pike.git / lib / modules / Calendar.pmod / tzdata / australasia

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pike.git/lib/modules/Calendar.pmod/tzdata/australasia:286:   # From Steffen Thorsen (2010-03-03):   # The Cabinet in Fiji has decided to end DST about a month early, on   # 2010-03-28 at 03:00.   # The plan is to observe DST again, from 2010-10-24 to sometime in March   # 2011 (last Sunday a good guess?).   #   # Official source:   # 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   #   # A bit more background info here: - # http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html + # https://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html      # From Alexander Krivenyshev (2010-10-24):   # According to Radio Fiji and Fiji Times online, Fiji will end DST 3   # weeks earlier than expected - on March 6, 2011, not March 27, 2011...   # Here is confirmation from Government of the Republic of the Fiji Islands,   # Ministry of Information (fiji.gov.fj) web site:   # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:daylight-savings&catid=71:press-releases&Itemid=155   # http://www.worldtimezone.com/dst_news/dst_news_fiji04.html      # From Steffen Thorsen (2011-10-03):
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:350:   # the daylight saving period is 1 hour in advance of the standard time   # commencing at 2.00 am on Sunday 1st November, 2015 and ending at   # 3.00 am on Sunday 17th January, 2016.      # From Raymond Kumar (2016-10-04):   # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-6th-NOVEMBER,-2016.aspx   # "Fiji's daylight savings will begin on Sunday, 6 November 2016, when   # clocks go forward an hour at 2am to 3am.... Daylight Saving will   # end at 3.00am on Sunday 15th January 2017."    - # From Paul Eggert (2016-10-03): - # For now, guess DST from 02:00 the first Sunday in November to - # 03:00 the third Sunday in January. Although ad hoc, it matches + # From Paul Eggert (2017-08-21): + # Dominic Fok writes (2017-08-20) that DST ends 2018-01-14, citing + # Extraordinary Government of Fiji Gazette Supplement No. 21 (2017-08-27), + # [Legal Notice No. 41] of an order of the previous day by J Usamate. + # For now, guess DST from 02:00 the first Sunday in November to 03:00 + # the first Sunday on or after January 14. Although ad hoc, it matches   # transitions since late 2014 and seems more likely to match future   # practice than guessing no DST.      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S   Rule Fiji 1999 2000 - Feb lastSun 3:00 0 -   Rule Fiji 2009 only - Nov 29 2:00 1:00 S   Rule Fiji 2010 only - Mar lastSun 3:00 0 -   Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 S   Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -   Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 -   Rule Fiji 2014 only - Jan Sun>=18 2:00 0 -   Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 S - Rule Fiji 2015 max - Jan Sun>=15 3:00 0 - + Rule Fiji 2015 max - Jan Sun>=14 3:00 0 -   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva    12:00 Fiji +12/+13      # French Polynesia   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea    -9:00 - -09   Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct    -9:30 - -0930
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:550:   #   # From Paul Eggert (2014-10-13):   # Base the Bougainville entry on the Arawa-Kieta region, which appears to have   # the most people even though it was devastated in the Bougainville Civil War.   #   # Although Shanks gives 1942-03-15 / 1943-11-01 for UT +09, these dates   # are apparently rough guesswork from the starts of military campaigns.   # The World War II entries below are instead based on Arawa-Kieta.   # The Japanese occupied Kieta in July 1942,   # according to the Pacific War Online Encyclopedia - # http://pwencycl.kgbudge.com/B/o/Bougainville.htm + # https://pwencycl.kgbudge.com/B/o/Bougainville.htm   # and seem to have controlled it until their 1945-08-21 surrender.   #   # The Autonomous Region of Bougainville switched from UT +10 to +11   # on 2014-12-28 at 02:00. They call +11 "Bougainville Standard Time".   # See:   # http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/   #   Zone Pacific/Bougainville 10:22:16 - LMT 1880    9:48:32 - PMMT 1895    10:00 - +10 1942 Jul
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:572:    10:00 - +10 2014 Dec 28 2:00    11:00 - +11      # Pitcairn   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown    -8:30 - -0830 1998 Apr 27 0:00    -8:00 - -08      # American Samoa - Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5 + Zone Pacific/Pago_Pago 12:37:12 - LMT 1892 Jul 5    -11:22:48 - LMT 1911    -11:00 - SST # S=Samoa   Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands      # Samoa (formerly and also known as Western Samoa)      # From Steffen Thorsen (2009-10-16):   # We have been in contact with the government of Samoa again, and received   # the following info:   #   # "Cabinet has now approved Daylight Saving to be effected next year   # commencing from the last Sunday of September 2010 and conclude first   # Sunday of April 2011."   #   # Background info: - # http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html + # https://www.timeanddate.com/news/time/samoa-dst-plan-2009.html   #   # Samoa's Daylight Saving Time Act 2009 is available here, but does not   # contain any dates:   # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf      # From Laupue Raymond Hughes (2010-10-07):   # Please see   # http://www.mcil.gov.ws   # the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday   # September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:652:   # That web page currently lists transitions for 2012/3 and 2013/4.   # Assume the pattern instituted in 2012 will continue indefinitely.      # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule WS 2010 only - Sep lastSun 0:00 1 D   Rule WS 2011 only - Apr Sat>=1 4:00 0 S   Rule WS 2011 only - Sep lastSat 3:00 1 D   Rule WS 2012 max - Apr Sun>=1 4:00 0 S   Rule WS 2012 max - Sep lastSun 3:00 1 D   # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 + Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5    -11:26:56 - LMT 1911    -11:30 - -1130 1950    -11:00 WS -11/-10 2011 Dec 29 24:00    13:00 WS +13/+14      # Solomon Is   # excludes Bougainville, for which see Papua New Guinea   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara    11:00 - +11
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:679:   #   # From Steffen Thorsen (2012-07-25)   # ... we double checked by calling hotels and offices based in Tokelau asking   # about the time there, and they all told a time that agrees with UTC+13....   # Shanks says UTC-10 from 1901 [but] ... there is a good chance the change   # actually was to UTC-11 back then.   #   # From Paul Eggert (2012-07-25)   # A Google Books snippet of Appendix to the Journals of the House of   # Representatives of New Zealand, Session 1948, - # <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau + # <https://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau   # was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger   # are off by an hour starting in 1901.      # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Fakaofo -11:24:56 - LMT 1901    -11:00 - -11 2011 Dec 30    13:00 - +13      # Tonga   # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S   Rule Tonga 1999 only - Oct 7 2:00s 1:00 S   Rule Tonga 2000 only - Mar 19 2:00s 0 -   Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S   Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - - Rule Tonga 2016 max - Nov Sun>=1 2:00 1:00 S - Rule Tonga 2017 max - Jan Sun>=15 3:00 0 - + Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 S + Rule Tonga 2017 only - Jan Sun>=15 3:00 0 -   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Tongatapu 12:19:20 - LMT 1901    12:20 - +1220 1941    13:00 - +13 1999    13:00 Tonga +13/+14      # Tuvalu   # Zone NAME GMTOFF RULES FORMAT [UNTIL]   Zone Pacific/Funafuti 11:56:52 - LMT 1901    12:00 - +12
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:749:   # confirms that Johnston kept the same time as Honolulu in summer 1945.   #   # From Lyle McElhaney (2014-03-11):   # [W]hen JI was being used for that [atomic bomb] testing, the time being used   # was not Hawaiian time but rather the same time being used on the ships,   # which had a GMT offset of -11 hours. This apparently applied to at least the   # time from Operation Newsreel (Hardtack I/Teak shot, 1958-08-01) to the last   # Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin,   # "The United States High-Altitude Test Experience: A Review Emphasizing the   # Impact on the Environment", Los Alamos LA-6405, Oct 1976. - # http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf + # https://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf   # See the table on page 4 where he lists GMT and local times for the tests; a   # footnote for the JI tests reads that local time is "JI time = Hawaii Time   # Minus One Hour".      # Kingman   # uninhabited      # Midway   # See Pacific/Pago_Pago.   
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:815:   # published semiannually. Law sent in several helpful summaries   # of the IATA's data after 1990. Except where otherwise noted,   # IATA SSIM is the source for entries after 1990.   #   # Another source occasionally used is Edward W. Whitman, World Time Differences,   # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which   # I found in the UCLA library.   #   # For data circa 1899, a common source is:   # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. - # http://www.jstor.org/stable/1774359 + # https://www.jstor.org/stable/1774359   #   # A reliable and entertaining source about time zones is   # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).   #   # The following abbreviations are from other sources.   # Corrections are welcome!   # std dst   # LMT Local Mean Time   # 8:00 AWST AWDT Western Australia   # 9:30 ACST ACDT Central Australia
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:962:   #   # Civil Aviation Safety Authority (undated)   # http://services.casa.gov.au/outnback/inc/pages/episode3/episode-3_time_zones.shtml   # EST CST WST (no abbreviations given for DST)   #   # Geoscience Australia (2011-11-24)   # http://www.ga.gov.au/geodesy/astro/sunrise.jsp   # AEST ACST AWST AEDT ACDT   #   # Parliamentary Library (2008-11-10) - # http://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf + # https://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf   # EST CST WST preferred for standard time; AEST AEDT ACST ACDT also used   #   # The Transport Safety Bureau has an extensive series of accident reports,   # and investigators seem to use whatever abbreviation they like.   # Googling site:atsb.gov.au found the following number of unique hits:   # 311 "ESuT", 195 "EDT", 26 "AEDT", 83 "CSuT", 46 "CDT".   # "_SuT" tended to appear in older reports, and "A_DT" tended to   # appear in reports of events with international implications.   #   # From the above it appears that there is a working consensus in
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:998:   # For now we'll continue to assume 2:00s for changes since 1960.      # From Eric Ulevik (1998-01-05):   #   # Here are some URLs to Australian time legislation. These URLs are stable,   # and should probably be included in the data file. There are probably more   # relevant entries in this database.   #   # NSW (including LHI and Broken Hill):   # Standard Time Act 1987 (updated 1995-04-04) - # http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html + # https://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html   # ACT   # Standard Time and Summer Time Act 1972 - # http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html + # https://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html   # SA   # Standard Time Act, 1898 - # http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html + # https://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html      # From David Grosz (2005-06-13):   # It was announced last week that Daylight Saving would be extended by   # one week next year to allow for the 2006 Commonwealth Games.   # Daylight Saving is now to end for next year only on the first Sunday   # in April instead of the last Sunday in March.   #   # From Gwillim Law (2005-06-14):   # I did some Googling and found that all of those states (and territory) plan   # to extend DST together in 2006.
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1299:   # See the following official NSW source:   # Daylight Saving in New South Wales.   # http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/tigGmZ   #   # Narrabri Shire (NSW) council has announced it will ignore the extension of   # daylight saving next year. See:   # Narrabri Council to ignore daylight saving   # http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm   # (1999-07-22). For now, we'll wait to see if this really happens.   # - # Victoria will following NSW. See: + # Victoria will follow NSW. See:   # Vic to extend daylight saving (1999-07-28)   # http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm   #   # However, South Australia rejected the DST request. See:   # South Australia rejects Olympics daylight savings request (1999-07-19)   # http://abc.net.au/news/olympics/1999/07/item19990719151754_1.htm   #   # Queensland also will not observe DST for the Olympics. See:   # Qld says no to daylight savings for Olympics   # http://abc.net.au/news/olympics/1999/06/item19990601114608_1.htm
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1402:   # http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf   # The extended daylight saving period that South Australia has been trialling   # for over the last year is now set to be ongoing.   # Daylight saving will continue to start on the first Sunday in October each   # year and finish on the first Sunday in April the following year.   # Industrial Relations Minister, Paul Caica, says this provides South Australia   # with a consistent half hour time difference with NSW, Victoria, Tasmania and   # the ACT for all 52 weeks of the year...   #   # We have a wrap-up here: - # http://www.timeanddate.com/news/time/south-australia-extends-dst.html + # https://www.timeanddate.com/news/time/south-australia-extends-dst.html   ###############################################################################      # New Zealand      # From Mark Davies (1990-10-03):   # the 1989/90 year was a trial of an extended "daylight saving" period.   # This trial was deemed successful and the extended period adopted for   # subsequent years (with the addition of a further week at the start).   # source - phone call to Ministry of Internal Affairs Head Office.   
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1456:      # From Colin Sharples (2007-04-30):   # DST will now start on the last Sunday in September, and end on the   # first Sunday in April. The changes take effect this year, meaning   # that DST will begin on 2007-09-30 2008-04-06.   # http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Services-Daylight-Saving-Daylight-saving-to-be-extended      # From Paul Eggert (2014-07-14):   # Chatham Island time was formally standardized on 1957-01-01 by   # New Zealand's Standard Time Amendment Act 1956 (1956-10-26). - # http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf + # https://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf   # According to Google Books snippet view, a speaker in the New Zealand   # parliamentary debates in 1956 said "Clause 78 makes provision for standard   # time in the Chatham Islands. The time there is 45 minutes in advance of New   # Zealand time. I understand that is the time they keep locally, anyhow."   # For now, assume this practice goes back to the introduction of standard time   # in New Zealand, as this would make Chatham Islands time almost exactly match   # LMT back when New Zealand was at UT +11:30; also, assume Chatham Islands did   # not observe New Zealand's prewar DST.      ###############################################################################
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1571:   # Norfolk Island will change ... from +1130 to +1100:   # https://www.comlaw.gov.au/Details/F2015L01483/Explanatory%20Statement/Text   # ... at 12.30 am (by legal time in New South Wales) on 4 October 2015.   # http://www.norfolkisland.gov.nf/nia/MediaRelease/Media%20Release%20Norfolk%20Island%20Standard%20Time%20Change.pdf      # From Paul Eggert (2015-09-23):   # Transitions before 2015 are from timeanddate.com, which consulted   # the Norfolk Island Museum and the Australian Bureau of Meteorology's   # Norfolk Island station, and found no record of Norfolk observing DST   # other than in 1974/5. See: - # http://www.timeanddate.com/time/australia/norfolk-island.html + # https://www.timeanddate.com/time/australia/norfolk-island.html      # Pitcairn      # From Rives McDow (1999-11-08):   # A Proclamation was signed by the Governor of Pitcairn on the 27th March 1998   # with regard to Pitcairn Standard Time. The Proclamation is as follows.   #   # The local time for general purposes in the Islands shall be   # Co-ordinated Universal time minus 8 hours and shall be known   # as Pitcairn Standard Time.
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1599:   # ... at midnight.      # From Howie Phelps (1999-11-10), who talked to a Pitcairner via shortwave:   # Betty Christian told me yesterday that their local time is the same as   # Pacific Standard Time. They used to be 1/2 hour different from us here in   # Sacramento but it was changed a couple of years ago.         # (Western) Samoa and American Samoa    - # Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald) - # that in 1879 the King of Samoa decided to change + # Howse writes (p 153) that after the 1879 standardization on Antipodean + # time by the British governor of Fiji, the King of Samoa decided to change   # "the date in his kingdom from the Antipodean to the American system,   # ordaining - by a masterpiece of diplomatic flattery - that   # the Fourth of July should be celebrated twice in that year." -  + # This happened in 1892, according to the Evening News (Sydney) of 1892-07-20. + # https://www.staff.science.uu.nl/~gent0113/idl/idl.htm      # Although Shanks & Pottenger says they both switched to UT -11:30   # in 1911, and to -11 in 1950. many earlier sources give -11   # for American Samoa, e.g., the US National Bureau of Standards   # circular "Standard Time Throughout the World", 1932.   # Assume American Samoa switched to -11 in 1911, not 1950,   # and that after 1950 they agreed until (western) Samoa skipped a   # day in 2011. Assume also that the Samoas follow the US and New   # Zealand's "ST"/"DT" style of daylight-saving abbreviations.    -  +    # Tonga      # From Paul Eggert (1996-01-22):   # Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting   # to sneak ahead of [New Zealanders] by introducing daylight-saving time."   # Since Kiribati has moved the Date Line it's not clear what Tonga will do.      # Don Mundell writes in the 1997-02-20 Tonga Chronicle   # How Tonga became 'The Land where Time Begins':   # http://www.tongatapu.net.to/tonga/homeland/timebegins.htm
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1708:      # From Pulu  ĽAnau (2016-10-27):   # http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017   # Cannot find anyone who knows the rules, has seen the duration or has seen   # the cabinet decision, but it appears we are following Fiji's rule set.   #   # From Tim Parenti (2016-10-26):   # Assume Tonga will observe DST from the first Sunday in November at 02:00   # through the third Sunday in January at 03:00, like Fiji, for now.    + # From David Wade (2017-10-18): + # In August government was disolved by the King. The current prime minister + # continued in office in care taker mode. It is easy to see that few + # decisions will be made until elections 16th November. + # + # From Paul Eggert (2017-10-18): + # For now, guess that DST is discontinued. That's what the IATA is guessing. +  +    # Wake      # From Vernice Anderson, Personal Secretary to Philip Jessup,   # US Ambassador At Large (oral history interview, 1971-02-02):   #   # Saturday, the 14th [of October, 1950] - ... The time was all the   # more confusing at that point, because we had crossed the   # International Date Line, thus getting two Sundays. Furthermore, we   # discovered that Wake Island had two hours of daylight saving time   # making calculation of time in Washington difficult if not almost   # impossible.   # - # http://www.trumanlibrary.org/wake/meeting.htm + # https://www.trumanlibrary.org/oralhist/andrsonv.htm      # From Paul Eggert (2003-03-23):   # We have no other report of DST in Wake Island, so omit this info for now.      ###############################################################################      # The International Date Line      # From Gwillim Law (2000-01-03):   #
pike.git/lib/modules/Calendar.pmod/tzdata/australasia:1748:   # to the east side of the Phoenix and Line Islands), I suppose that most   # mapmakers redrew the IDL following the boundary of Kiribati. Even that line   # has a rather arbitrary nature. The straight-line boundaries between Pacific   # island nations that are shown on many maps are based on an international   # convention, but are not legally binding national borders.... The date is   # governed by the IDL; therefore, even on the high seas, there may be some   # places as late as fourteen hours later than UTC. And, since the IDL is not   # an international standard, there are some places on the high seas where the   # correct date is ambiguous.    - # From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31): + # From Wikipedia <https://en.wikipedia.org/wiki/Time_zone> (2005-08-31):   # Before 1920, all ships kept local apparent time on the high seas by setting   # their clocks at night or at the morning sight so that, given the ship's   # speed and direction, it would be 12 o'clock when the Sun crossed the ship's   # meridian (12 o'clock = local apparent noon). During 1917, at the   # Anglo-French Conference on Time-keeping at Sea, it was recommended that all   # ships, both military and civilian, should adopt hourly standard time zones   # on the high seas. Whenever a ship was within the territorial waters of any   # nation it would use that nation's standard time. The captain was permitted   # to change his ship's clocks at a time of his choice following his ship's   # entry into another zone time - he often chose midnight. These zones were   # adopted by all major fleets between 1920 and 1925 but not by many   # independent merchant ships until World War II.      # From Paul Eggert, using references suggested by Oscar van Vlijmen   # (2005-03-20):   #   # The American Practical Navigator (2002)   # http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187   # talks only about the 180-degree meridian with respect to ships in   # international waters; it ignores the international date line.