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# <pre> |
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# @(#)northamerica 8.34 |
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# @(#)northamerica 8.42 |
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# This file is in the public domain, so clarified as of |
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# 2009-05-17 by Arthur David Olson. |
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@ -346,6 +346,27 @@ Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21 |
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-7:00 US M%sT 2003 Oct 26 02:00 |
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-6:00 US C%sT |
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# From Josh Findley (2011-01-21): |
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# ...it appears that Mercer County, North Dakota, changed from the |
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# mountain time zone to the central time zone at the last transition from |
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# daylight-saving to standard time (on Nov. 7, 2010): |
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# <a href="http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm"> |
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# http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm |
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# </a> |
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# <a href="http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html"> |
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# http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html |
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# </a> |
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# From Andy Lipscomb (2011-01-24): |
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# ...according to the Census Bureau, the largest city is Beulah (although |
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# it's commonly referred to as Beulah-Hazen, with Hazen being the next |
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# largest city in Mercer County). Google Maps places Beulah's city hall |
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# at 4715'51" north, 10146'40" west, which yields an offset of 6h47'07". |
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Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53 |
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-7:00 US M%sT 2010 Nov 7 2:00 |
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-6:00 US C%sT |
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# US mountain time, represented by Denver |
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# |
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# Colorado, far western Kansas, Montana, western |
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@ -405,15 +426,74 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 |
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# were nearby inhabitants in some cases and for our purposes perhaps |
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# it's best to simply use the official transition. |
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# |
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# From Steve Ferguson (2011-01-31): |
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# The author lives in Alaska and many of the references listed are only |
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# available to Alaskan residents. |
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# |
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# <a href="http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98"> |
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# http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98 |
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# </a> |
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# From Arthur David Olson (2011-02-01): |
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# Here's database-relevant material from the 2001 "Alaska History" article: |
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# |
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# On September 20 [1979]...DOT...officials decreed that on April 27, |
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# 1980, Juneau and other nearby communities would move to Yukon Time. |
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# Sitka, Petersburg, Wrangell, and Ketchikan, however, would remain on |
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# Pacific Time. |
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# |
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# ...on September 22, 1980, DOT Secretary Neil E. Goldschmidt rescinded the |
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# Department's September 1979 decision. Juneau and other communities in |
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# northern Southeast reverted to Pacific Time on October 26. |
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# |
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# On October 28 [1983]...the Metlakatla Indian Community Council voted |
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# unanimously to keep the reservation on Pacific Time. |
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# |
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# According to DOT official Joanne Petrie, Indian reservations are not |
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# bound to follow time zones imposed by neighboring jurisdictions. |
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# |
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# (The last is consistent with how the database now handles the Navajo |
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# Nation.) |
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# From Arthur David Olson (2011-02-09): |
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# I just spoke by phone with a staff member at the Metlakatla Indian |
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# Community office (using contact information available at |
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# <a href="http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla"> |
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# http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla |
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# </a>). |
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# It's shortly after 1:00 here on the east coast of the United States; |
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# the staffer said it was shortly after 10:00 there. When I asked whether |
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# that meant they were on Pacific time, they said no--they were on their |
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# own time. I asked about daylight saving; they said it wasn't used. I |
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# did not inquire about practices in the past. |
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# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
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Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 |
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-8:57:41 - LMT 1900 Aug 20 12:00 |
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-8:00 - PST 1942 |
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-8:00 US P%sT 1946 |
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-8:00 - PST 1969 |
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-8:00 US P%sT 1980 Apr 27 2:00 |
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-9:00 US Y%sT 1980 Oct 26 2:00 |
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-8:00 US P%sT 1983 Oct 30 2:00 |
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-9:00 US Y%sT 1983 Nov 30 |
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-9:00 US AK%sT |
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Zone America/Sitka -14:58:47 - LMT 1867 Oct 18 |
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-9:01:13 - LMT 1900 Aug 20 12:00 |
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-8:00 - PST 1942 |
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-8:00 US P%sT 1946 |
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-8:00 - PST 1969 |
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-8:00 US P%sT 1983 Oct 30 2:00 |
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-9:00 US Y%sT 1983 Nov 30 |
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-9:00 US AK%sT |
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Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18 |
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-8:46:18 - LMT 1900 Aug 20 12:00 |
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-8:00 - PST 1942 |
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-8:00 US P%sT 1946 |
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-8:00 - PST 1969 |
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-8:00 US P%sT 1983 Oct 30 2:00 |
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-8:00 US MeST |
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Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 |
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-9:18:55 - LMT 1900 Aug 20 12:00 |
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-9:00 - YST 1942 |
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@ -471,20 +551,50 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 |
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# three votes for and one against." |
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# Hawaii |
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# |
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# From Arthur David Olson: |
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# And then there's Hawaii. |
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# DST was observed for one day in 1933; |
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# standard time was changed by half an hour in 1947; |
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# it's always standard as of 1986. |
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# |
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# From Paul Eggert: |
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# Shanks says the 1933 experiment lasted for three weeks. Go with Shanks. |
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# |
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Zone Pacific/Honolulu -10:31:26 - LMT 1900 Jan 1 12:00 |
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-10:30 - HST 1933 Apr 30 2:00 |
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-10:30 1:00 HDT 1933 May 21 2:00 |
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-10:30 US H%sT 1947 Jun 8 2:00 |
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# From Arthur David Olson (2010-12-09): |
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# "Hawaiian Time" by Robert C. Schmitt and Doak C. Cox appears on pages 207-225 |
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# of volume 26 of The Hawaiian Journal of History (1992). As of 2010-12-09, |
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# the article is available at |
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# <a href="http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf"> |
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# http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf |
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# </a> |
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# and indicates that standard time was adopted effective noon, January |
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# 13, 1896 (page 218), that in "1933, the Legislature decreed daylight |
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# saving for the period between the last Sunday of each April and the |
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# last Sunday of each September, but less than a month later repealed the |
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# act," (page 220), that year-round daylight saving time was in effect |
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# from 1942-02-09 to 1945-09-30 (page 221, with no time of day given for |
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# when clocks changed) and that clocks were changed by 30 minutes |
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# effective the second Sunday of June, 1947 (page 219, with no time of |
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# day given for when clocks changed). A footnote for the 1933 changes |
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# cites Session Laws of Hawaii 1933, "Act. 90 (approved 26 Apr. 1933) |
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# and Act 163 (approved 21 May 1933)." |
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# From Arthur David Olson (2011-01-19): |
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# The following is from "Laws of the Territory of Hawaii Passed by the |
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# Seventeenth Legislature: Regular Session 1933," available (as of |
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# 2011-01-19) at American University's Pence Law Library. Page 85: "Act |
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# 90...At 2 o'clock ante meridian of the last Sunday in April of each |
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# year, the standard time of this Territory shall be advanced one |
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# hour...This Act shall take effect upon its approval. Approved this 26th |
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# day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of |
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# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is |
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# hereby repealed...This Act shall take effect upon its approval, upon |
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# which date the standard time of this Territory shall be restored to |
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# that existing immediately prior to the taking effect of said Act 90. |
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# Approved this 21st day of May, A. D. 1933. LAWRENCE M. JUDD, Governor |
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# of the Territory of Hawaii." |
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# |
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# Note that 1933-05-21 was a Sunday. |
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# We're left to guess the time of day when Act 163 was approved; guess noon. |
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Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 #Schmitt&Cox |
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-10:30 - HST 1933 Apr 30 2:00 #Laws 1933 |
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-10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12 |
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-10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2 |
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-10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Fox+2 |
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-10:30 US H%sT 1947 Jun 8 2:00 #Schmitt&Fox+2 |
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-10:00 - HST |
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# Now we turn to US areas that have diverged from the consensus since 1970. |
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@ -2496,6 +2606,21 @@ Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose |
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# the time was announced as "diez cinco"--the same time as here, indicating |
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# that has indeed switched to DST. Assume second Sunday from 2009 forward. |
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# From Steffen Thorsen (2011-03-08): |
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# Granma announced that Cuba is going to start DST on 2011-03-20 00:00:00 |
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# this year. Nothing about the end date known so far (if that has |
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# changed at all). |
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# |
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# Source: |
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# <a href="http://granma.co.cu/2011/03/08/nacional/artic01.html"> |
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# http://granma.co.cu/2011/03/08/nacional/artic01.html |
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# </a> |
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# |
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# Our info: |
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# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html"> |
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# http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html |
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# </a> |
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
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Rule Cuba 1928 only - Jun 10 0:00 1:00 D |
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Rule Cuba 1928 only - Oct 10 0:00 0 S |
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@ -2529,7 +2654,9 @@ Rule Cuba 2000 2004 - Apr Sun>=1 0:00s 1:00 D |
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Rule Cuba 2006 max - Oct lastSun 0:00s 0 S |
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Rule Cuba 2007 only - Mar Sun>=8 0:00s 1:00 D |
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Rule Cuba 2008 only - Mar Sun>=15 0:00s 1:00 D |
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Rule Cuba 2009 max - Mar Sun>=8 0:00s 1:00 D |
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Rule Cuba 2009 2010 - Mar Sun>=8 0:00s 1:00 D |
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Rule Cuba 2011 only - Mar Sun>=15 0:00s 1:00 D |
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Rule Cuba 2012 max - Mar Sun>=8 0:00s 1:00 D |
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# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
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Zone America/Havana -5:29:28 - LMT 1890 |
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Tom Lane
15 years ago