clause 78 makes provision for standard 1480# time in the Chatham Islands. The time there is 45 minutes in advance of New 1481# Zealand time. I understand that is the time they keep locally, anyhow." 1482# For now, assume this practice goes back to the introduction of standard time 1483# in New Zealand, as this would make Chatham Islands time almost exactly match 1484# LMT back when New Zealand was at UT +11:30; also, assume Chatham Islands did 1485# not observe New Zealand's prewar DST. 1486 1487############################################################################### 1488 1489 1490# Fiji 1491 1492# Howse writes (p 153) that in 1879 the British governor of Fiji 1493# enacted an ordinance standardizing the islands on Antipodean Time 1494# instead of the American system (which was one day behind). 1495 1496# From Rives McDow (1998-10-08): 1497# Fiji will introduce DST effective 0200 local time, 1998-11-01 1498# until 0300 local time 1999-02-28. Each year the DST period will 1499# be from the first Sunday in November until the last Sunday in February. 1500 1501# From Paul Eggert (2000-01-08): 1502# IATA SSIM (1999-09) says DST ends 0100 local time. Go with McDow. 1503 1504# From the BBC World Service in 1505# http://news.bbc.co.uk/2/hi/asia-pacific/205226.stm (1998-10-31 16:03 UTC): 1506# The Fijian government says the main reasons for the time change is to 1507# improve productivity and reduce road accidents.... [T]he move is also 1508# intended to boost Fiji's ability to attract tourists to witness the dawning 1509# of the new millennium. 1510 1511# http://www.fiji.gov.fj/press/2000_09/2000_09_13-05.shtml (2000-09-13) 1512# reports that Fiji has discontinued DST. 1513 1514 1515# Kiribati 1516 1517# From Paul Eggert (1996-01-22): 1518# Today's _Wall Street Journal_ (page 1) reports that Kiribati 1519# "declared it the same day [throughout] the country as of Jan. 1, 1995" 1520# as part of the competition to be first into the 21st century. 1521 1522 1523# Kwajalein 1524 1525# In comp.risks 14.87 (26 August 1993), Peter Neumann writes: 1526# I wonder what happened in Kwajalein, where there was NO Friday, 1527# 1993-08-20. Thursday night at midnight Kwajalein switched sides with 1528# respect to the International Date Line, to rejoin its fellow islands, 1529# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink. 1530 1531 1532# N Mariana Is, Guam 1533 1534# Howse writes (p 153) "The Spaniards, on the other hand, reached the 1535# Philippines and the Ladrones from America," and implies that the Ladrones 1536# (now called the Marianas) kept American date for quite some time. 1537# For now, we assume the Ladrones switched at the same time as the Philippines; 1538# see Asia/Manila. 1539 1540# US Public Law 106-564 (2000-12-23) made UT +10 the official standard time, 1541# under the name "Chamorro Standard Time". There is no official abbreviation, 1542# but Congressman Robert A. Underwood, author of the bill that became law, 1543# wrote in a press release (2000-12-27) that he will seek the use of "ChST". 1544 1545 1546# Micronesia 1547 1548# Alan Eugene Davis writes (1996-03-16), 1549# "I am certain, having lived there for the past decade, that 'Truk' 1550# (now properly known as Chuuk) ... is in the time zone GMT+10." 1551# 1552# Shanks & Pottenger write that Truk switched from UT +10 to +11 1553# on 1978-10-01; ignore this for now. 1554 1555# From Paul Eggert (1999-10-29): 1556# The Federated States of Micronesia Visitors Board writes in 1557# The Federated States of Micronesia - Visitor Information (1999-01-26) 1558# http://www.fsmgov.org/info/clocks.html 1559# that Truk and Yap are UT +10, and Ponape and Kosrae are +11. 1560# We don't know when Kosrae switched from +12; assume January 1 for now. 1561 1562 1563# Midway 1564 1565# From Charles T O'Connor, KMTH DJ (1956), 1566# quoted in the KTMH section of the Radio Heritage Collection 1567# <http://radiodx.com/spdxr/KMTH.htm> (2002-12-31): 1568# For the past two months we've been on what is known as Daylight 1569# Saving Time. This time has put us on air at 5am in the morning, 1570# your time down there in New Zealand. Starting September 2, 1956 1571# we'll again go back to Standard Time. This'll mean that we'll go to 1572# air at 6am your time. 1573# 1574# From Paul Eggert (2003-03-23): 1575# We don't know the date of that quote, but we'll guess they 1576# started DST on June 3. Possibly DST was observed other years 1577# in Midway, but we have no record of it. 1578 1579# Norfolk 1580 1581# From Alexander Krivenyshev (2015-09-23): 1582# Norfolk Island will change ... from +1130 to +1100: 1583# https://www.comlaw.gov.au/Details/F2015L01483/Explanatory%20Statement/Text 1584# ... at 12.30 am (by legal time in New South Wales) on 4 October 2015. 1585# http://www.norfolkisland.gov.nf/nia/MediaRelease/Media%20Release%20Norfolk%20Island%20Standard%20Time%20Change.pdf 1586 1587# From Paul Eggert (2015-09-23): 1588# Transitions before 2015 are from timeanddate.com, which consulted 1589# the Norfolk Island Museum and the Australian Bureau of Meteorology's 1590# Norfolk Island station, and found no record of Norfolk observing DST 1591# other than in 1974/5. See: 1592# http://www.timeanddate.com/time/australia/norfolk-island.html 1593 1594# Pitcairn 1595 1596# From Rives McDow (1999-11-08): 1597# A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998 1598# with regard to Pitcairn Standard Time. The Proclamation is as follows. 1599# 1600# The local time for general purposes in the Islands shall be 1601# Co-ordinated Universal time minus 8 hours and shall be known 1602# as Pitcairn Standard Time. 1603# 1604# ... I have also seen Pitcairn listed as UTC minus 9 hours in several 1605# references, and can only assume that this was an error in interpretation 1606# somehow in light of this proclamation. 1607 1608# From Rives McDow (1999-11-09): 1609# The Proclamation regarding Pitcairn time came into effect on 27 April 1998 1610# ... at midnight. 1611 1612# From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave: 1613# Betty Christian told me yesterday that their local time is the same as 1614# Pacific Standard Time. They used to be 1/2 hour different from us here in 1615# Sacramento but it was changed a couple of years ago. 1616 1617 1618# (Western) Samoa and American Samoa 1619 1620# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald) 1621# that in 1879 the King of Samoa decided to change 1622# "the date in his kingdom from the Antipodean to the American system, 1623# ordaining - by a masterpiece of diplomatic flattery - that 1624# the Fourth of July should be celebrated twice in that year." 1625 1626# Although Shanks & Pottenger says they both switched to UT -11:30 1627# in 1911, and to -11 in 1950. many earlier sources give -11 1628# for American Samoa, e.g., the US National Bureau of Standards 1629# circular "Standard Time Throughout the World", 1932. 1630# Assume American Samoa switched to -11 in 1911, not 1950, 1631# and that after 1950 they agreed until (western) Samoa skipped a 1632# day in 2011. Assume also that the Samoas follow the US and New 1633# Zealand's "ST"/"DT" style of daylight-saving abbreviations. 1634 1635# Tonga 1636 1637# From Paul Eggert (1996-01-22): 1638# Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting 1639# to sneak ahead of [New Zealanders] by introducing daylight-saving time." 1640# Since Kiribati has moved the Date Line it's not clear what Tonga will do. 1641 1642# Don Mundell writes in the 1997-02-20 Tonga Chronicle 1643# How Tonga became 'The Land where Time Begins': 1644# http://www.tongatapu.net.to/tonga/homeland/timebegins.htm 1645# 1646# Until 1941 Tonga maintained a standard time 50 minutes ahead of NZST 1647# 12 hours and 20 minutes ahead of GMT. When New Zealand adjusted its 1648# standard time in 1940s, Tonga had the choice of subtracting from its 1649# local time to come on the same standard time as New Zealand or of 1650# advancing its time to maintain the differential of 13 degrees 1651# (approximately 50 minutes ahead of New Zealand time). 1652# 1653# Because His Majesty King T��ufa����hau Tupou IV, then Crown Prince 1654# Tung��, preferred to ensure Tonga's title as the land where time 1655# begins, the Legislative Assembly approved the latter change. 1656# 1657# But some of the older, more conservative members from the outer 1658# islands objected. "If at midnight on Dec. 31, we move ahead 40 1659# minutes, as your Royal Highness wishes, what becomes of the 40 1660# minutes we have lost?" 1661# 1662# The Crown Prince, presented an unanswerable argument: "Remember that 1663# on the World Day of Prayer, you would be the first people on Earth 1664# to say your prayers in the morning." 1665 1666# From Paul Eggert (2006-03-22): 1667# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell. 1668 1669# From Eric Ulevik (1999-05-03): 1670# Tonga's director of tourism, who is also secretary of the National Millennium 1671# Committee, has a plan to get Tonga back in front. 1672# He has proposed a one-off move to tropical daylight saving for Tonga from 1673# October to March, which has won approval in principle from the Tongan 1674# Government. 1675 1676# From Steffen Thorsen (1999-09-09): 1677# * Tonga will introduce DST in November 1678# 1679# I was given this link by John Letts: 1680# http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm 1681# 1682# I have not been able to find exact dates for the transition in November 1683# yet. By reading this article it seems like Fiji will be 14 hours ahead 1684# of UTC as well, but as far as I know Fiji will only be 13 hours ahead 1685# (12 + 1 hour DST). 1686 1687# From Arthur David Olson (1999-09-20): 1688# According to <http://www.tongaonline.com/news/sept1799.html>: 1689# "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000 1690# and annually thereafter from the first Saturday in October through the 1691# third Saturday of April. Under the system approved by Privy Council on 1692# Sept. 10, clocks must be turned ahead one hour on the opening day and 1693# set back an hour on the closing date." 1694# Alas, no indication of the time of day. 1695 1696# From Rives McDow (1999-10-06): 1697# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am. 1698# Daylight Saving ends on April 16 at 0300am which is Sunday morning. 1699 1700# From Steffen Thorsen (2000-10-31): 1701# Back in March I found a notice on the website http://www.tongaonline.com 1702# that Tonga changed back to standard time one month early, on March 19 1703# instead of the original reported date April 16. Unfortunately, the article 1704# is no longer available on the site, and I did not make a copy of the 1705# text, and I have forgotten to report it here. 1706# (Original URL was <http://www.tongaonline.com/news/march162000.htm>) 1707 1708# From Rives McDow (2000-12-01): 1709# Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27. 1710 1711# From Sione Moala-Mafi (2001-09-20) via Rives McDow: 1712# At 2:00am on the first Sunday of November, the standard time in the Kingdom 1713# shall be moved forward by one hour to 3:00am. At 2:00am on the last Sunday 1714# of January the standard time in the Kingdom shall be moved backward by one 1715# hour to 1:00am. 1716 1717# From Pulu ��Anau (2002-11-05): 1718# The law was for 3 years, supposedly to get renewed. It wasn't. 1719 1720# From Pulu ��Anau (2016-10-27): 1721# http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017 1722# Cannot find anyone who knows the rules, has seen the duration or has seen 1723# the cabinet decision, but it appears we are following Fiji's rule set. 1724# 1725# From Tim Parenti (2016-10-26): 1726# Assume Tonga will observe DST from the first Sunday in November at 02:00 1727# through the third Sunday in January at 03:00, like Fiji, for now. 1728 1729# Wake 1730 1731# From Vernice Anderson, Personal Secretary to Philip Jessup, 1732# US Ambassador At Large (oral history interview, 1971-02-02): 1733# 1734# Saturday, the 14th [of October, 1950] - ... The time was all the 1735# more confusing at that point, because we had crossed the 1736# International Date Line, thus getting two Sundays. Furthermore, we 1737# discovered that Wake Island had two hours of daylight saving time 1738# making calculation of time in Washington difficult if not almost 1739# impossible. 1740# 1741# http://www.trumanlibrary.org/wake/meeting.htm 1742 1743# From Paul Eggert (2003-03-23): 1744# We have no other report of DST in Wake Island, so omit this info for now. 1745 1746############################################################################### 1747 1748# The International Date Line 1749 1750# From Gwillim Law (2000-01-03): 1751# 1752# The International Date Line is not defined by any international standard, 1753# convention, or treaty. Mapmakers are free to draw it as they please. 1754# Reputable mapmakers will simply ensure that every point of land appears on 1755# the correct side of the IDL, according to the date legally observed there. 1756# 1757# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and 1758# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL 1759# to the east side of the Phoenix and Line Islands), I suppose that most 1760# mapmakers redrew the IDL following the boundary of Kiribati. Even that line 1761# has a rather arbitrary nature. The straight-line boundaries between Pacific 1762# island nations that are shown on many maps are based on an international 1763# convention, but are not legally binding national borders.... The date is 1764# governed by the IDL; therefore, even on the high seas, there may be some 1765# places as late as fourteen hours later than UTC. And, since the IDL is not 1766# an international standard, there are some places on the high seas where the 1767# correct date is ambiguous. 1768 1769# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31): 1770# Before 1920, all ships kept local apparent time on the high seas by setting 1771# their clocks at night or at the morning sight so that, given the ship's 1772# speed and direction, it would be 12 o'clock when the Sun crossed the ship's 1773# meridian (12 o'clock = local apparent noon). During 1917, at the 1774# Anglo-French Conference on Time-keeping at Sea, it was recommended that all 1775# ships, both military and civilian, should adopt hourly standard time zones 1776# on the high seas. Whenever a ship was within the territorial waters of any 1777# nation it would use that nation's standard time. The captain was permitted 1778# to change his ship's clocks at a time of his choice following his ship's 1779# entry into another zone time - he often chose midnight. These zones were 1780# adopted by all major fleets between 1920 and 1925 but not by many 1781# independent merchant ships until World War II. 1782 1783# From Paul Eggert, using references suggested by Oscar van Vlijmen 1784# (2005-03-20): 1785# 1786# The American Practical Navigator (2002) 1787# http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187 1788# talks only about the 180-degree meridian with respect to ships in 1789# international waters; it ignores the international date line. 1790