161 # From Arthur David Olson, 2005-12-19
162 # We generate the files specified below to guard against old files with
163 # obsolete information being left in the time zone binary directory.
164 # We limit the list to names that have appeared in previous versions of
165 # this time zone package.
166 # We do these as separate Zones rather than as Links to avoid problems if
167 # a particular place changes whether it observes DST.
168 # We put these specifications here in the northamerica file both to
169 # increase the chances that they'll actually get compiled and to
170 # avoid the need to duplicate the US rules in another file.
171
172 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
173 Zone EST -5:00 - EST
174 Zone MST -7:00 - MST
175 Zone HST -10:00 - HST
176 Zone EST5EDT -5:00 US E%sT
177 Zone CST6CDT -6:00 US C%sT
178 Zone MST7MDT -7:00 US M%sT
179 Zone PST8PDT -8:00 US P%sT
180
181 # From Bob Devine (1988-01-28):
182 # ...Alaska (and Hawaii) had the timezone names changed in 1967.
183 # old new
184 # Pacific Standard Time(PST) -same-
185 # Yukon Standard Time(YST) -same-
186 # Central Alaska S.T. (CAT) Alaska-Hawaii St[an]dard Time (AHST)
187 # Nome Standard Time (NT) Bering Standard Time (BST)
188 #
189 # ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.
190 # The YST zone now covers nearly all of the state, AHST just part
191 # of the Aleutian islands. No DST.
192
193 # From Paul Eggert (1995-12-19):
194 # The tables below use 'NST', not 'NT', for Nome Standard Time.
195 # I invented 'CAWT' for Central Alaska War Time.
196
197 # From U. S. Naval Observatory (1989-01-19):
198 # USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON
199 # USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30
200 # USA CENTRAL 6 H BEHIND UTC CHICAGO, HOUSTON
201 # USA CENTRAL 5 H BEHIND UTC APR 3 - OCT 30
202 # USA MOUNTAIN 7 H BEHIND UTC DENVER
203 # USA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 30
204 # USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
205 # USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
206 # USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
207 # USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
208 # USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
209 # USA " 9 H BEHIND UTC APR 3 - OCT 30
210 # USA HAWAII 10 H BEHIND UTC
211 # USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
212
213 # From Arthur David Olson (1989-01-21):
214 # The above dates are for 1988.
215 # Note the "AKST" and "AKDT" abbreviations, the claim that there's
216 # no DST in Samoa, and the claim that there is DST in Alaska and the
233 # public law 98-181):
234 # Atlantic standard time
235 # eastern standard time
236 # central standard time
237 # mountain standard time
238 # Pacific standard time
239 # Yukon standard time
240 # Alaska-Hawaii standard time
241 # Bering standard time
242 # And after 1983-11-30:
243 # Atlantic standard time
244 # eastern standard time
245 # central standard time
246 # mountain standard time
247 # Pacific standard time
248 # Alaska standard time
249 # Hawaii-Aleutian standard time
250 # Samoa standard time
251 # The law doesn't give abbreviations.
252 #
253 # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
254 # Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
255 # for time in Guam and the Northern Marianas. See the file "australasia".
256 #
257 # From Paul Eggert (2015-04-17):
258 # HST and HDT are standardized abbreviations for Hawaii-Aleutian
259 # standard and daylight times. See section 9.47 (p 234) of the
260 # U.S. Government Printing Office Style Manual (2008)
261 # http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
262
263 # From Arthur David Olson, 2005-08-09
264 # The following was signed into law on 2005-08-08.
265 #
266 # H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
267 # (a) Amendment.--Section 3(a) of the Uniform Time Act of 1966 (15
268 # U.S.C. 260a(a)) is amended--
269 # (1) by striking "first Sunday of April" and inserting "second
270 # Sunday of March"; and
271 # (2) by striking "last Sunday of October" and inserting "first
272 # Sunday of November'.
288 # New Hampshire, New Jersey, New York, North Carolina, Ohio,
289 # Pennsylvania, Rhode Island, South Carolina, eastern Tennessee,
290 # Vermont, Virginia, West Virginia
291
292 # From Dave Cantor (2004-11-02):
293 # Early this summer I had the occasion to visit the Mount Washington
294 # Observatory weather station atop (of course!) Mount Washington [, NH]....
295 # One of the staff members said that the station was on Eastern Standard Time
296 # and didn't change their clocks for Daylight Saving ... so that their
297 # reports will always have times which are 5 hours behind UTC.
298
299 # From Paul Eggert (2005-08-26):
300 # According to today's Huntsville Times
301 # http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1
302 # a few towns on Alabama's "eastern border with Georgia, such as Phenix City
303 # in Russell County, Lanett in Chambers County and some towns in Lee County,
304 # set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
305 # Roberts, city administrator in Phenix City. as saying "We are in the Central
306 # time zone, but we do go by the Eastern time zone because so many people work
307 # in Columbus."
308
309 # From Paul Eggert (2014-09-06):
310 # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
311 # says that New York City Hall time was 3 minutes 58.4 seconds fast of
312 # Eastern time (i.e., -4:56:01.6) just before the 1883 switch. Round to the
313 # nearest second.
314
315 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
316 Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
317 Rule NYC 1920 only - Oct lastSun 2:00 0 S
318 Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
319 Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
320 Rule NYC 1955 1966 - Oct lastSun 2:00 0 S
321 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
322 Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
323 -5:00 US E%sT 1920
324 -5:00 NYC E%sT 1942
325 -5:00 US E%sT 1946
326 -5:00 NYC E%sT 1967
327 -5:00 US E%sT
465 # Despite the controversy, in 1949 California voters approved Proposition 12,
466 # which established DST from April's last Sunday at 01:00 until September's
467 # last Sunday at 02:00. This was amended by 1962's Proposition 6, which changed
468 # the fall-back date to October's last Sunday. See:
469 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props
470 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props
471 #
472 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
473 Rule CA 1948 only - Mar 14 2:01 1:00 D
474 Rule CA 1949 only - Jan 1 2:00 0 S
475 Rule CA 1950 1966 - Apr lastSun 1:00 1:00 D
476 Rule CA 1950 1961 - Sep lastSun 2:00 0 S
477 Rule CA 1962 1966 - Oct lastSun 2:00 0 S
478 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
479 Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
480 -8:00 US P%sT 1946
481 -8:00 CA P%sT 1967
482 -8:00 US P%sT
483
484 # Alaska
485 # AK%sT is the modern abbreviation for -9:00 per USNO.
486 #
487 # From Paul Eggert (2001-05-30):
488 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
489 # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
490 # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
491 # also a Friday. Include only the time zone part of this transition,
492 # ignoring the switch from Julian to Gregorian, since we can't represent
493 # the Julian calendar.
494 #
495 # As far as we know, none of the exact locations mentioned below were
496 # permanently inhabited in 1867 by anyone using either calendar.
497 # (Yakutat was colonized by the Russians in 1799, but the settlement
498 # was destroyed in 1805 by a Yakutat-kon war party.) However, there
499 # were nearby inhabitants in some cases and for our purposes perhaps
500 # it's best to simply use the official transition.
501
502 # From Paul Eggert (2014-07-18):
503 # One opinion of the early-1980s turmoil in Alaska over time zones and
504 # daylight saving time appeared as graffiti on a Juneau airport wall:
505 # "Welcome to Juneau. Please turn your watch back to the 19th century."
571 -8:00 US P%sT 1983 Oct 30 2:00
572 -9:00 US Y%sT 1983 Nov 30
573 -9:00 US AK%sT
574 Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18
575 -8:46:18 - LMT 1900 Aug 20 12:00
576 -8:00 - PST 1942
577 -8:00 US P%sT 1946
578 -8:00 - PST 1969
579 -8:00 US P%sT 1983 Oct 30 2:00
580 -8:00 - PST 2015 Nov 1 2:00
581 -9:00 US AK%sT
582 Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
583 -9:18:55 - LMT 1900 Aug 20 12:00
584 -9:00 - YST 1942
585 -9:00 US Y%sT 1946
586 -9:00 - YST 1969
587 -9:00 US Y%sT 1983 Nov 30
588 -9:00 US AK%sT
589 Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
590 -9:59:36 - LMT 1900 Aug 20 12:00
591 -10:00 - CAT 1942
592 -10:00 US CAT/CAWT 1945 Aug 14 23:00u
593 -10:00 US CAT/CAPT 1946 # Peace
594 -10:00 - CAT 1967 Apr
595 -10:00 - AHST 1969
596 -10:00 US AH%sT 1983 Oct 30 2:00
597 -9:00 US Y%sT 1983 Nov 30
598 -9:00 US AK%sT
599 Zone America/Nome 12:58:21 - LMT 1867 Oct 18
600 -11:01:38 - LMT 1900 Aug 20 12:00
601 -11:00 - NST 1942
602 -11:00 US N%sT 1946
603 -11:00 - NST 1967 Apr
604 -11:00 - BST 1969
605 -11:00 US B%sT 1983 Oct 30 2:00
606 -9:00 US Y%sT 1983 Nov 30
607 -9:00 US AK%sT
608 Zone America/Adak 12:13:21 - LMT 1867 Oct 18
609 -11:46:38 - LMT 1900 Aug 20 12:00
610 -11:00 - NST 1942
611 -11:00 US N%sT 1946
612 -11:00 - NST 1967 Apr
613 -11:00 - BST 1969
614 -11:00 US B%sT 1983 Oct 30 2:00
663 # hour...This Act shall take effect upon its approval. Approved this 26th
664 # day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of
665 # Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is
666 # hereby repealed...This Act shall take effect upon its approval, upon
667 # which date the standard time of this Territory shall be restored to
668 # that existing immediately prior to the taking effect of said Act 90.
669 # Approved this 21st day of May, A. D. 1933. LAWRENCE M. JUDD, Governor
670 # of the Territory of Hawaii."
671 #
672 # Note that 1933-05-21 was a Sunday.
673 # We're left to guess the time of day when Act 163 was approved; guess noon.
674
675 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
676 Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00
677 -10:30 - HST 1933 Apr 30 2:00
678 -10:30 1:00 HDT 1933 May 21 12:00
679 -10:30 - HST 1942 Feb 9 2:00
680 -10:30 1:00 HDT 1945 Sep 30 2:00
681 -10:30 - HST 1947 Jun 8 2:00
682 -10:00 - HST
683 Link Pacific/Honolulu Pacific/Johnston
684
685 # Now we turn to US areas that have diverged from the consensus since 1970.
686
687 # Arizona mostly uses MST.
688
689 # From Paul Eggert (2002-10-20):
690 #
691 # The information in the rest of this paragraph is derived from the
692 # Daylight Saving Time web page
693 # <http://www.dlapr.lib.az.us/links/daylight.htm> (2002-01-23)
694 # maintained by the Arizona State Library, Archives and Public Records.
695 # Between 1944-01-01 and 1944-04-01 the State of Arizona used standard
696 # time, but by federal law railroads, airlines, bus lines, military
697 # personnel, and some engaged in interstate commerce continued to
698 # observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix
699 # Gazette says that was the date the law changed, and that 04-01 was
700 # the date the state's clocks would change. In 1945 the State of
701 # Arizona used standard time all year, again with exceptions only as
702 # mandated by federal law. Arizona observed DST in 1967, but Arizona
703 # Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.
1051 Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
1052 -6:00 US C%sT 1946
1053 -6:00 Menominee C%sT 1969 Apr 27 2:00
1054 -5:00 - EST 1973 Apr 29 2:00
1055 -6:00 US C%sT
1056
1057 # Navassa
1058 # administered by the US Fish and Wildlife Service
1059 # claimed by US under the provisions of the 1856 Guano Islands Act
1060 # also claimed by Haiti
1061 # occupied 1857/1900 by the Navassa Phosphate Co
1062 # US lighthouse 1917/1996-09
1063 # currently uninhabited
1064 # see Mark Fineman, "An Isle Rich in Guano and Discord",
1065 # _Los Angeles Times_ (1998-11-10), A1, A10; it cites
1066 # Jimmy Skaggs, _The Great Guano Rush_ (1994).
1067
1068 ################################################################################
1069
1070
1071 # From Paul Eggert (2014-10-31):
1072 #
1073 # Unless otherwise specified, the source for data through 1990 is:
1074 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
1075 # San Diego: ACS Publications, Inc. (2003).
1076 # Unfortunately this book contains many errors and cites no sources.
1077 #
1078 # Gwillim Law writes that a good source
1079 # for recent time zone data is the International Air Transport
1080 # Association's Standard Schedules Information Manual (IATA SSIM),
1081 # published semiannually. Law sent in several helpful summaries
1082 # of the IATA's data after 1990. Except where otherwise noted,
1083 # IATA SSIM is the source for entries after 1990.
1084 #
1085 # Other sources occasionally used include:
1086 #
1087 # Edward W. Whitman, World Time Differences,
1088 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
1089 # which I found in the UCLA library.
1090 #
1091 # William Willett, The Waste of Daylight, 19th edition
1092 # <http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
1093 # [PDF] (1914-03)
1094 #
1095 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
1096 # <http://www.jstor.org/stable/1774359>.
1097 #
1098 # See the 'europe' file for Greenland.
1099
2717 -5:00 US E%sT
2718
2719 # Barbados
2720
2721 # For 1899 Milne gives -3:58:29.2; round that.
2722
2723 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2724 Rule Barb 1977 only - Jun 12 2:00 1:00 D
2725 Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
2726 Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
2727 Rule Barb 1979 only - Sep 30 2:00 0 S
2728 Rule Barb 1980 only - Sep 25 2:00 0 S
2729 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2730 Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown
2731 -3:58:29 - BMT 1932 # Bridgetown Mean Time
2732 -4:00 Barb A%sT
2733
2734 # Belize
2735 # Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
2736 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2737 Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 HD
2738 Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 S
2739 Rule Belize 1973 only - Dec 5 0:00 1:00 D
2740 Rule Belize 1974 only - Feb 9 0:00 0 S
2741 Rule Belize 1982 only - Dec 18 0:00 1:00 D
2742 Rule Belize 1983 only - Feb 12 0:00 0 S
2743 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2744 Zone America/Belize -5:52:48 - LMT 1912 Apr
2745 -6:00 Belize C%sT
2746
2747 # Bermuda
2748
2749 # For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
2750 # Bermuda dockyard, Ireland I; round that.
2751
2752 # From Dan Jones, reporting in The Royal Gazette (2006-06-26):
2753
2754 # Next year, however, clocks in the US will go forward on the second Sunday
2755 # in March, until the first Sunday in November. And, after the Time Zone
2756 # (Seasonal Variation) Bill 2006 was passed in the House of Assembly on
2757 # Friday, the same thing will happen in Bermuda.
2758 # http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
2759
2760 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2761 Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
2762 -4:00 - AST 1974 Apr 28 2:00
2763 -4:00 Canada A%sT 1976
2764 -4:00 US A%sT
2765
2997
2998 # From Steffen Thorsen (2000-10-30):
2999 # Enrique Morales reported to me that the Dominican Republic has changed the
3000 # time zone to Eastern Standard Time as of Sunday 29 at 2 am....
3001 # http://www.listin.com.do/antes/261000/republica/princi.html
3002
3003 # From Paul Eggert (2000-12-04):
3004 # That URL (2000-10-26, in Spanish) says they planned to use US-style DST.
3005
3006 # From Rives McDow (2000-12-01):
3007 # Dominican Republic changed its mind and presidential decree on Tuesday,
3008 # November 28, 2000, with a new decree. On Sunday, December 3 at 1:00 AM the
3009 # Dominican Republic will be reverting to 8 hours from the International Date
3010 # Line, and will not be using DST in the foreseeable future. The reason they
3011 # decided to use DST was to be in synch with Puerto Rico, who was also going
3012 # to implement DST. When Puerto Rico didn't implement DST, the president
3013 # decided to revert.
3014
3015
3016 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3017 Rule DR 1966 only - Oct 30 0:00 1:00 D
3018 Rule DR 1967 only - Feb 28 0:00 0 S
3019 Rule DR 1969 1973 - Oct lastSun 0:00 0:30 HD
3020 Rule DR 1970 only - Feb 21 0:00 0 S
3021 Rule DR 1971 only - Jan 20 0:00 0 S
3022 Rule DR 1972 1974 - Jan 21 0:00 0 S
3023 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3024 Zone America/Santo_Domingo -4:39:36 - LMT 1890
3025 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
3026 -5:00 DR E%sT 1974 Oct 27
3027 -4:00 - AST 2000 Oct 29 2:00
3028 -5:00 US E%sT 2000 Dec 3 1:00
3029 -4:00 - AST
3030
3031 # El Salvador
3032
3033 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3034 Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
3035 Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
3036 # There are too many San Salvadors elsewhere, so use America/El_Salvador
3037 # instead of America/San_Salvador.
3038 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3039 Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
3040 -6:00 Salv C%sT
3041
3042 # Grenada
3043 # Guadeloupe
3044 # St Barthélemy
3045 # St Martin (French part)
3046 # See America/Port_of_Spain.
3117 # From Arthur David Olson (2012-03-11):
3118 # The alterpresse.org source seems to show a US-style leap from 2:00 a.m. to
3119 # 3:00 a.m. rather than the traditional Haitian jump at midnight.
3120 # Assume a US-style fall back as well.
3121
3122 # From Steffen Thorsen (2013-03-10):
3123 # It appears that Haiti is observing DST this year as well, same rules
3124 # as US/Canada. They did it last year as well, and it looks like they
3125 # are going to observe DST every year now...
3126 #
3127 # http://radiovision2000haiti.net/public/haiti-avis-changement-dheure-dimanche/
3128 # http://www.canalplushaiti.net/?p=6714
3129
3130 # From Steffen Thorsen (2016-03-12):
3131 # Jean Antoine, editor of www.haiti-reference.com informed us that Haiti
3132 # are not going on DST this year. Several other resources confirm this: ...
3133 # http://www.radiotelevisioncaraibes.com/presse/heure_d_t_pas_de_changement_d_heure_pr_vu_pour_cet_ann_e.html
3134 # http://www.vantbefinfo.com/changement-dheure-pas-pour-haiti/
3135 # http://news.anmwe.com/haiti-lheure-nationale-ne-sera-ni-avancee-ni-reculee-cette-annee/
3136
3137 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3138 Rule Haiti 1983 only - May 8 0:00 1:00 D
3139 Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
3140 Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
3141 # Shanks & Pottenger say AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.
3142 # Go with IATA.
3143 Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D
3144 Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S
3145 Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D
3146 Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S
3147 Rule Haiti 2012 2015 - Mar Sun>=8 2:00 1:00 D
3148 Rule Haiti 2012 2015 - Nov Sun>=1 2:00 0 S
3149 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3150 Zone America/Port-au-Prince -4:49:20 - LMT 1890
3151 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
3152 -5:00 Haiti E%sT
3153
3154 # Honduras
3155 # Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
3156
3157 # From Paul Eggert (2006-05-05):
3158 # worldtimezone.com reports a 2006-05-02 Spanish-language AP article
3159 # saying Honduras will start using DST midnight Saturday, effective 4
3160 # months until September. La Tribuna reported today
3161 # <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
3162 # of Honduras, refused to back down on this.
3163
3164 # From Jesper Nørgaard Welen (2006-08-08):
3165 # It seems that Honduras has returned from DST to standard time this Monday at
3166 # 00:00 hours (prolonging Sunday to 25 hours duration).
3167 # http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
3168
3296 -5:00 - EST
3297 Link America/Panama America/Cayman
3298
3299 # Puerto Rico
3300 # There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
3301 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3302 Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan
3303 -4:00 - AST 1942 May 3
3304 -4:00 US A%sT 1946
3305 -4:00 - AST
3306
3307 # St Kitts-Nevis
3308 # St Lucia
3309 # See America/Port_of_Spain.
3310
3311 # St Pierre and Miquelon
3312 # There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
3313 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3314 Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
3315 -4:00 - AST 1980 May
3316 -3:00 - PMST 1987 # Pierre & Miquelon Time
3317 -3:00 Canada PM%sT
3318
3319 # St Vincent and the Grenadines
3320 # See America/Port_of_Spain.
3321
3322 # Turks and Caicos
3323 #
3324 # From Chris Dunn in
3325 # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
3326 # (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
3327 # daylight saving dates for time changes have been adjusted to match
3328 # the recent U.S. change of dates.
3329 #
3330 # From Brian Inglis (2007-04-28):
3331 # http://www.turksandcaicos.tc/calendar/index.htm [2007-04-26]
3332 # there is an entry for Nov 4 "Daylight Savings Time Ends 2007" and three
3333 # rows before that there is an out of date entry for Oct:
3334 # "Eastern Standard Times Begins 2007
3335 # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
3336 # indicating that the normal ET rules are followed.
3337 #
|
161 # From Arthur David Olson, 2005-12-19
162 # We generate the files specified below to guard against old files with
163 # obsolete information being left in the time zone binary directory.
164 # We limit the list to names that have appeared in previous versions of
165 # this time zone package.
166 # We do these as separate Zones rather than as Links to avoid problems if
167 # a particular place changes whether it observes DST.
168 # We put these specifications here in the northamerica file both to
169 # increase the chances that they'll actually get compiled and to
170 # avoid the need to duplicate the US rules in another file.
171
172 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
173 Zone EST -5:00 - EST
174 Zone MST -7:00 - MST
175 Zone HST -10:00 - HST
176 Zone EST5EDT -5:00 US E%sT
177 Zone CST6CDT -6:00 US C%sT
178 Zone MST7MDT -7:00 US M%sT
179 Zone PST8PDT -8:00 US P%sT
180
181 # From U. S. Naval Observatory (1989-01-19):
182 # USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON
183 # USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30
184 # USA CENTRAL 6 H BEHIND UTC CHICAGO, HOUSTON
185 # USA CENTRAL 5 H BEHIND UTC APR 3 - OCT 30
186 # USA MOUNTAIN 7 H BEHIND UTC DENVER
187 # USA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 30
188 # USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
189 # USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
190 # USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
191 # USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
192 # USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
193 # USA " 9 H BEHIND UTC APR 3 - OCT 30
194 # USA HAWAII 10 H BEHIND UTC
195 # USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
196
197 # From Arthur David Olson (1989-01-21):
198 # The above dates are for 1988.
199 # Note the "AKST" and "AKDT" abbreviations, the claim that there's
200 # no DST in Samoa, and the claim that there is DST in Alaska and the
217 # public law 98-181):
218 # Atlantic standard time
219 # eastern standard time
220 # central standard time
221 # mountain standard time
222 # Pacific standard time
223 # Yukon standard time
224 # Alaska-Hawaii standard time
225 # Bering standard time
226 # And after 1983-11-30:
227 # Atlantic standard time
228 # eastern standard time
229 # central standard time
230 # mountain standard time
231 # Pacific standard time
232 # Alaska standard time
233 # Hawaii-Aleutian standard time
234 # Samoa standard time
235 # The law doesn't give abbreviations.
236 #
237 # From Paul Eggert (2016-12-19):
238 # Here are URLs for the 1918 and 1966 legislation:
239 # http://uscode.house.gov/statviewer.htm?volume=40&page=451
240 # http://uscode.house.gov/statviewer.htm?volume=80&page=108
241 # Although the 1918 names were officially "United States Standard
242 # Eastern Time" and similarly for "Central", "Mountain", "Pacific",
243 # and "Alaska", in practice "Standard" was placed just before "Time",
244 # as codified in 1966. In practice, Alaska time was abbreviated "AST"
245 # before 1968. Summarizing the 1967 name changes:
246 # 1918 names 1967 names
247 # -08 Standard Pacific Time (PST) Pacific standard time (PST)
248 # -09 (unofficial) Yukon (YST) Yukon standard time (YST)
249 # -10 Standard Alaska Time (AST) Alaska-Hawaii standard time (AHST)
250 # -11 (unofficial) Nome (NST) Bering standard time (BST)
251 #
252 # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
253 # Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
254 # for time in Guam and the Northern Marianas. See the file "australasia".
255 #
256 # From Paul Eggert (2015-04-17):
257 # HST and HDT are standardized abbreviations for Hawaii-Aleutian
258 # standard and daylight times. See section 9.47 (p 234) of the
259 # U.S. Government Printing Office Style Manual (2008)
260 # http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
261
262 # From Arthur David Olson, 2005-08-09
263 # The following was signed into law on 2005-08-08.
264 #
265 # H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
266 # (a) Amendment.--Section 3(a) of the Uniform Time Act of 1966 (15
267 # U.S.C. 260a(a)) is amended--
268 # (1) by striking "first Sunday of April" and inserting "second
269 # Sunday of March"; and
270 # (2) by striking "last Sunday of October" and inserting "first
271 # Sunday of November'.
287 # New Hampshire, New Jersey, New York, North Carolina, Ohio,
288 # Pennsylvania, Rhode Island, South Carolina, eastern Tennessee,
289 # Vermont, Virginia, West Virginia
290
291 # From Dave Cantor (2004-11-02):
292 # Early this summer I had the occasion to visit the Mount Washington
293 # Observatory weather station atop (of course!) Mount Washington [, NH]....
294 # One of the staff members said that the station was on Eastern Standard Time
295 # and didn't change their clocks for Daylight Saving ... so that their
296 # reports will always have times which are 5 hours behind UTC.
297
298 # From Paul Eggert (2005-08-26):
299 # According to today's Huntsville Times
300 # http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1
301 # a few towns on Alabama's "eastern border with Georgia, such as Phenix City
302 # in Russell County, Lanett in Chambers County and some towns in Lee County,
303 # set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
304 # Roberts, city administrator in Phenix City. as saying "We are in the Central
305 # time zone, but we do go by the Eastern time zone because so many people work
306 # in Columbus."
307 #
308 # From Paul Eggert (2017-02-22):
309 # Four cities are involved. The two not mentioned above are Smiths Station
310 # and Valley. Barbara Brooks, Valley's assistant treasurer, heard it started
311 # because West Point Pepperell textile mills were in Alabama while the
312 # corporate office was in Georgia, and residents voted to keep Eastern
313 # time even after the mills closed. See: Kazek K. Did you know which
314 # Alabama towns are in a different time zone? al.com 2017-02-06.
315 # http://www.al.com/living/index.ssf/2017/02/do_you_know_which_alabama_town.html
316
317 # From Paul Eggert (2014-09-06):
318 # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
319 # says that New York City Hall time was 3 minutes 58.4 seconds fast of
320 # Eastern time (i.e., -4:56:01.6) just before the 1883 switch. Round to the
321 # nearest second.
322
323 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
324 Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
325 Rule NYC 1920 only - Oct lastSun 2:00 0 S
326 Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
327 Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
328 Rule NYC 1955 1966 - Oct lastSun 2:00 0 S
329 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
330 Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
331 -5:00 US E%sT 1920
332 -5:00 NYC E%sT 1942
333 -5:00 US E%sT 1946
334 -5:00 NYC E%sT 1967
335 -5:00 US E%sT
473 # Despite the controversy, in 1949 California voters approved Proposition 12,
474 # which established DST from April's last Sunday at 01:00 until September's
475 # last Sunday at 02:00. This was amended by 1962's Proposition 6, which changed
476 # the fall-back date to October's last Sunday. See:
477 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props
478 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props
479 #
480 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
481 Rule CA 1948 only - Mar 14 2:01 1:00 D
482 Rule CA 1949 only - Jan 1 2:00 0 S
483 Rule CA 1950 1966 - Apr lastSun 1:00 1:00 D
484 Rule CA 1950 1961 - Sep lastSun 2:00 0 S
485 Rule CA 1962 1966 - Oct lastSun 2:00 0 S
486 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
487 Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
488 -8:00 US P%sT 1946
489 -8:00 CA P%sT 1967
490 -8:00 US P%sT
491
492 # Alaska
493 # AK%sT is the modern abbreviation for -09 per USNO.
494 #
495 # From Paul Eggert (2001-05-30):
496 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
497 # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
498 # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
499 # also a Friday. Include only the time zone part of this transition,
500 # ignoring the switch from Julian to Gregorian, since we can't represent
501 # the Julian calendar.
502 #
503 # As far as we know, none of the exact locations mentioned below were
504 # permanently inhabited in 1867 by anyone using either calendar.
505 # (Yakutat was colonized by the Russians in 1799, but the settlement
506 # was destroyed in 1805 by a Yakutat-kon war party.) However, there
507 # were nearby inhabitants in some cases and for our purposes perhaps
508 # it's best to simply use the official transition.
509
510 # From Paul Eggert (2014-07-18):
511 # One opinion of the early-1980s turmoil in Alaska over time zones and
512 # daylight saving time appeared as graffiti on a Juneau airport wall:
513 # "Welcome to Juneau. Please turn your watch back to the 19th century."
579 -8:00 US P%sT 1983 Oct 30 2:00
580 -9:00 US Y%sT 1983 Nov 30
581 -9:00 US AK%sT
582 Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18
583 -8:46:18 - LMT 1900 Aug 20 12:00
584 -8:00 - PST 1942
585 -8:00 US P%sT 1946
586 -8:00 - PST 1969
587 -8:00 US P%sT 1983 Oct 30 2:00
588 -8:00 - PST 2015 Nov 1 2:00
589 -9:00 US AK%sT
590 Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
591 -9:18:55 - LMT 1900 Aug 20 12:00
592 -9:00 - YST 1942
593 -9:00 US Y%sT 1946
594 -9:00 - YST 1969
595 -9:00 US Y%sT 1983 Nov 30
596 -9:00 US AK%sT
597 Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
598 -9:59:36 - LMT 1900 Aug 20 12:00
599 -10:00 - AST 1942
600 -10:00 US A%sT 1967 Apr
601 -10:00 - AHST 1969
602 -10:00 US AH%sT 1983 Oct 30 2:00
603 -9:00 US Y%sT 1983 Nov 30
604 -9:00 US AK%sT
605 Zone America/Nome 12:58:21 - LMT 1867 Oct 18
606 -11:01:38 - LMT 1900 Aug 20 12:00
607 -11:00 - NST 1942
608 -11:00 US N%sT 1946
609 -11:00 - NST 1967 Apr
610 -11:00 - BST 1969
611 -11:00 US B%sT 1983 Oct 30 2:00
612 -9:00 US Y%sT 1983 Nov 30
613 -9:00 US AK%sT
614 Zone America/Adak 12:13:21 - LMT 1867 Oct 18
615 -11:46:38 - LMT 1900 Aug 20 12:00
616 -11:00 - NST 1942
617 -11:00 US N%sT 1946
618 -11:00 - NST 1967 Apr
619 -11:00 - BST 1969
620 -11:00 US B%sT 1983 Oct 30 2:00
669 # hour...This Act shall take effect upon its approval. Approved this 26th
670 # day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of
671 # Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is
672 # hereby repealed...This Act shall take effect upon its approval, upon
673 # which date the standard time of this Territory shall be restored to
674 # that existing immediately prior to the taking effect of said Act 90.
675 # Approved this 21st day of May, A. D. 1933. LAWRENCE M. JUDD, Governor
676 # of the Territory of Hawaii."
677 #
678 # Note that 1933-05-21 was a Sunday.
679 # We're left to guess the time of day when Act 163 was approved; guess noon.
680
681 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
682 Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00
683 -10:30 - HST 1933 Apr 30 2:00
684 -10:30 1:00 HDT 1933 May 21 12:00
685 -10:30 - HST 1942 Feb 9 2:00
686 -10:30 1:00 HDT 1945 Sep 30 2:00
687 -10:30 - HST 1947 Jun 8 2:00
688 -10:00 - HST
689
690 # Now we turn to US areas that have diverged from the consensus since 1970.
691
692 # Arizona mostly uses MST.
693
694 # From Paul Eggert (2002-10-20):
695 #
696 # The information in the rest of this paragraph is derived from the
697 # Daylight Saving Time web page
698 # <http://www.dlapr.lib.az.us/links/daylight.htm> (2002-01-23)
699 # maintained by the Arizona State Library, Archives and Public Records.
700 # Between 1944-01-01 and 1944-04-01 the State of Arizona used standard
701 # time, but by federal law railroads, airlines, bus lines, military
702 # personnel, and some engaged in interstate commerce continued to
703 # observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix
704 # Gazette says that was the date the law changed, and that 04-01 was
705 # the date the state's clocks would change. In 1945 the State of
706 # Arizona used standard time all year, again with exceptions only as
707 # mandated by federal law. Arizona observed DST in 1967, but Arizona
708 # Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.
1056 Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
1057 -6:00 US C%sT 1946
1058 -6:00 Menominee C%sT 1969 Apr 27 2:00
1059 -5:00 - EST 1973 Apr 29 2:00
1060 -6:00 US C%sT
1061
1062 # Navassa
1063 # administered by the US Fish and Wildlife Service
1064 # claimed by US under the provisions of the 1856 Guano Islands Act
1065 # also claimed by Haiti
1066 # occupied 1857/1900 by the Navassa Phosphate Co
1067 # US lighthouse 1917/1996-09
1068 # currently uninhabited
1069 # see Mark Fineman, "An Isle Rich in Guano and Discord",
1070 # _Los Angeles Times_ (1998-11-10), A1, A10; it cites
1071 # Jimmy Skaggs, _The Great Guano Rush_ (1994).
1072
1073 ################################################################################
1074
1075
1076 # From Paul Eggert (2017-02-10):
1077 #
1078 # Unless otherwise specified, the source for data through 1990 is:
1079 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
1080 # San Diego: ACS Publications, Inc. (2003).
1081 # Unfortunately this book contains many errors and cites no sources.
1082 #
1083 # Many years ago Gwillim Law wrote that a good source
1084 # for time zone data was the International Air Transport
1085 # Association's Standard Schedules Information Manual (IATA SSIM),
1086 # published semiannually. Law sent in several helpful summaries
1087 # of the IATA's data after 1990. Except where otherwise noted,
1088 # IATA SSIM is the source for entries after 1990.
1089 #
1090 # Other sources occasionally used include:
1091 #
1092 # Edward W. Whitman, World Time Differences,
1093 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
1094 # which I found in the UCLA library.
1095 #
1096 # William Willett, The Waste of Daylight, 19th edition
1097 # <http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
1098 # [PDF] (1914-03)
1099 #
1100 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
1101 # <http://www.jstor.org/stable/1774359>.
1102 #
1103 # See the 'europe' file for Greenland.
1104
2722 -5:00 US E%sT
2723
2724 # Barbados
2725
2726 # For 1899 Milne gives -3:58:29.2; round that.
2727
2728 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2729 Rule Barb 1977 only - Jun 12 2:00 1:00 D
2730 Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
2731 Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
2732 Rule Barb 1979 only - Sep 30 2:00 0 S
2733 Rule Barb 1980 only - Sep 25 2:00 0 S
2734 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2735 Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown
2736 -3:58:29 - BMT 1932 # Bridgetown Mean Time
2737 -4:00 Barb A%sT
2738
2739 # Belize
2740 # Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
2741 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2742 Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 -0530
2743 Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 CST
2744 Rule Belize 1973 only - Dec 5 0:00 1:00 CDT
2745 Rule Belize 1974 only - Feb 9 0:00 0 CST
2746 Rule Belize 1982 only - Dec 18 0:00 1:00 CDT
2747 Rule Belize 1983 only - Feb 12 0:00 0 CST
2748 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2749 Zone America/Belize -5:52:48 - LMT 1912 Apr
2750 -6:00 Belize %s
2751
2752 # Bermuda
2753
2754 # For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
2755 # Bermuda dockyard, Ireland I; round that.
2756
2757 # From Dan Jones, reporting in The Royal Gazette (2006-06-26):
2758
2759 # Next year, however, clocks in the US will go forward on the second Sunday
2760 # in March, until the first Sunday in November. And, after the Time Zone
2761 # (Seasonal Variation) Bill 2006 was passed in the House of Assembly on
2762 # Friday, the same thing will happen in Bermuda.
2763 # http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
2764
2765 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
2766 Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
2767 -4:00 - AST 1974 Apr 28 2:00
2768 -4:00 Canada A%sT 1976
2769 -4:00 US A%sT
2770
3002
3003 # From Steffen Thorsen (2000-10-30):
3004 # Enrique Morales reported to me that the Dominican Republic has changed the
3005 # time zone to Eastern Standard Time as of Sunday 29 at 2 am....
3006 # http://www.listin.com.do/antes/261000/republica/princi.html
3007
3008 # From Paul Eggert (2000-12-04):
3009 # That URL (2000-10-26, in Spanish) says they planned to use US-style DST.
3010
3011 # From Rives McDow (2000-12-01):
3012 # Dominican Republic changed its mind and presidential decree on Tuesday,
3013 # November 28, 2000, with a new decree. On Sunday, December 3 at 1:00 AM the
3014 # Dominican Republic will be reverting to 8 hours from the International Date
3015 # Line, and will not be using DST in the foreseeable future. The reason they
3016 # decided to use DST was to be in synch with Puerto Rico, who was also going
3017 # to implement DST. When Puerto Rico didn't implement DST, the president
3018 # decided to revert.
3019
3020
3021 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3022 Rule DR 1966 only - Oct 30 0:00 1:00 EDT
3023 Rule DR 1967 only - Feb 28 0:00 0 EST
3024 Rule DR 1969 1973 - Oct lastSun 0:00 0:30 -0430
3025 Rule DR 1970 only - Feb 21 0:00 0 EST
3026 Rule DR 1971 only - Jan 20 0:00 0 EST
3027 Rule DR 1972 1974 - Jan 21 0:00 0 EST
3028 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3029 Zone America/Santo_Domingo -4:39:36 - LMT 1890
3030 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
3031 -5:00 DR %s 1974 Oct 27
3032 -4:00 - AST 2000 Oct 29 2:00
3033 -5:00 US E%sT 2000 Dec 3 1:00
3034 -4:00 - AST
3035
3036 # El Salvador
3037
3038 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3039 Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
3040 Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
3041 # There are too many San Salvadors elsewhere, so use America/El_Salvador
3042 # instead of America/San_Salvador.
3043 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3044 Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
3045 -6:00 Salv C%sT
3046
3047 # Grenada
3048 # Guadeloupe
3049 # St Barthélemy
3050 # St Martin (French part)
3051 # See America/Port_of_Spain.
3122 # From Arthur David Olson (2012-03-11):
3123 # The alterpresse.org source seems to show a US-style leap from 2:00 a.m. to
3124 # 3:00 a.m. rather than the traditional Haitian jump at midnight.
3125 # Assume a US-style fall back as well.
3126
3127 # From Steffen Thorsen (2013-03-10):
3128 # It appears that Haiti is observing DST this year as well, same rules
3129 # as US/Canada. They did it last year as well, and it looks like they
3130 # are going to observe DST every year now...
3131 #
3132 # http://radiovision2000haiti.net/public/haiti-avis-changement-dheure-dimanche/
3133 # http://www.canalplushaiti.net/?p=6714
3134
3135 # From Steffen Thorsen (2016-03-12):
3136 # Jean Antoine, editor of www.haiti-reference.com informed us that Haiti
3137 # are not going on DST this year. Several other resources confirm this: ...
3138 # http://www.radiotelevisioncaraibes.com/presse/heure_d_t_pas_de_changement_d_heure_pr_vu_pour_cet_ann_e.html
3139 # http://www.vantbefinfo.com/changement-dheure-pas-pour-haiti/
3140 # http://news.anmwe.com/haiti-lheure-nationale-ne-sera-ni-avancee-ni-reculee-cette-annee/
3141
3142 # From Steffen Thorsen (2017-03-12):
3143 # We have received 4 mails from different people telling that Haiti
3144 # has started DST again today, and this source seems to confirm that,
3145 # I have not been able to find a more authoritative source:
3146 # https://www.haitilibre.com/en/news-20319-haiti-notices-time-change-in-haiti.html
3147
3148 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
3149 Rule Haiti 1983 only - May 8 0:00 1:00 D
3150 Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
3151 Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
3152 # Shanks & Pottenger say AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.
3153 # Go with IATA.
3154 Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D
3155 Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S
3156 Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D
3157 Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S
3158 Rule Haiti 2012 2015 - Mar Sun>=8 2:00 1:00 D
3159 Rule Haiti 2012 2015 - Nov Sun>=1 2:00 0 S
3160 Rule Haiti 2017 max - Mar Sun>=8 2:00 1:00 D
3161 Rule Haiti 2017 max - Nov Sun>=1 2:00 0 S
3162 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3163 Zone America/Port-au-Prince -4:49:20 - LMT 1890
3164 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
3165 -5:00 Haiti E%sT
3166
3167 # Honduras
3168 # Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
3169
3170 # From Paul Eggert (2006-05-05):
3171 # worldtimezone.com reports a 2006-05-02 Spanish-language AP article
3172 # saying Honduras will start using DST midnight Saturday, effective 4
3173 # months until September. La Tribuna reported today
3174 # <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
3175 # of Honduras, refused to back down on this.
3176
3177 # From Jesper Nørgaard Welen (2006-08-08):
3178 # It seems that Honduras has returned from DST to standard time this Monday at
3179 # 00:00 hours (prolonging Sunday to 25 hours duration).
3180 # http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
3181
3309 -5:00 - EST
3310 Link America/Panama America/Cayman
3311
3312 # Puerto Rico
3313 # There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
3314 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3315 Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan
3316 -4:00 - AST 1942 May 3
3317 -4:00 US A%sT 1946
3318 -4:00 - AST
3319
3320 # St Kitts-Nevis
3321 # St Lucia
3322 # See America/Port_of_Spain.
3323
3324 # St Pierre and Miquelon
3325 # There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
3326 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3327 Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
3328 -4:00 - AST 1980 May
3329 -3:00 - -03 1987
3330 -3:00 Canada -03/-02
3331
3332 # St Vincent and the Grenadines
3333 # See America/Port_of_Spain.
3334
3335 # Turks and Caicos
3336 #
3337 # From Chris Dunn in
3338 # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
3339 # (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
3340 # daylight saving dates for time changes have been adjusted to match
3341 # the recent U.S. change of dates.
3342 #
3343 # From Brian Inglis (2007-04-28):
3344 # http://www.turksandcaicos.tc/calendar/index.htm [2007-04-26]
3345 # there is an entry for Nov 4 "Daylight Savings Time Ends 2007" and three
3346 # rows before that there is an out of date entry for Oct:
3347 # "Eastern Standard Times Begins 2007
3348 # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
3349 # indicating that the normal ET rules are followed.
3350 #
|