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5129 Update timezone info db to 2014g
*** 1,14 ****
- # <pre>
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# also includes Central America and the Caribbean
! # This data is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
! # tz@iana.org for general use in the future).
# From Paul Eggert (1999-03-22):
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
--- 1,14 ----
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# also includes Central America and the Caribbean
! # This file is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
! # tz@iana.org for general use in the future). For more, please see
! # the file CONTRIBUTING in the tz distribution.
# From Paul Eggert (1999-03-22):
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
*** 57,69 ****
#
# -- Robertson Davies, The diary of Samuel Marchbanks,
# Clarke, Irwin (1947), XIX, Sunday
#
# For more about the first ten years of DST in the United States, see
! # Robert Garland's <a href="http://www.clpgh.org/exhibit/dst.html">
! # Ten years of daylight saving from the Pittsburgh standpoint
! # (Carnegie Library of Pittsburgh, 1927)</a>.
#
# Shanks says that DST was called "War Time" in the US in 1918 and 1919.
# However, DST was imposed by the Standard Time Act of 1918, which
# was the first nationwide legal time standard, and apparently
# time was just called "Standard Time" or "Daylight Saving Time".
--- 57,69 ----
#
# -- Robertson Davies, The diary of Samuel Marchbanks,
# Clarke, Irwin (1947), XIX, Sunday
#
# For more about the first ten years of DST in the United States, see
! # Robert Garland, Ten years of daylight saving from the Pittsburgh standpoint
! # (Carnegie Library of Pittsburgh, 1927).
! # http://www.clpgh.org/exhibit/dst.html
#
# Shanks says that DST was called "War Time" in the US in 1918 and 1919.
# However, DST was imposed by the Standard Time Act of 1918, which
# was the first nationwide legal time standard, and apparently
# time was just called "Standard Time" or "Daylight Saving Time".
*** 78,92 ****
# Daylight Saving Time in the US was by local option, except during wartime.
# From Arthur David Olson (2000-09-25):
# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama.
# In the introduction, Oboler spoke of "Eastern Peace Time."
! # An AltaVista search turned up
! # <a href="http://rowayton.org/rhs/hstaug45.html">:
# "When the time is announced over the radio now, it is 'Eastern Peace
# Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful."
! # </a> (August 1945) by way of confirmation.
# From Joseph Gallant citing
# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
# At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set
# to switch to London for Attlee's address, but the American people
--- 78,92 ----
# Daylight Saving Time in the US was by local option, except during wartime.
# From Arthur David Olson (2000-09-25):
# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama.
# In the introduction, Oboler spoke of "Eastern Peace Time."
! # An AltaVista search turned up:
! # http://rowayton.org/rhs/hstaug45.html
# "When the time is announced over the radio now, it is 'Eastern Peace
# Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful."
! # (August 1945) by way of confirmation.
# From Joseph Gallant citing
# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
# At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set
# to switch to London for Attlee's address, but the American people
*** 180,190 ****
# USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
# USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
# USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
# USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
# USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
! # USA - " - 9 H BEHIND UTC APR 3 - OCT 30
# USA HAWAII 10 H BEHIND UTC
# USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
# From Arthur David Olson (1989-01-21):
# The above dates are for 1988.
--- 180,190 ----
# USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
# USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
# USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
# USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
# USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
! # USA " 9 H BEHIND UTC APR 3 - OCT 30
# USA HAWAII 10 H BEHIND UTC
# USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
# From Arthur David Olson (1989-01-21):
# The above dates are for 1988.
*** 233,255 ****
# From Arthur David Olson, 2005-08-09
# The following was signed into law on 2005-08-08.
#
# H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
! # (a) Amendment- Section 3(a) of the Uniform Time Act of 1966 (15
# U.S.C. 260a(a)) is amended--
! # (1) by striking 'first Sunday of April' and inserting 'second
! # Sunday of March'; and
! # (2) by striking 'last Sunday of October' and inserting 'first
# Sunday of November'.
! # (b) Effective Date- Subsection (a) shall take effect 1 year after the
# date of enactment of this Act or March 1, 2007, whichever is later.
! # (c) Report to Congress- Not later than 9 months after the effective
# date stated in subsection (b), the Secretary shall report to Congress
# on the impact of this section on energy consumption in the United
# States.
! # (d) Right to Revert- Congress retains the right to revert the
# Daylight Saving Time back to the 2005 time schedules once the
# Department study is complete.
# US eastern time, represented by New York
--- 233,255 ----
# From Arthur David Olson, 2005-08-09
# The following was signed into law on 2005-08-08.
#
# H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
! # (a) Amendment.--Section 3(a) of the Uniform Time Act of 1966 (15
# U.S.C. 260a(a)) is amended--
! # (1) by striking "first Sunday of April" and inserting "second
! # Sunday of March"; and
! # (2) by striking "last Sunday of October" and inserting "first
# Sunday of November'.
! # (b) Effective Date.--Subsection (a) shall take effect 1 year after the
# date of enactment of this Act or March 1, 2007, whichever is later.
! # (c) Report to Congress.--Not later than 9 months after the effective
# date stated in subsection (b), the Secretary shall report to Congress
# on the impact of this section on energy consumption in the United
# States.
! # (d) Right to Revert.--Congress retains the right to revert the
# Daylight Saving Time back to the 2005 time schedules once the
# Department study is complete.
# US eastern time, represented by New York
*** 267,277 ****
# and didn't change their clocks for Daylight Saving ... so that their
# reports will always have times which are 5 hours behind UTC.
# From Paul Eggert (2005-08-26):
# According to today's Huntsville Times
! # <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1>
# a few towns on Alabama's "eastern border with Georgia, such as Phenix City
# in Russell County, Lanett in Chambers County and some towns in Lee County,
# set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
# Roberts, city administrator in Phenix City. as saying "We are in the Central
# time zone, but we do go by the Eastern time zone because so many people work
--- 267,277 ----
# and didn't change their clocks for Daylight Saving ... so that their
# reports will always have times which are 5 hours behind UTC.
# From Paul Eggert (2005-08-26):
# According to today's Huntsville Times
! # http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1
# a few towns on Alabama's "eastern border with Georgia, such as Phenix City
# in Russell County, Lanett in Chambers County and some towns in Lee County,
# set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
# Roberts, city administrator in Phenix City. as saying "We are in the Central
# time zone, but we do go by the Eastern time zone because so many people work
*** 330,368 ****
-6:00 US C%sT 1946
-6:00 Chicago C%sT 1967
-6:00 US C%sT
# Oliver County, ND switched from mountain to central time on 1992-10-25.
Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:14:48
! -7:00 US M%sT 1992 Oct 25 02:00
-6:00 US C%sT
# Morton County, ND, switched from mountain to central time on
# 2003-10-26, except for the area around Mandan which was already central time.
# See <http://dmses.dot.gov/docimages/p63/135818.pdf>.
# Officially this switch also included part of Sioux County, and
# Jones, Mellette, and Todd Counties in South Dakota;
# but in practice these other counties were already observing central time.
# See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>.
Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21
! -7:00 US M%sT 2003 Oct 26 02:00
-6:00 US C%sT
# From Josh Findley (2011-01-21):
# ...it appears that Mercer County, North Dakota, changed from the
# mountain time zone to the central time zone at the last transition from
# daylight-saving to standard time (on Nov. 7, 2010):
- # <a href="http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm">
# http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm
- # </a>
- # <a href="http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html">
# http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html
- # </a>
# From Andy Lipscomb (2011-01-24):
# ...according to the Census Bureau, the largest city is Beulah (although
# it's commonly referred to as Beulah-Hazen, with Hazen being the next
# largest city in Mercer County). Google Maps places Beulah's city hall
! # at 4715'51" north, 10146'40" west, which yields an offset of 6h47'07".
Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53
-7:00 US M%sT 2010 Nov 7 2:00
-6:00 US C%sT
--- 330,365 ----
-6:00 US C%sT 1946
-6:00 Chicago C%sT 1967
-6:00 US C%sT
# Oliver County, ND switched from mountain to central time on 1992-10-25.
Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:14:48
! -7:00 US M%sT 1992 Oct 25 2:00
-6:00 US C%sT
# Morton County, ND, switched from mountain to central time on
# 2003-10-26, except for the area around Mandan which was already central time.
# See <http://dmses.dot.gov/docimages/p63/135818.pdf>.
# Officially this switch also included part of Sioux County, and
# Jones, Mellette, and Todd Counties in South Dakota;
# but in practice these other counties were already observing central time.
# See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>.
Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21
! -7:00 US M%sT 2003 Oct 26 2:00
-6:00 US C%sT
# From Josh Findley (2011-01-21):
# ...it appears that Mercer County, North Dakota, changed from the
# mountain time zone to the central time zone at the last transition from
# daylight-saving to standard time (on Nov. 7, 2010):
# http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm
# http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html
# From Andy Lipscomb (2011-01-24):
# ...according to the Census Bureau, the largest city is Beulah (although
# it's commonly referred to as Beulah-Hazen, with Hazen being the next
# largest city in Mercer County). Google Maps places Beulah's city hall
! # at 47 degrees 15' 51" N, 101 degrees 46' 40" W, which yields an offset
! # of 6h47'07".
Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53
-7:00 US M%sT 2010 Nov 7 2:00
-6:00 US C%sT
*** 389,401 ****
-7:00 US M%sT
# US Pacific time, represented by Los Angeles
#
# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
! # Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties,
! # and the northern three-quarters of Idaho county),
! # most of Nevada, most of Oregon, and Washington
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
Rule CA 1948 only - Mar 14 2:00 1:00 D
Rule CA 1949 only - Jan 1 2:00 0 S
Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
--- 386,399 ----
-7:00 US M%sT
# US Pacific time, represented by Los Angeles
#
# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
! # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, Idaho county
! # north of the Salmon River, and the towns of Burgdorf and Warren),
! # Nevada (except West Wendover), Oregon (except the northern 3/4 of
! # Malheur county), and Washington
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
Rule CA 1948 only - Mar 14 2:00 1:00 D
Rule CA 1949 only - Jan 1 2:00 0 S
Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
*** 422,440 ****
# permanently inhabited in 1867 by anyone using either calendar.
# (Yakutat was colonized by the Russians in 1799, but the settlement
# was destroyed in 1805 by a Yakutat-kon war party.) However, there
# were nearby inhabitants in some cases and for our purposes perhaps
# it's best to simply use the official transition.
- #
! # From Steve Ferguson (2011-01-31):
! # The author lives in Alaska and many of the references listed are only
! # available to Alaskan residents.
#
! # <a href="http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98">
! # http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98
! # </a>
# From Arthur David Olson (2011-02-01):
# Here's database-relevant material from the 2001 "Alaska History" article:
#
# On September 20 [1979]...DOT...officials decreed that on April 27,
--- 420,441 ----
# permanently inhabited in 1867 by anyone using either calendar.
# (Yakutat was colonized by the Russians in 1799, but the settlement
# was destroyed in 1805 by a Yakutat-kon war party.) However, there
# were nearby inhabitants in some cases and for our purposes perhaps
# it's best to simply use the official transition.
! # From Paul Eggert (2014-07-18):
! # One opinion of the early-1980s turmoil in Alaska over time zones and
! # daylight saving time appeared as graffiti on a Juneau airport wall:
! # "Welcome to Juneau. Please turn your watch back to the 19th century."
! # See: Turner W. Alaska's four time zones now two. NY Times 1983-11-01.
! # http://www.nytimes.com/1983/11/01/us/alaska-s-four-time-zones-now-two.html
#
! # Steve Ferguson (2011-01-31) referred to the following source:
! # Norris F. Keeping time in Alaska: national directives, local response.
! # Alaska History 2001;16(1-2).
! # http://alaskahistoricalsociety.org/discover-alaska/glimpses-of-the-past/keeping-time-in-alaska/
# From Arthur David Olson (2011-02-01):
# Here's database-relevant material from the 2001 "Alaska History" article:
#
# On September 20 [1979]...DOT...officials decreed that on April 27,
*** 456,471 ****
# Nation.)
# From Arthur David Olson (2011-02-09):
# I just spoke by phone with a staff member at the Metlakatla Indian
# Community office (using contact information available at
- # <a href="http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla">
# http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla
- # </a>).
# It's shortly after 1:00 here on the east coast of the United States;
# the staffer said it was shortly after 10:00 there. When I asked whether
! # that meant they were on Pacific time, they said no--they were on their
# own time. I asked about daylight saving; they said it wasn't used. I
# did not inquire about practices in the past.
# From Arthur David Olson (2011-08-17):
# For lack of better information, assume that Metlakatla's
--- 457,470 ----
# Nation.)
# From Arthur David Olson (2011-02-09):
# I just spoke by phone with a staff member at the Metlakatla Indian
# Community office (using contact information available at
# http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla
# It's shortly after 1:00 here on the east coast of the United States;
# the staffer said it was shortly after 10:00 there. When I asked whether
! # that meant they were on Pacific time, they said no - they were on their
# own time. I asked about daylight saving; they said it wasn't used. I
# did not inquire about practices in the past.
# From Arthur David Olson (2011-08-17):
# For lack of better information, assume that Metlakatla's
*** 494,504 ****
-8:46:18 - LMT 1900 Aug 20 12:00
-8:00 - PST 1942
-8:00 US P%sT 1946
-8:00 - PST 1969
-8:00 US P%sT 1983 Oct 30 2:00
! -8:00 - MeST
Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
-9:18:55 - LMT 1900 Aug 20 12:00
-9:00 - YST 1942
-9:00 US Y%sT 1946
-9:00 - YST 1969
--- 493,503 ----
-8:46:18 - LMT 1900 Aug 20 12:00
-8:00 - PST 1942
-8:00 US P%sT 1946
-8:00 - PST 1969
-8:00 US P%sT 1983 Oct 30 2:00
! -8:00 - PST
Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
-9:18:55 - LMT 1900 Aug 20 12:00
-9:00 - YST 1942
-9:00 US Y%sT 1946
-9:00 - YST 1969
*** 557,569 ****
# From Arthur David Olson (2010-12-09):
# "Hawaiian Time" by Robert C. Schmitt and Doak C. Cox appears on pages 207-225
# of volume 26 of The Hawaiian Journal of History (1992). As of 2010-12-09,
# the article is available at
- # <a href="http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf">
# http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf
- # </a>
# and indicates that standard time was adopted effective noon, January
# 13, 1896 (page 218), that in "1933, the Legislature decreed daylight
# saving for the period between the last Sunday of each April and the
# last Sunday of each September, but less than a month later repealed the
# act," (page 220), that year-round daylight saving time was in effect
--- 556,566 ----
*** 590,619 ****
# of the Territory of Hawaii."
#
# Note that 1933-05-21 was a Sunday.
# We're left to guess the time of day when Act 163 was approved; guess noon.
! Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 #Schmitt&Cox
! -10:30 - HST 1933 Apr 30 2:00 #Laws 1933
! -10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12
! -10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2
! -10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Cox+2
! -10:30 - HST 1947 Jun 8 2:00 #Schmitt&Cox+2
-10:00 - HST
-
Link Pacific/Honolulu Pacific/Johnston
# Now we turn to US areas that have diverged from the consensus since 1970.
# Arizona mostly uses MST.
# From Paul Eggert (2002-10-20):
#
# The information in the rest of this paragraph is derived from the
! # <a href="http://www.dlapr.lib.az.us/links/daylight.htm">
! # Daylight Saving Time web page (2002-01-23)</a> maintained by the
! # Arizona State Library, Archives and Public Records.
# Between 1944-01-01 and 1944-04-01 the State of Arizona used standard
# time, but by federal law railroads, airlines, bus lines, military
# personnel, and some engaged in interstate commerce continued to
# observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix
# Gazette says that was the date the law changed, and that 04-01 was
--- 587,616 ----
# of the Territory of Hawaii."
#
# Note that 1933-05-21 was a Sunday.
# We're left to guess the time of day when Act 163 was approved; guess noon.
! # Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00
! -10:30 - HST 1933 Apr 30 2:00
! -10:30 1:00 HDT 1933 May 21 12:00
! -10:30 - HST 1942 Feb 9 2:00
! -10:30 1:00 HDT 1945 Sep 30 2:00
! -10:30 - HST 1947 Jun 8 2:00
-10:00 - HST
Link Pacific/Honolulu Pacific/Johnston
# Now we turn to US areas that have diverged from the consensus since 1970.
# Arizona mostly uses MST.
# From Paul Eggert (2002-10-20):
#
# The information in the rest of this paragraph is derived from the
! # Daylight Saving Time web page
! # <http://www.dlapr.lib.az.us/links/daylight.htm> (2002-01-23)
! # maintained by the Arizona State Library, Archives and Public Records.
# Between 1944-01-01 and 1944-04-01 the State of Arizona used standard
# time, but by federal law railroads, airlines, bus lines, military
# personnel, and some engaged in interstate commerce continued to
# observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix
# Gazette says that was the date the law changed, and that 04-01 was
*** 623,636 ****
# Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.
#
# Shanks says the 1944 experiment came to an end on 1944-03-17.
# Go with the Arizona State Library instead.
Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42
! -7:00 US M%sT 1944 Jan 1 00:01
! -7:00 - MST 1944 Apr 1 00:01
! -7:00 US M%sT 1944 Oct 1 00:01
-7:00 - MST 1967
-7:00 US M%sT 1968 Mar 21
-7:00 - MST
# From Arthur David Olson (1988-02-13):
# A writer from the Inter Tribal Council of Arizona, Inc.,
--- 620,634 ----
# Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.
#
# Shanks says the 1944 experiment came to an end on 1944-03-17.
# Go with the Arizona State Library instead.
+ # Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42
! -7:00 US M%sT 1944 Jan 1 0:01
! -7:00 - MST 1944 Apr 1 0:01
! -7:00 US M%sT 1944 Oct 1 0:01
-7:00 - MST 1967
-7:00 US M%sT 1968 Mar 21
-7:00 - MST
# From Arthur David Olson (1988-02-13):
# A writer from the Inter Tribal Council of Arizona, Inc.,
*** 658,677 ****
-7:00 US M%sT
# Indiana
#
# For a map of Indiana's time zone regions, see:
! # <a href="http://www.mccsc.edu/time.html">
! # What time is it in Indiana?
! # </a> (2006-03-01)
#
# From Paul Eggert (2007-08-17):
# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
# with the following exceptions:
#
# - Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
! # Vandenburgh, and Warrick counties have been like America/Chicago.
#
# - Dearborn and Ohio counties have been like America/New_York.
#
# - Clark, Floyd, and Harrison counties have been like
# America/Kentucky/Louisville.
--- 656,673 ----
-7:00 US M%sT
# Indiana
#
# For a map of Indiana's time zone regions, see:
! # http://en.wikipedia.org/wiki/Time_in_Indiana
#
# From Paul Eggert (2007-08-17):
# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
# with the following exceptions:
#
# - Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
! # Vanderburgh, and Warrick counties have been like America/Chicago.
#
# - Dearborn and Ohio counties have been like America/New_York.
#
# - Clark, Floyd, and Harrison counties have been like
# America/Kentucky/Louisville.
*** 686,711 ****
#
# Other than Indianapolis, the Indiana place names are so nondescript
# that they would be ambiguous if we left them at the 'America' level.
# So we reluctantly put them all in a subdirectory 'America/Indiana'.
! # From Paul Eggert (2005-08-16):
! # http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006.
!
! # From Nathan Stratton Treadway (2006-03-30):
! # http://www.dot.gov/affairs/dot0406.htm [3705 B]
! # From Deborah Goldsmith (2006-01-18):
! # http://dmses.dot.gov/docimages/pdf95/382329_web.pdf [2.9 MB]
! # From Paul Eggert (2006-01-20):
! # It says "DOT is relocating the time zone boundary in Indiana to move Starke,
# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
# Eastern Time Zone to the Central Time Zone.... The effective date of
! # this rule is 2:OO a.m. EST Sunday, April 2, 2006, which is the
# changeover date from standard time to Daylight Saving Time."
! # Strictly speaking, this means the affected counties will change their
! # clocks twice that night, but this obviously is in error. The intent
! # is that 01:59:59 EST be followed by 02:00:00 CDT.
# From Gwillim Law (2007-02-10):
# The Associated Press has been reporting that Pulaski County, Indiana is
# going to switch from Central to Eastern Time on March 11, 2007....
# http://www.indystar.com/apps/pbcs.dll/article?AID=/20070207/LOCAL190108/702070524/0/LOCAL
--- 682,701 ----
#
# Other than Indianapolis, the Indiana place names are so nondescript
# that they would be ambiguous if we left them at the 'America' level.
# So we reluctantly put them all in a subdirectory 'America/Indiana'.
! # From Paul Eggert (2014-06-26):
! # https://www.federalregister.gov/articles/2006/01/20/06-563/standard-time-zone-boundary-in-the-state-of-indiana
! # says "DOT is relocating the time zone boundary in Indiana to move Starke,
# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
# Eastern Time Zone to the Central Time Zone.... The effective date of
! # this rule is 2 a.m. EST Sunday, April 2, 2006, which is the
# changeover date from standard time to Daylight Saving Time."
! # Strictly speaking, this meant the affected counties changed their
! # clocks twice that night, but this obviously was in error. The intent
! # was that 01:59:59 EST be followed by 02:00:00 CDT.
# From Gwillim Law (2007-02-10):
# The Associated Press has been reporting that Pulaski County, Indiana is
# going to switch from Central to Eastern Time on March 11, 2007....
# http://www.indystar.com/apps/pbcs.dll/article?AID=/20070207/LOCAL190108/702070524/0/LOCAL
*** 873,886 ****
-6:00 1:00 CDT 1974 Oct 27 2:00
-5:00 US E%sT
#
# Wayne County, Kentucky
#
! # From
! # <a href="http://www.lake-cumberland.com/life/archive/news990129time.shtml">
! # Lake Cumberland LIFE
! # </a> (1999-01-29) via WKYM-101.7:
# Clinton County has joined Wayne County in asking the DoT to change from
# the Central to the Eastern time zone.... The Wayne County government made
# the same request in December. And while Russell County officials have not
# taken action, the majority of respondents to a poll conducted there in
# August indicated they would like to change to "fast time" also.
--- 863,875 ----
-6:00 1:00 CDT 1974 Oct 27 2:00
-5:00 US E%sT
#
# Wayne County, Kentucky
#
! # From Lake Cumberland LIFE
! # http://www.lake-cumberland.com/life/archive/news990129time.shtml
! # (1999-01-29) via WKYM-101.7:
# Clinton County has joined Wayne County in asking the DoT to change from
# the Central to the Eastern time zone.... The Wayne County government made
# the same request in December. And while Russell County officials have not
# taken action, the majority of respondents to a poll conducted there in
# August indicated they would like to change to "fast time" also.
*** 893,905 ****
# (-0500) time. They won't "fall back" this year. See Sara Shipley,
# The difference an hour makes, Nando Times (2000-08-29 15:33 -0400).
#
# From Paul Eggert (2001-07-16):
# The final rule was published in the
! # <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22">
! # Federal Register 65, 160 (2000-08-17), page 50154-50158.
! # </a>
#
Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
-6:00 US C%sT 1946
-6:00 - CST 1968
-6:00 US C%sT 2000 Oct 29 2:00
--- 882,893 ----
# (-0500) time. They won't "fall back" this year. See Sara Shipley,
# The difference an hour makes, Nando Times (2000-08-29 15:33 -0400).
#
# From Paul Eggert (2001-07-16):
# The final rule was published in the
! # Federal Register 65, 160 (2000-08-17), pp 50154-50158.
! # http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22
#
Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
-6:00 US C%sT 1946
-6:00 - CST 1968
-6:00 US C%sT 2000 Oct 29 2:00
*** 920,932 ****
# so omit that change for now.
# See America/Indiana/Knox for the Starke County, IN change.
# See America/North_Dakota/Center for the Oliver County, ND change.
# West Wendover, NV officially switched from Pacific to mountain time on
# 1999-10-31. See the
! # <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15">
! # Federal Register 64, 203 (1999-10-21), page 56705-56707.
! # </a>
# However, the Federal Register says that West Wendover already operated
# on mountain time, and the rule merely made this official;
# hence a separate tz entry is not needed.
# Michigan
--- 908,919 ----
# so omit that change for now.
# See America/Indiana/Knox for the Starke County, IN change.
# See America/North_Dakota/Center for the Oliver County, ND change.
# West Wendover, NV officially switched from Pacific to mountain time on
# 1999-10-31. See the
! # Federal Register 64, 203 (1999-10-21), pp 56705-56707.
! # http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15
# However, the Federal Register says that West Wendover already operated
# on mountain time, and the rule merely made this official;
# hence a separate tz entry is not needed.
# Michigan
*** 1016,1041 ****
#
# Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
# which I found in the UCLA library.
#
- # <a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
# William Willett, The Waste of Daylight, 19th edition
! # </a> (1914-03)
#
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# See the 'europe' file for Greenland.
# Canada
! # From Alain LaBont<e'> (1994-11-14):
# I post here the time zone abbreviations standardized in Canada
# for both English and French in the CAN/CSA-Z234.4-89 standard....
#
! # UTC Standard time Daylight savings time
# offset French English French English
# -2:30 - - HAT NDT
# -3 - - HAA ADT
# -3:30 HNT NST - -
# -4 HNA AST HAE EDT
--- 1003,1028 ----
#
# Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
# which I found in the UCLA library.
#
# William Willett, The Waste of Daylight, 19th edition
! # <http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
! # [PDF] (1914-03)
#
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# See the 'europe' file for Greenland.
# Canada
! # From Alain LaBonté (1994-11-14):
# I post here the time zone abbreviations standardized in Canada
# for both English and French in the CAN/CSA-Z234.4-89 standard....
#
! # UTC Standard time Daylight saving time
# offset French English French English
# -2:30 - - HAT NDT
# -3 - - HAA ADT
# -3:30 HNT NST - -
# -4 HNA AST HAE EDT
*** 1044,1054 ****
# -7 HNR MST HAP PDT
# -8 HNP PST HAY YDT
# -9 HNY YST - -
#
# HN: Heure Normale ST: Standard Time
! # HA: Heure Avanc<e'>e DT: Daylight saving Time
#
# A: de l'Atlantique Atlantic
# C: du Centre Central
# E: de l'Est Eastern
# M: Mountain
--- 1031,1041 ----
# -7 HNR MST HAP PDT
# -8 HNP PST HAY YDT
# -9 HNY YST - -
#
# HN: Heure Normale ST: Standard Time
! # HA: Heure Avancée DT: Daylight saving Time
#
# A: de l'Atlantique Atlantic
# C: du Centre Central
# E: de l'Est Eastern
# M: Mountain
*** 1059,1069 ****
# Y: du Yukon Yukon
#
# From Paul Eggert (1994-11-22):
# Alas, this sort of thing must be handled by localization software.
! # Unless otherwise specified, the data for Canada are all from Shanks
# & Pottenger.
# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31,
# 2007-03-01):
# The British Columbia government announced yesterday that it will
--- 1046,1056 ----
# Y: du Yukon Yukon
#
# From Paul Eggert (1994-11-22):
# Alas, this sort of thing must be handled by localization software.
! # Unless otherwise specified, the data entries for Canada are all from Shanks
# & Pottenger.
# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31,
# 2007-03-01):
# The British Columbia government announced yesterday that it will
*** 1108,1137 ****
# An amendment to the Interpretation Act was registered on February 19/2007....
# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf
# From Paul Eggert (2006-04-25):
# H. David Matthews and Mary Vincent's map
- # <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
# "It's about TIME", _Canadian Geographic_ (September-October 1998)
! # </a> contains detailed boundaries for regions observing nonstandard
# time and daylight saving time arrangements in Canada circa 1998.
#
! # INMS, the Institute for National Measurement Standards in Ottawa, has <a
! # href="http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php">
# information about standard and daylight saving time zones in Canada.
! # </a> (updated periodically).
# Its unofficial information is often taken from Matthews and Vincent.
# From Paul Eggert (2006-06-27):
# For now, assume all of DST-observing Canada will fall into line with the
# new US DST rules,
# From Chris Walton (2011-12-01)
# In the first of Tammy Hardwick's articles
- # <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
- # </a>
# she quotes the Friday November 1/1918 edition of the Creston Review.
# The quote includes these two statements:
# 'Sunday the CPR went back to the old system of time...'
# '... The daylight saving scheme was dropped all over Canada at the same time,'
# These statements refer to a transition from daylight time to standard time
--- 1095,1122 ----
# An amendment to the Interpretation Act was registered on February 19/2007....
# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf
# From Paul Eggert (2006-04-25):
# H. David Matthews and Mary Vincent's map
# "It's about TIME", _Canadian Geographic_ (September-October 1998)
! # http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
! # contains detailed boundaries for regions observing nonstandard
# time and daylight saving time arrangements in Canada circa 1998.
#
! # INMS, the Institute for National Measurement Standards in Ottawa, has
# information about standard and daylight saving time zones in Canada.
! # http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php
! # (updated periodically).
# Its unofficial information is often taken from Matthews and Vincent.
# From Paul Eggert (2006-06-27):
# For now, assume all of DST-observing Canada will fall into line with the
# new US DST rules,
# From Chris Walton (2011-12-01)
# In the first of Tammy Hardwick's articles
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
# she quotes the Friday November 1/1918 edition of the Creston Review.
# The quote includes these two statements:
# 'Sunday the CPR went back to the old system of time...'
# '... The daylight saving scheme was dropped all over Canada at the same time,'
# These statements refer to a transition from daylight time to standard time
*** 1195,1207 ****
# changes to the Newfoundland Standard Time Act have been proclaimed.
# The change in the Act stipulates that the change from Daylight Savings
# Time to Standard Time and from Standard Time to Daylight Savings Time
# now occurs at 2:00AM.
# ...
- # <a href="http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.htm">
# http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.htm
- # </a>
# ...
# MICHAEL PELLEY | Manager of Enterprise Architecture - Solution Delivery
# Office of the Chief Information Officer
# Executive Council
# Government of Newfoundland & Labrador
--- 1180,1190 ----
*** 1353,1371 ****
# Matthews and Vincent (1998) also write that Quebec east of the -63
# meridian is supposed to observe AST, but residents as far east as
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
# The Quebec department of justice writes in
! # "The situation in Minganie and Basse-Cote-Nord"
# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
# that the coastal strip from just east of Natashquan to Blanc-Sablon
# observes Atlantic standard time all year round.
# http://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
# says this common practice was codified into law as of 2007.
# For lack of better info, guess this practice began around 1970, contra to
# Shanks & Pottenger who have this region observing AST/ADT.
- # for post-1970 data America/Puerto_Rico.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mont 1917 only - Mar 25 2:00 1:00 D
Rule Mont 1917 only - Apr 24 0:00 0 S
Rule Mont 1919 only - Mar 31 2:30 1:00 D
--- 1336,1353 ----
# Matthews and Vincent (1998) also write that Quebec east of the -63
# meridian is supposed to observe AST, but residents as far east as
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
# The Quebec department of justice writes in
! # "The situation in Minganie and Basse-Côte-Nord"
# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
# that the coastal strip from just east of Natashquan to Blanc-Sablon
# observes Atlantic standard time all year round.
# http://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
# says this common practice was codified into law as of 2007.
# For lack of better info, guess this practice began around 1970, contra to
# Shanks & Pottenger who have this region observing AST/ADT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mont 1917 only - Mar 25 2:00 1:00 D
Rule Mont 1917 only - Apr 24 0:00 0 S
Rule Mont 1919 only - Mar 31 2:30 1:00 D
*** 1375,1396 ****
Rule Mont 1921 only - May 1 2:00 1:00 D
Rule Mont 1922 only - Apr 30 2:00 1:00 D
Rule Mont 1924 only - May 17 2:00 1:00 D
Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
! # The 1927-to-1937 rules can be expressed more simply as
! # Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
! # Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
! # The rules below avoid use of 24:00
! # (which pre-1998 versions of zic cannot handle).
! Rule Mont 1927 only - May 1 0:00 1:00 D
! Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
! Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
! Rule Mont 1932 only - May 1 0:00 1:00 D
! Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
! Rule Mont 1933 only - Oct 1 0:00 0 S
! Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
--- 1357,1370 ----
Rule Mont 1921 only - May 1 2:00 1:00 D
Rule Mont 1922 only - Apr 30 2:00 1:00 D
Rule Mont 1924 only - May 17 2:00 1:00 D
Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
! Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
! Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
! Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D
! Rule Mont 1938 1939 - Sep lastSun 0:00 0 S
Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
*** 1422,1445 ****
# effective Saturday, 1912-06-22, 22:00; the article mentions that
# Port Arthur (now part of Thunder Bay, Ontario) as well as Moose Jaw
# have already done so. In Orillia DST was to run until Saturday,
# 1912-08-31 (no time mentioned), but it was met with considerable
# hostility from certain segments of the public, and was revoked after
! # only two weeks -- I copied it as Saturday, 1912-07-07, 22:00, but
# presumably that should be -07-06. (1912-06-19, -07-12; also letters
# earlier in June).
#
# Kenora, Ontario, was to abandon DST on 1914-06-01 (-05-21).
# From Paul Eggert (1997-10-17):
# Mark Brader writes that an article in the 1997-10-14 Toronto Star
# says that Atikokan, Ontario currently does not observe DST,
# but will vote on 11-10 whether to use EST/EDT.
! # He also writes that the
! # <a href="http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html">
! # Ontario Time Act (1990, Chapter T.9)
! # </a>
# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
# Officially Atikokan is therefore on CST/CDT, and most likely this report
# concerns a non-official time observed as a matter of local practice.
#
# From Paul Eggert (2000-10-02):
--- 1396,1417 ----
# effective Saturday, 1912-06-22, 22:00; the article mentions that
# Port Arthur (now part of Thunder Bay, Ontario) as well as Moose Jaw
# have already done so. In Orillia DST was to run until Saturday,
# 1912-08-31 (no time mentioned), but it was met with considerable
# hostility from certain segments of the public, and was revoked after
! # only two weeks - I copied it as Saturday, 1912-07-07, 22:00, but
# presumably that should be -07-06. (1912-06-19, -07-12; also letters
# earlier in June).
#
# Kenora, Ontario, was to abandon DST on 1914-06-01 (-05-21).
# From Paul Eggert (1997-10-17):
# Mark Brader writes that an article in the 1997-10-14 Toronto Star
# says that Atikokan, Ontario currently does not observe DST,
# but will vote on 11-10 whether to use EST/EDT.
! # He also writes that the Ontario Time Act (1990, Chapter T.9)
! # http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html
# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
# Officially Atikokan is therefore on CST/CDT, and most likely this report
# concerns a non-official time observed as a matter of local practice.
#
# From Paul Eggert (2000-10-02):
*** 1514,1526 ****
#
# "Standard Time and Time Zones in Canada" appeared in
# The Journal of The Royal Astronomical Society of Canada,
# volume 26, number 2 (February 1932) and, as of 2010-07-17,
# was available at
- # <a href="http://adsabs.harvard.edu/full/1932JRASC..26...49S">
# http://adsabs.harvard.edu/full/1932JRASC..26...49S
- # </a>
#
# It includes the text below (starting on page 57):
#
# A list of the places in Canada using daylight saving time would
# require yearly revision. From information kindly furnished by
--- 1486,1496 ----
*** 1534,1556 ****
# Nova Scotia In Halifax only.
# New Brunswick In St. John only.
# Quebec In the following places:
# Montreal Lachine
# Quebec Mont-Royal
! # Levis Iberville
! # St. Lambert Cap de la Madeleine
# Verdun Loretteville
# Westmount Richmond
! # Outremont St. Jerome
# Longueuil Greenfield Park
# Arvida Waterloo
# Chambly-Canton Beaulieu
# Melbourne La Tuque
! # St. Theophile Buckingham
# Ontario Used generally in the cities and towns along
# the southerly part of the province. Not
! # used in the northwesterlhy part.
# Manitoba Not used.
# Saskatchewan In Regina only.
# Alberta Not used.
# British Columbia Not used.
#
--- 1504,1526 ----
# Nova Scotia In Halifax only.
# New Brunswick In St. John only.
# Quebec In the following places:
# Montreal Lachine
# Quebec Mont-Royal
! # Lévis Iberville
! # St. Lambert Cap de la Madelèine
# Verdun Loretteville
# Westmount Richmond
! # Outremont St. Jérôme
# Longueuil Greenfield Park
# Arvida Waterloo
# Chambly-Canton Beaulieu
# Melbourne La Tuque
! # St. Théophile Buckingham
# Ontario Used generally in the cities and towns along
# the southerly part of the province. Not
! # used in the northwesterly part.
# Manitoba Not used.
# Saskatchewan In Regina only.
# Alberta Not used.
# British Columbia Not used.
#
*** 1650,1660 ****
# March 27, 1987 ... said ...
# "between two o'clock Central Standard Time in the morning of
# the first Sunday of April of each year and two o'clock Central
# Standard Time in the morning of the last Sunday of October next
# following, one hour in advance of Central Standard Time."...
! # I believe that the English legislation [of the old time act] had =
# been assented to (March 22, 1967)....
# Also, as far as I can tell, there was no order-in-council varying
# the time of Daylight Saving Time for 2005 and so the provisions of
# the 1987 version would apply - the changeover was at 2:00 Central
# Standard Time (i.e. not until 3:00 Central Daylight Time).
--- 1620,1630 ----
# March 27, 1987 ... said ...
# "between two o'clock Central Standard Time in the morning of
# the first Sunday of April of each year and two o'clock Central
# Standard Time in the morning of the last Sunday of October next
# following, one hour in advance of Central Standard Time."...
! # I believe that the English legislation [of the old time act] had
# been assented to (March 22, 1967)....
# Also, as far as I can tell, there was no order-in-council varying
# the time of Daylight Saving Time for 2005 and so the provisions of
# the 1987 version would apply - the changeover was at 2:00 Central
# Standard Time (i.e. not until 3:00 Central Daylight Time).
*** 1828,1853 ****
# (includes the cities of Dawson Creek and Fort St. John)
# Earlier this year I stumbled across a detailed article about the time
# keeping history of Creston; it was written by Tammy Hardwick who is the
# manager of the Creston & District Museum. The article was written in May 2009.
- # <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
- # </a>
# According to the article, Creston has not changed its clocks since June 1918.
# i.e. Creston has been stuck on UTC-7 for 93 years.
# Dawson Creek, on the other hand, changed its clocks as recently as April 1972.
# Unfortunately the exact date for the time change in June 1918 remains
# unknown and will be difficult to ascertain. I e-mailed Tammy a few months
# ago to ask if Sunday June 2 was a reasonable guess. She said it was just
! # as plausible as any other date (in June). She also said that after writing the
! # article she had discovered another time change in 1916; this is the subject
! # of another article which she wrote in October 2010.
! # <a href="http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56">
# http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56
- # </a>
# Here is a summary of the three clock change events in Creston's history:
# 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7)
# Exact date unknown
# 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
--- 1798,1819 ----
# (includes the cities of Dawson Creek and Fort St. John)
# Earlier this year I stumbled across a detailed article about the time
# keeping history of Creston; it was written by Tammy Hardwick who is the
# manager of the Creston & District Museum. The article was written in May 2009.
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
# According to the article, Creston has not changed its clocks since June 1918.
# i.e. Creston has been stuck on UTC-7 for 93 years.
# Dawson Creek, on the other hand, changed its clocks as recently as April 1972.
# Unfortunately the exact date for the time change in June 1918 remains
# unknown and will be difficult to ascertain. I e-mailed Tammy a few months
# ago to ask if Sunday June 2 was a reasonable guess. She said it was just
! # as plausible as any other date (in June). She also said that after writing
! # the article she had discovered another time change in 1916; this is the
! # subject of another article which she wrote in October 2010.
# http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56
# Here is a summary of the three clock change events in Creston's history:
# 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7)
# Exact date unknown
# 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
*** 1862,1874 ****
# Creston did not oblige.
# note#3:
# There is no guarantee that Creston will remain on Mountain Standard Time
# (UTC-7) forever.
# The subject was debated at least once this year by the town Council.
- # <a href="http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html">
# http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
- # </a>
# During a period WWII, summer time (Daylight saying) was mandatory in Canada.
# In Creston, that was handled by shifting the area to PST (-8:00) then applying
# summer time to cause the offset to be -7:00, the same as it had been before
# the change. It can be argued that the timezone abbreviation during this
--- 1828,1838 ----
*** 1918,1939 ****
# act which was last updated in 1987:
# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
# From Rives McDow (1999-09-04):
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
- # <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html">
# Nunavut moves to single time zone Oct. 31
! # </a>
#
# From Antoine Leca (1999-09-06):
# We then need to create a new timezone for the Kitikmeot region of Nunavut
# to differentiate it from the Yellowknife region.
# From Paul Eggert (1999-09-20):
- # <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html">
# Basic Facts: The New Territory
! # </a> (1999) reports that Pangnirtung operates on eastern time,
# and that Coral Harbour does not observe DST. We don't know when
# Pangnirtung switched to eastern time; we'll guess 1995.
# From Rives McDow (1999-11-08):
# On October 31, when the rest of Nunavut went to Central time,
--- 1882,1902 ----
# act which was last updated in 1987:
# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
# From Rives McDow (1999-09-04):
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
# Nunavut moves to single time zone Oct. 31
! # http://www.nunatsiaq.com/nunavut/nvt90903_13.html
#
# From Antoine Leca (1999-09-06):
# We then need to create a new timezone for the Kitikmeot region of Nunavut
# to differentiate it from the Yellowknife region.
# From Paul Eggert (1999-09-20):
# Basic Facts: The New Territory
! # http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html
! # (1999) reports that Pangnirtung operates on eastern time,
# and that Coral Harbour does not observe DST. We don't know when
# Pangnirtung switched to eastern time; we'll guess 1995.
# From Rives McDow (1999-11-08):
# On October 31, when the rest of Nunavut went to Central time,
*** 1957,1968 ****
# The Nunavut Intergovernmental Affairs hopes that they will "come to
# their senses", but the locals evidently don't see any problem with
# the current state of affairs.
# From Michaela Rodrigue, writing in the
! # <a href="http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html">
! # Nunatsiaq News (1999-11-19)</a>:
# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
# central - or Nunavut time - for government offices, and eastern time
# for municipal offices and schools.... Igloolik [was similar but then]
# made the switch to central time on Saturday, Nov. 6.
--- 1920,1931 ----
# The Nunavut Intergovernmental Affairs hopes that they will "come to
# their senses", but the locals evidently don't see any problem with
# the current state of affairs.
# From Michaela Rodrigue, writing in the
! # Nunatsiaq News (1999-11-19):
! # http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html
# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
# central - or Nunavut time - for government offices, and eastern time
# for municipal offices and schools.... Igloolik [was similar but then]
# made the switch to central time on Saturday, Nov. 6.
*** 1976,1989 ****
# Central, Eastern and Atlantic Time zones only uses Eastern Time.
# Gjoa Haven, Taloyoak and Pelly Bay all use Mountain instead of
# Central Time and Southampton Island [in the Central zone] is not
# required to use daylight savings.
! # From
! # <a href="http://www.nunatsiaq.com/archives/nunavut001130/nvt21110_02.html">
! # Nunavut now has two time zones
! # </a> (2000-11-10):
# The Nunavut government would allow its employees in Kugluktuk and
# Cambridge Bay to operate on central time year-round, putting them
# one hour behind the rest of Nunavut for six months during the winter.
# At the end of October the two communities had rebelled against
# Nunavut's unified time zone, refusing to shift to eastern time with
--- 1939,1950 ----
# Central, Eastern and Atlantic Time zones only uses Eastern Time.
# Gjoa Haven, Taloyoak and Pelly Bay all use Mountain instead of
# Central Time and Southampton Island [in the Central zone] is not
# required to use daylight savings.
! # From <http://www.nunatsiaq.com/archives/nunavut001130/nvt21110_02.html>
! # Nunavut now has two time zones (2000-11-10):
# The Nunavut government would allow its employees in Kugluktuk and
# Cambridge Bay to operate on central time year-round, putting them
# one hour behind the rest of Nunavut for six months during the winter.
# At the end of October the two communities had rebelled against
# Nunavut's unified time zone, refusing to shift to eastern time with
*** 2070,2082 ****
# somebody that might be able to tell me exactly when Resolute Bay went
# off Eastern Standard Time. I stumbled on the name "Aziz Kheraj." Aziz
# used to be the mayor of Resolute Bay and he apparently owns half the
# businesses including "South Camp Inn." This website has some info on
# Aziz:
- # <a href="http://www.uphere.ca/node/493">
# http://www.uphere.ca/node/493
- # </a>
#
# I sent Aziz an e-mail asking when Resolute Bay had stopped using
# Eastern Standard Time.
#
# Aziz responded quickly with this: "hi, The time was not changed for the
--- 2031,2041 ----
*** 2162,2174 ****
# Mexico
# From Paul Eggert (2001-03-05):
# The Investigation and Analysis Service of the
# Mexican Library of Congress (MLoC) has published a
- # <a href="http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/">
# history of Mexican local time (in Spanish)
! # </a>.
#
# Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC.
# (In all cases we go with the MLoC.)
# S&P report that Baja was at -8:00 in 1922/1923.
# S&P say the 1930 transition in Baja was 1930-11-16.
--- 2121,2132 ----
# Mexico
# From Paul Eggert (2001-03-05):
# The Investigation and Analysis Service of the
# Mexican Library of Congress (MLoC) has published a
# history of Mexican local time (in Spanish)
! # http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/
#
# Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC.
# (In all cases we go with the MLoC.)
# S&P report that Baja was at -8:00 in 1922/1923.
# S&P say the 1930 transition in Baja was 1930-11-16.
*** 2209,2221 ****
# The Decree was published in Mexico's Official Newspaper on January 4th.
#
# -------------- End Forwarded Message --------------
# From Paul Eggert (1996-06-12):
# For an English translation of the decree, see
- # <a href="http://mexico-travel.com/extra/timezone_eng.html">
# "Diario Oficial: Time Zone Changeover" (1996-01-04).
! # </a>
# From Rives McDow (1998-10-08):
# The State of Quintana Roo has reverted back to central STD and DST times
# (i.e. UTC -0600 and -0500 as of 1998-08-02).
--- 2167,2178 ----
# The Decree was published in Mexico's Official Newspaper on January 4th.
#
# -------------- End Forwarded Message --------------
# From Paul Eggert (1996-06-12):
# For an English translation of the decree, see
# "Diario Oficial: Time Zone Changeover" (1996-01-04).
! # http://mexico-travel.com/extra/timezone_eng.html
# From Rives McDow (1998-10-08):
# The State of Quintana Roo has reverted back to central STD and DST times
# (i.e. UTC -0600 and -0500 as of 1998-08-02).
*** 2223,2233 ****
# Effective April 4, 1999 at 2:00 AM local time, Sonora changed to the time
# zone 5 hours from the International Date Line, and will not observe daylight
# savings time so as to stay on the same time zone as the southern part of
# Arizona year round.
! # From Jesper Norgaard, translating
# <http://www.reforma.com/nacional/articulo/064327/> (2001-01-17):
# In Oaxaca, the 55.000 teachers from the Section 22 of the National
# Syndicate of Education Workers, refuse to apply daylight saving each
# year, so that the more than 10,000 schools work at normal hour the
# whole year.
--- 2180,2190 ----
# Effective April 4, 1999 at 2:00 AM local time, Sonora changed to the time
# zone 5 hours from the International Date Line, and will not observe daylight
# savings time so as to stay on the same time zone as the southern part of
# Arizona year round.
! # From Jesper Nørgaard, translating
# <http://www.reforma.com/nacional/articulo/064327/> (2001-01-17):
# In Oaxaca, the 55.000 teachers from the Section 22 of the National
# Syndicate of Education Workers, refuse to apply daylight saving each
# year, so that the more than 10,000 schools work at normal hour the
# whole year.
*** 2236,2287 ****
# <http://www.reforma.com/negocios_y_dinero/articulo/064481/> ... says
# (translated):...
# January 17, 2000 - The Energy Secretary, Ernesto Martens, announced
# that Summer Time will be reduced from seven to five months, starting
# this year....
! # <http://www.publico.com.mx/scripts/texto3.asp?action=pagina&pag=21&pos=p&secc=naci&date=01/17/2001>
# [translated], says "summer time will ... take effect on the first Sunday
# in May, and end on the last Sunday of September.
# From Arthur David Olson (2001-01-25):
# The 2001-01-24 traditional Washington Post contained the page one
# story "Timely Issue Divides Mexicans."...
# http://www.washingtonpost.com/wp-dyn/articles/A37383-2001Jan23.html
! # ... Mexico City Mayor Lopez Obrador "...is threatening to keep
# Mexico City and its 20 million residents on a different time than
! # the rest of the country..." In particular, Lopez Obrador would abolish
# observation of Daylight Saving Time.
- # <a href="http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre">
# Official statute published by the Energy Department
! # </a> (2001-02-01) shows Baja and Chihauhua as still using US DST rules,
! # and Sonora with no DST. This was reported by Jesper Norgaard (2001-02-03).
# From Paul Eggert (2001-03-03):
#
! # <a href="http://www.latimes.com/news/nation/20010303/t000018766.html">
# James F. Smith writes in today's LA Times
- # </a>
# * Sonora will continue to observe standard time.
! # * Last week Mexico City's mayor Andres Manuel Lopez Obrador decreed that
# the Federal District will not adopt DST.
# * 4 of 16 district leaders announced they'll ignore the decree.
# * The decree does not affect federal-controlled facilities including
# the airport, banks, hospitals, and schools.
#
# For now we'll assume that the Federal District will bow to federal rules.
! # From Jesper Norgaard (2001-04-01):
# I found some references to the Mexican application of daylight
# saving, which modifies what I had already sent you, stating earlier
# that a number of northern Mexican states would go on daylight
# saving. The modification reverts this to only cover Baja California
# (Norte), while all other states (except Sonora, who has no daylight
# saving all year) will follow the original decree of president
# Vicente Fox, starting daylight saving May 6, 2001 and ending
# September 30, 2001.
! # References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp>
# Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31)
# From Reuters (2001-09-04):
# Mexico's Supreme Court on Tuesday declared that daylight savings was
# unconstitutional in Mexico City, creating the possibility the
--- 2193,2243 ----
# <http://www.reforma.com/negocios_y_dinero/articulo/064481/> ... says
# (translated):...
# January 17, 2000 - The Energy Secretary, Ernesto Martens, announced
# that Summer Time will be reduced from seven to five months, starting
# this year....
! # http://www.publico.com.mx/scripts/texto3.asp?action=pagina&pag=21&pos=p&secc=naci&date=01/17/2001
# [translated], says "summer time will ... take effect on the first Sunday
# in May, and end on the last Sunday of September.
# From Arthur David Olson (2001-01-25):
# The 2001-01-24 traditional Washington Post contained the page one
# story "Timely Issue Divides Mexicans."...
# http://www.washingtonpost.com/wp-dyn/articles/A37383-2001Jan23.html
! # ... Mexico City Mayor López Obrador "...is threatening to keep
# Mexico City and its 20 million residents on a different time than
! # the rest of the country..." In particular, López Obrador would abolish
# observation of Daylight Saving Time.
# Official statute published by the Energy Department
! # http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre
! # (2001-02-01) shows Baja and Chihauhua as still using US DST rules,
! # and Sonora with no DST. This was reported by Jesper Nørgaard (2001-02-03).
# From Paul Eggert (2001-03-03):
#
! # http://www.latimes.com/news/nation/20010303/t000018766.html
# James F. Smith writes in today's LA Times
# * Sonora will continue to observe standard time.
! # * Last week Mexico City's mayor Andrés Manuel López Obrador decreed that
# the Federal District will not adopt DST.
# * 4 of 16 district leaders announced they'll ignore the decree.
# * The decree does not affect federal-controlled facilities including
# the airport, banks, hospitals, and schools.
#
# For now we'll assume that the Federal District will bow to federal rules.
! # From Jesper Nørgaard (2001-04-01):
# I found some references to the Mexican application of daylight
# saving, which modifies what I had already sent you, stating earlier
# that a number of northern Mexican states would go on daylight
# saving. The modification reverts this to only cover Baja California
# (Norte), while all other states (except Sonora, who has no daylight
# saving all year) will follow the original decree of president
# Vicente Fox, starting daylight saving May 6, 2001 and ending
# September 30, 2001.
! # References: "Diario de Monterrey" <http://www.diariodemonterrey.com/index.asp>
# Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31)
# From Reuters (2001-09-04):
# Mexico's Supreme Court on Tuesday declared that daylight savings was
# unconstitutional in Mexico City, creating the possibility the
*** 2289,2299 ****
# next year.... The Supreme Court's ruling takes effect at 2:00
# a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to
# standard time. "This is so residents of the Federal District are not
# subject to unexpected time changes," a statement from the court said.
! # From Jesper Norgaard Welen (2002-03-12):
# ... consulting my local grocery store(!) and my coworkers, they all insisted
# that a new decision had been made to reinstate US style DST in Mexico....
# http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20)
# confirms this. Sonora as usual is the only state where DST is not applied.
--- 2245,2255 ----
# next year.... The Supreme Court's ruling takes effect at 2:00
# a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to
# standard time. "This is so residents of the Federal District are not
# subject to unexpected time changes," a statement from the court said.
! # From Jesper Nørgaard Welen (2002-03-12):
# ... consulting my local grocery store(!) and my coworkers, they all insisted
# that a new decision had been made to reinstate US style DST in Mexico....
# http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20)
# confirms this. Sonora as usual is the only state where DST is not applied.
*** 2303,2354 ****
# > Mexico's House of Representatives has approved a proposal for northern
# > Mexico's border cities to share the same daylight saving schedule as
# > the United States.
# Now this has passed both the Congress and the Senate, so starting from
# 2010, some border regions will be the same:
- # <a href="http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/">
# http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/
- # </a>
- # <a href="http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939">
# http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939
- # </a>
# (Spanish)
#
# Could not find the new law text, but the proposed law text changes are here:
- # <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf">
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf
- # </a>
# (Gaceta Parlamentaria)
#
# There is also a list of the votes here:
- # <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html">
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
- # </a>
#
# Our page:
- # <a href="http://www.timeanddate.com/news/time/north-mexico-dst-change.html">
# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
- # </a>
# From Arthur David Olson (2010-01-20):
# The page
- # <a href="http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010">
# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
- # </a>
# includes this text:
# En los municipios fronterizos de Tijuana y Mexicali en Baja California;
! # Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila;
! # Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en
! # Tamaulipas, la aplicación de este horario estacional surtirá efecto
! # desde las dos horas del segundo domingo de marzo y concluirá a las dos
# horas del primer domingo de noviembre.
# En los municipios fronterizos que se encuentren ubicados en la franja
! # fronteriza norte en el territorio comprendido entre la línea
! # internacional y la línea paralela ubicada a una distancia de veinte
! # kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el
! # interior del país, la aplicación de este horario estacional surtirá
! # efecto desde las dos horas del segundo domingo de marzo y concluirá a
# las dos horas del primer domingo de noviembre.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
Rule Mexico 1939 only - Jun 25 0:00 0 S
--- 2259,2298 ----
# > Mexico's House of Representatives has approved a proposal for northern
# > Mexico's border cities to share the same daylight saving schedule as
# > the United States.
# Now this has passed both the Congress and the Senate, so starting from
# 2010, some border regions will be the same:
# http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/
# http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939
# (Spanish)
#
# Could not find the new law text, but the proposed law text changes are here:
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf
# (Gaceta Parlamentaria)
#
# There is also a list of the votes here:
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
#
# Our page:
# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
# From Arthur David Olson (2010-01-20):
# The page
# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
# includes this text:
# En los municipios fronterizos de Tijuana y Mexicali en Baja California;
! # Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila;
! # Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en
! # Tamaulipas, la aplicación de este horario estacional surtirá efecto
! # desde las dos horas del segundo domingo de marzo y concluirá a las dos
# horas del primer domingo de noviembre.
# En los municipios fronterizos que se encuentren ubicados en la franja
! # fronteriza norte en el territorio comprendido entre la línea
! # internacional y la línea paralela ubicada a una distancia de veinte
! # kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el
! # interior del país, la aplicación de este horario estacional surtirá
! # efecto desde las dos horas del segundo domingo de marzo y concluirá a
# las dos horas del primer domingo de noviembre.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
Rule Mexico 1939 only - Jun 25 0:00 0 S
*** 2363,2389 ****
Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D
Rule Mexico 2001 only - Sep lastSun 2:00 0 S
Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D
Rule Mexico 2002 max - Oct lastSun 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! # Quintana Roo
Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56
-6:00 - CST 1981 Dec 23
-5:00 Mexico E%sT 1998 Aug 2 2:00
-6:00 Mexico C%sT
! # Campeche, Yucatan
Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32
-6:00 - CST 1981 Dec 23
-5:00 - EST 1982 Dec 2
-6:00 Mexico C%sT
! # Coahuila, Durango, Nuevo Leon, Tamaulipas (near US border)
Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00
-6:00 - CST 1988
-6:00 US C%sT 1989
-6:00 Mexico C%sT 2010
-6:00 US C%sT
! # Coahuila, Durango, Nuevo Leon, Tamaulipas (away from US border)
Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44
-6:00 - CST 1988
-6:00 US C%sT 1989
-6:00 Mexico C%sT
# Central Mexico
--- 2307,2333 ----
Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D
Rule Mexico 2001 only - Sep lastSun 2:00 0 S
Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D
Rule Mexico 2002 max - Oct lastSun 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! # Quintana Roo; represented by Cancún
Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56
-6:00 - CST 1981 Dec 23
-5:00 Mexico E%sT 1998 Aug 2 2:00
-6:00 Mexico C%sT
! # Campeche, Yucatán; represented by Mérida
Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32
-6:00 - CST 1981 Dec 23
-5:00 - EST 1982 Dec 2
-6:00 Mexico C%sT
! # Coahuila, Durango, Nuevo León, Tamaulipas (near US border)
Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00
-6:00 - CST 1988
-6:00 US C%sT 1989
-6:00 Mexico C%sT 2010
-6:00 US C%sT
! # Coahuila, Durango, Nuevo León, Tamaulipas (away from US border)
Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44
-6:00 - CST 1988
-6:00 US C%sT 1989
-6:00 Mexico C%sT
# Central Mexico
*** 2391,2401 ****
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
-7:00 - MST 1932 Apr 1
! -6:00 Mexico C%sT 2001 Sep 30 02:00
-6:00 - CST 2002 Feb 20
-6:00 Mexico C%sT
# Chihuahua (near US border)
Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20
-7:00 - MST 1927 Jun 10 23:00
--- 2335,2345 ----
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
-7:00 - MST 1932 Apr 1
! -6:00 Mexico C%sT 2001 Sep 30 2:00
-6:00 - CST 2002 Feb 20
-6:00 Mexico C%sT
# Chihuahua (near US border)
Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20
-7:00 - MST 1927 Jun 10 23:00
*** 2431,2476 ****
-8:00 - PST 1970
-7:00 Mexico M%sT 1999
-7:00 - MST
# From Alexander Krivenyshev (2010-04-21):
! # According to news, Bahía de Banderas (Mexican state of Nayarit)
# changed time zone UTC-7 to new time zone UTC-6 on April 4, 2010 (to
# share the same time zone as nearby city Puerto Vallarta, Jalisco).
#
# (Spanish)
! # Bahía de Banderas homologa su horario al del centro del
! # país, a partir de este domingo
! # <a href="http://www.nayarit.gob.mx/notes.asp?id=20748">
# http://www.nayarit.gob.mx/notes.asp?id=20748
- # </a>
#
! # Bahía de Banderas homologa su horario con el del Centro del
! # País
! # <a href="http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&view=article&id=261:bahia-de-banderas-homologa-su-horario-con-el-del-centro-del-pais&catid=42:comunicacion-social&Itemid=50">
! # http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&view=article&id=261:bahia-de-banderas-homologa-su-horario-con-el-del-centro-del-pais&catid=42:comunicacion-social&Itemid=50"
! # </a>
#
# (English)
! # Puerto Vallarta and Bahía de Banderas: One Time Zone
! # <a href="http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-03-Puerto-Vallarta-and-Bahia-de-Banderas-One-Time-Zone.shtml">
# http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-03-Puerto-Vallarta-and-Bahia-de-Banderas-One-Time-Zone.shtml
- # </a>
- #
- # or
- # <a href="http://www.worldtimezone.com/dst_news/dst_news_mexico08.html">
# http://www.worldtimezone.com/dst_news/dst_news_mexico08.html
- # </a>
#
# "Mexico's Senate approved the amendments to the Mexican Schedule System that
! # will allow Bahía de Banderas and Puerto Vallarta to share the same time
# zone ..."
# Baja California Sur, Nayarit, Sinaloa
# From Arthur David Olson (2010-05-01):
# Use "Bahia_Banderas" to keep the name to fourteen characters.
Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
--- 2375,2411 ----
-8:00 - PST 1970
-7:00 Mexico M%sT 1999
-7:00 - MST
# From Alexander Krivenyshev (2010-04-21):
! # According to news, Bahía de Banderas (Mexican state of Nayarit)
# changed time zone UTC-7 to new time zone UTC-6 on April 4, 2010 (to
# share the same time zone as nearby city Puerto Vallarta, Jalisco).
#
# (Spanish)
! # Bahía de Banderas homologa su horario al del centro del
! # país, a partir de este domingo
# http://www.nayarit.gob.mx/notes.asp?id=20748
#
! # Bahía de Banderas homologa su horario con el del Centro del
! # País
! # http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&view=article&id=261:bahia-de-banderas-homologa-su-horario-con-el-del-centro-del-pais&catid=42:comunicacion-social&Itemid=50
#
# (English)
! # Puerto Vallarta and Bahía de Banderas: One Time Zone
# http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-03-Puerto-Vallarta-and-Bahia-de-Banderas-One-Time-Zone.shtml
# http://www.worldtimezone.com/dst_news/dst_news_mexico08.html
#
# "Mexico's Senate approved the amendments to the Mexican Schedule System that
! # will allow Bahía de Banderas and Puerto Vallarta to share the same time
# zone ..."
# Baja California Sur, Nayarit, Sinaloa
# From Arthur David Olson (2010-05-01):
# Use "Bahia_Banderas" to keep the name to fourteen characters.
+ # Mazatlán
Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
*** 2478,2487 ****
--- 2413,2423 ----
-6:00 - CST 1942 Apr 24
-7:00 - MST 1949 Jan 14
-8:00 - PST 1970
-7:00 Mexico M%sT
+ # Bahía de Banderas
Zone America/Bahia_Banderas -7:01:00 - LMT 1921 Dec 31 23:59:00
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
*** 2534,2544 ****
# From Paul Eggert (2006-03-22):
# Formerly there was an America/Ensenada zone, which differed from
# America/Tijuana only in that it did not observe DST from 1976
# through 1995. This was as per Shanks (1999). But Shanks & Pottenger say
# Ensenada did not observe DST from 1948 through 1975. Guy Harris reports
! # that the 1987 OAG says "Only Ensenada, Mexicale, San Felipe and
# Tijuana observe DST," which agrees with Shanks & Pottenger but implies that
# DST-observance was a town-by-town matter back then. This concerns
# data after 1970 so most likely there should be at least one Zone
# other than America/Tijuana for Baja, but it's not clear yet what its
# name or contents should be.
--- 2470,2480 ----
# From Paul Eggert (2006-03-22):
# Formerly there was an America/Ensenada zone, which differed from
# America/Tijuana only in that it did not observe DST from 1976
# through 1995. This was as per Shanks (1999). But Shanks & Pottenger say
# Ensenada did not observe DST from 1948 through 1975. Guy Harris reports
! # that the 1987 OAG says "Only Ensenada, Mexicali, San Felipe and
# Tijuana observe DST," which agrees with Shanks & Pottenger but implies that
# DST-observance was a town-by-town matter back then. This concerns
# data after 1970 so most likely there should be at least one Zone
# other than America/Tijuana for Baja, but it's not clear yet what its
# name or contents should be.
*** 2547,2557 ****
# no information
###############################################################################
# Anguilla
! # See 'southamerica'.
# Antigua and Barbuda
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
-5:00 - EST 1951
--- 2483,2493 ----
# no information
###############################################################################
# Anguilla
! # See America/Port_of_Spain.
# Antigua and Barbuda
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
-5:00 - EST 1951
*** 2627,2650 ****
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
-5:00 - EST
# Costa Rica
! # Milne gives -5:36:13.3 as San Jose mean time; round to nearest.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D
# IATA SSIM (1991-09) says the following was at 1:00;
# go with Shanks & Pottenger.
Rule CR 1991 only - Jul 1 0:00 0 S
Rule CR 1992 only - Mar 15 0:00 0 S
! # There are too many San Joses elsewhere, so we'll use 'Costa Rica'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone America/Costa_Rica -5:36:13 - LMT 1890 # San Jose
! -5:36:13 - SJMT 1921 Jan 15 # San Jose Mean Time
-6:00 CR C%sT
# Coco
# no information; probably like America/Costa_Rica
# Cuba
--- 2563,2586 ----
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
-5:00 - EST
# Costa Rica
! # Milne gives -5:36:13.3 as San José mean time; round to nearest.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D
# IATA SSIM (1991-09) says the following was at 1:00;
# go with Shanks & Pottenger.
Rule CR 1991 only - Jul 1 0:00 0 S
Rule CR 1992 only - Mar 15 0:00 0 S
! # There are too many San Josés elsewhere, so we'll use 'Costa Rica'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
! -5:36:13 - SJMT 1921 Jan 15 # San José Mean Time
-6:00 CR C%sT
# Coco
# no information; probably like America/Costa_Rica
# Cuba
*** 2659,2670 ****
# the Cuban National Team and the Baltimore Orioles was carried live on
# the Orioles Radio Network, including affiliate WTOP in Washington, DC.
# During the game, play-by-play announcer Jim Hunter noted that
# "We'll be losing two hours of sleep...Cuba switched to Daylight Saving
# Time today." (The "two hour" remark referred to losing one hour of
! # sleep on 1999-03-28--when the announcers were in Cuba as it switched
! # to DST--and one more hour on 1999-04-04--when the announcers will have
# returned to Baltimore, which switches on that date.)
# From Steffen Thorsen (2013-11-11):
# DST start in Cuba in 2004 ... does not follow the same rules as the
# years before. The correct date should be Sunday 2004-03-28 00:00 ...
--- 2595,2606 ----
# the Cuban National Team and the Baltimore Orioles was carried live on
# the Orioles Radio Network, including affiliate WTOP in Washington, DC.
# During the game, play-by-play announcer Jim Hunter noted that
# "We'll be losing two hours of sleep...Cuba switched to Daylight Saving
# Time today." (The "two hour" remark referred to losing one hour of
! # sleep on 1999-03-28 - when the announcers were in Cuba as it switched
! # to DST - and one more hour on 1999-04-04 - when the announcers will have
# returned to Baltimore, which switches on that date.)
# From Steffen Thorsen (2013-11-11):
# DST start in Cuba in 2004 ... does not follow the same rules as the
# years before. The correct date should be Sunday 2004-03-28 00:00 ...
*** 2682,2701 ****
# From Carlos A. Carnero Delgado (2005-11-12):
# This year (just like in 2004-2005) there's no change in time zone
# adjustment in Cuba. We will stay in daylight saving time:
# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
! # From Jesper Norgaard Welen (2006-10-21):
# An article in GRANMA INTERNACIONAL claims that Cuba will end
# the 3 years of permanent DST next weekend, see
# http://www.granma.cu/ingles/2006/octubre/lun16/43horario.html
# "On Saturday night, October 28 going into Sunday, October 29, at 01:00,
! # watches should be set back one hour -- going back to 00:00 hours -- returning
# to the normal schedule....
# From Paul Eggert (2007-03-02):
! # http://www.granma.cubaweb.cu/english/news/art89.html, dated yesterday,
# says Cuban clocks will advance at midnight on March 10.
# For lack of better information, assume Cuba will use US rules,
# except that it switches at midnight standard time as usual.
#
# From Steffen Thorsen (2007-10-25):
--- 2618,2637 ----
# From Carlos A. Carnero Delgado (2005-11-12):
# This year (just like in 2004-2005) there's no change in time zone
# adjustment in Cuba. We will stay in daylight saving time:
# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
! # From Jesper Nørgaard Welen (2006-10-21):
# An article in GRANMA INTERNACIONAL claims that Cuba will end
# the 3 years of permanent DST next weekend, see
# http://www.granma.cu/ingles/2006/octubre/lun16/43horario.html
# "On Saturday night, October 28 going into Sunday, October 29, at 01:00,
! # watches should be set back one hour - going back to 00:00 hours - returning
# to the normal schedule....
# From Paul Eggert (2007-03-02):
! # <http://www.granma.cubaweb.cu/english/news/art89.html>, dated yesterday,
# says Cuban clocks will advance at midnight on March 10.
# For lack of better information, assume Cuba will use US rules,
# except that it switches at midnight standard time as usual.
#
# From Steffen Thorsen (2007-10-25):
*** 2705,2763 ****
# He supplied these references:
#
# http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-8631AFC923AF%7D&language=ES
# http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cambio_1957044.htm
#
! # From Alex Kryvenishev (2007-10-25):
# Here is also article from Granma (Cuba):
#
! # [Regira] el Horario Normal desde el [proximo] domingo 28 de octubre
# http://www.granma.cubaweb.cu/2007/10/24/nacional/artic07.html
#
# http://www.worldtimezone.com/dst_news/dst_news_cuba03.html
# From Arthur David Olson (2008-03-09):
# I'm in Maryland which is now observing United States Eastern Daylight
# Time. At 9:44 local time I used RealPlayer to listen to
- # <a href="http://media.enet.cu/radioreloj">
# http://media.enet.cu/radioreloj
! # </a>, a Cuban information station, and heard
# the time announced as "ocho cuarenta y cuatro" ("eight forty-four"),
# indicating that Cuba is still on standard time.
# From Steffen Thorsen (2008-03-12):
# It seems that Cuba will start DST on Sunday, 2007-03-16...
# It was announced yesterday, according to this source (in Spanish):
- # <a href="http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm">
# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
- # </a>
#
# Some more background information is posted here:
- # <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html">
# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
- # </a>
#
# The article also says that Cuba has been observing DST since 1963,
# while Shanks (and tzdata) has 1965 as the first date (except in the
# 1940's). Many other web pages in Cuba also claim that it has been
# observed since 1963, but with the exception of 1970 - an exception
# which is not present in tzdata/Shanks. So there is a chance we need to
# change some historic records as well.
#
# One example:
- # <a href="http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm">
# http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm
- # </a>
! # From Jesper Norgaard Welen (2008-03-13):
# The Cuban time change has just been confirmed on the most authoritative
# web site, the Granma. Please check out
- # <a href="http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html">
# http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html
- # </a>
#
! # Basically as expected after Steffen Thorsens information, the change
# will take place midnight between Saturday and Sunday.
# From Arthur David Olson (2008-03-12):
# Assume Sun>=15 (third Sunday) going forward.
--- 2641,2690 ----
# He supplied these references:
#
# http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-8631AFC923AF%7D&language=ES
# http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cambio_1957044.htm
#
! # From Alex Krivenyshev (2007-10-25):
# Here is also article from Granma (Cuba):
#
! # Regirá el Horario Normal desde el próximo domingo 28 de octubre
# http://www.granma.cubaweb.cu/2007/10/24/nacional/artic07.html
#
# http://www.worldtimezone.com/dst_news/dst_news_cuba03.html
# From Arthur David Olson (2008-03-09):
# I'm in Maryland which is now observing United States Eastern Daylight
# Time. At 9:44 local time I used RealPlayer to listen to
# http://media.enet.cu/radioreloj
! # a Cuban information station, and heard
# the time announced as "ocho cuarenta y cuatro" ("eight forty-four"),
# indicating that Cuba is still on standard time.
# From Steffen Thorsen (2008-03-12):
# It seems that Cuba will start DST on Sunday, 2007-03-16...
# It was announced yesterday, according to this source (in Spanish):
# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
#
# Some more background information is posted here:
# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
#
# The article also says that Cuba has been observing DST since 1963,
# while Shanks (and tzdata) has 1965 as the first date (except in the
# 1940's). Many other web pages in Cuba also claim that it has been
# observed since 1963, but with the exception of 1970 - an exception
# which is not present in tzdata/Shanks. So there is a chance we need to
# change some historic records as well.
#
# One example:
# http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm
! # From Jesper Nørgaard Welen (2008-03-13):
# The Cuban time change has just been confirmed on the most authoritative
# web site, the Granma. Please check out
# http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html
#
! # Basically as expected after Steffen Thorsen's information, the change
# will take place midnight between Saturday and Sunday.
# From Arthur David Olson (2008-03-12):
# Assume Sun>=15 (third Sunday) going forward.
*** 2764,2829 ****
# From Alexander Krivenyshev (2009-03-04)
# According to the Radio Reloj - Cuba will start Daylight Saving Time on
# midnight between Saturday, March 07, 2009 and Sunday, March 08, 2009-
# not on midnight March 14 / March 15 as previously thought.
#
- # <a href="http://www.worldtimezone.com/dst_news/dst_news_cuba05.html">
# http://www.worldtimezone.com/dst_news/dst_news_cuba05.html
# (in Spanish)
- # </a>
# From Arthur David Olson (2009-03-09)
# I listened over the Internet to
- # <a href="http://media.enet.cu/readioreloj">
# http://media.enet.cu/readioreloj
- # </a>
# this morning; when it was 10:05 a. m. here in Bethesda, Maryland the
! # the time was announced as "diez cinco"--the same time as here, indicating
# that has indeed switched to DST. Assume second Sunday from 2009 forward.
# From Steffen Thorsen (2011-03-08):
# Granma announced that Cuba is going to start DST on 2011-03-20 00:00:00
# this year. Nothing about the end date known so far (if that has
# changed at all).
#
# Source:
- # <a href="http://granma.co.cu/2011/03/08/nacional/artic01.html">
# http://granma.co.cu/2011/03/08/nacional/artic01.html
- # </a>
#
# Our info:
- # <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html">
# http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html
- # </a>
#
# From Steffen Thorsen (2011-10-30)
# Cuba will end DST two weeks later this year. Instead of going back
# tonight, it has been delayed to 2011-11-13 at 01:00.
#
# One source (Spanish)
- # <a href="http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html">
# http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html
- # </a>
#
# Our page:
- # <a href="http://www.timeanddate.com/news/time/cuba-time-changes-2011.html">
# http://www.timeanddate.com/news/time/cuba-time-changes-2011.html
- # </a>
#
# From Steffen Thorsen (2012-03-01)
# According to Radio Reloj, Cuba will start DST on Midnight between March
# 31 and April 1.
#
# Radio Reloj has the following info (Spanish):
- # <a href="http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril">
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril
- # </a>
#
# Our info on it:
- # <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html">
# http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html
- # </a>
# From Steffen Thorsen (2012-11-03):
# Radio Reloj and many other sources report that Cuba is changing back
# to standard time on 2012-11-04:
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/36-nacionales/9961-regira-horario-normal-en-cuba-desde-el-domingo-cuatro-de-noviembre
--- 2691,2740 ----
# From Alexander Krivenyshev (2009-03-04)
# According to the Radio Reloj - Cuba will start Daylight Saving Time on
# midnight between Saturday, March 07, 2009 and Sunday, March 08, 2009-
# not on midnight March 14 / March 15 as previously thought.
#
# http://www.worldtimezone.com/dst_news/dst_news_cuba05.html
# (in Spanish)
# From Arthur David Olson (2009-03-09)
# I listened over the Internet to
# http://media.enet.cu/readioreloj
# this morning; when it was 10:05 a. m. here in Bethesda, Maryland the
! # the time was announced as "diez cinco" - the same time as here, indicating
# that has indeed switched to DST. Assume second Sunday from 2009 forward.
# From Steffen Thorsen (2011-03-08):
# Granma announced that Cuba is going to start DST on 2011-03-20 00:00:00
# this year. Nothing about the end date known so far (if that has
# changed at all).
#
# Source:
# http://granma.co.cu/2011/03/08/nacional/artic01.html
#
# Our info:
# http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html
#
# From Steffen Thorsen (2011-10-30)
# Cuba will end DST two weeks later this year. Instead of going back
# tonight, it has been delayed to 2011-11-13 at 01:00.
#
# One source (Spanish)
# http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html
#
# Our page:
# http://www.timeanddate.com/news/time/cuba-time-changes-2011.html
#
# From Steffen Thorsen (2012-03-01)
# According to Radio Reloj, Cuba will start DST on Midnight between March
# 31 and April 1.
#
# Radio Reloj has the following info (Spanish):
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril
#
# Our info on it:
# http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html
# From Steffen Thorsen (2012-11-03):
# Radio Reloj and many other sources report that Cuba is changing back
# to standard time on 2012-11-04:
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/36-nacionales/9961-regira-horario-normal-en-cuba-desde-el-domingo-cuatro-de-noviembre
*** 2875,2885 ****
Zone America/Havana -5:29:28 - LMT 1890
-5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
-5:00 Cuba C%sT
# Dominica
! # See 'southamerica'.
# Dominican Republic
# From Steffen Thorsen (2000-10-30):
# Enrique Morales reported to me that the Dominican Republic has changed the
--- 2786,2796 ----
Zone America/Havana -5:29:28 - LMT 1890
-5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
-5:00 Cuba C%sT
# Dominica
! # See America/Port_of_Spain.
# Dominican Republic
# From Steffen Thorsen (2000-10-30):
# Enrique Morales reported to me that the Dominican Republic has changed the
*** 2908,2919 ****
Rule DR 1972 1974 - Jan 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Santo_Domingo -4:39:36 - LMT 1890
-4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
-5:00 DR E%sT 1974 Oct 27
! -4:00 - AST 2000 Oct 29 02:00
! -5:00 US E%sT 2000 Dec 3 01:00
-4:00 - AST
# El Salvador
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
--- 2819,2830 ----
Rule DR 1972 1974 - Jan 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Santo_Domingo -4:39:36 - LMT 1890
-4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
-5:00 DR E%sT 1974 Oct 27
! -4:00 - AST 2000 Oct 29 2:00
! -5:00 US E%sT 2000 Dec 3 1:00
-4:00 - AST
# El Salvador
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
*** 2925,2951 ****
Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
-6:00 Salv C%sT
# Grenada
# Guadeloupe
! # St Barthelemy
# St Martin (French part)
! # See 'southamerica'.
# Guatemala
#
# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
# Diario Co Latino, at
! # http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079,
# says in an article dated 2006-04-19 that the Guatemalan government had
# decided on that date to advance official time by 60 minutes, to lessen the
# impact of the elevated cost of oil.... Daylight saving time will last from
# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
# From Paul Eggert (2006-06-22):
# The Ministry of Energy and Mines, press release CP-15/2006
# (2006-04-19), says DST ends at 24:00. See
! # <http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf>.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Guat 1973 only - Nov 25 0:00 1:00 D
Rule Guat 1974 only - Feb 24 0:00 0 S
Rule Guat 1983 only - May 21 0:00 1:00 D
--- 2836,2862 ----
Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
-6:00 Salv C%sT
# Grenada
# Guadeloupe
! # St Barthélemy
# St Martin (French part)
! # See America/Port_of_Spain.
# Guatemala
#
# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
# Diario Co Latino, at
! # <http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079>,
# says in an article dated 2006-04-19 that the Guatemalan government had
# decided on that date to advance official time by 60 minutes, to lessen the
# impact of the elevated cost of oil.... Daylight saving time will last from
# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
# From Paul Eggert (2006-06-22):
# The Ministry of Energy and Mines, press release CP-15/2006
# (2006-04-19), says DST ends at 24:00. See
! # http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Guat 1973 only - Nov 25 0:00 1:00 D
Rule Guat 1974 only - Feb 24 0:00 0 S
Rule Guat 1983 only - May 21 0:00 1:00 D
*** 2958,2972 ****
Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
-6:00 Guat C%sT
# Haiti
# From Gwillim Law (2005-04-15):
! # Risto O. Nykanen wrote me that Haiti is now on DST.
! # I searched for confirmation, and I found a
! # <a href="http://www.haitianconsulate.org/time.doc"> press release
# on the Web page of the Haitian Consulate in Chicago (2005-03-31),
! # </a>. Translated from French, it says:
#
# "The Prime Minister's Communication Office notifies the public in general
# and the press in particular that, following a decision of the Interior
# Ministry and the Territorial Collectivities [I suppose that means the
# provinces], Haiti will move to Eastern Daylight Time in the night from next
--- 2869,2882 ----
Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
-6:00 Guat C%sT
# Haiti
# From Gwillim Law (2005-04-15):
! # Risto O. Nykänen wrote me that Haiti is now on DST.
! # I searched for confirmation, and I found a press release
# on the Web page of the Haitian Consulate in Chicago (2005-03-31),
! # <http://www.haitianconsulate.org/time.doc>. Translated from French, it says:
#
# "The Prime Minister's Communication Office notifies the public in general
# and the press in particular that, following a decision of the Interior
# Ministry and the Territorial Collectivities [I suppose that means the
# provinces], Haiti will move to Eastern Daylight Time in the night from next
*** 3039,3056 ****
# saying Honduras will start using DST midnight Saturday, effective 4
# months until September. La Tribuna reported today
# <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
# of Honduras, refused to back down on this.
! # From Jesper Norgaard Welen (2006-08-08):
# It seems that Honduras has returned from DST to standard time this Monday at
# 00:00 hours (prolonging Sunday to 25 hours duration).
# http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
# From Paul Eggert (2006-08-08):
! # Also see Diario El Heraldo, The country returns to standard time (2006-08-08)
! # <http://www.elheraldo.hn/nota.php?nid=54941&sec=12>.
# It mentions executive decree 18-2006.
# From Steffen Thorsen (2006-08-17):
# Honduras will observe DST from 2007 to 2009, exact dates are not
# published, I have located this authoritative source:
--- 2949,2966 ----
# saying Honduras will start using DST midnight Saturday, effective 4
# months until September. La Tribuna reported today
# <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
# of Honduras, refused to back down on this.
! # From Jesper Nørgaard Welen (2006-08-08):
# It seems that Honduras has returned from DST to standard time this Monday at
# 00:00 hours (prolonging Sunday to 25 hours duration).
# http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
# From Paul Eggert (2006-08-08):
! # Also see Diario El Heraldo, The country returns to standard time (2006-08-08).
! # http://www.elheraldo.hn/nota.php?nid=54941&sec=12
# It mentions executive decree 18-2006.
# From Steffen Thorsen (2006-08-17):
# Honduras will observe DST from 2007 to 2009, exact dates are not
# published, I have located this authoritative source:
*** 3089,3099 ****
-4:00 - AST 1980 Apr 6
-4:00 1:00 ADT 1980 Sep 28
-4:00 - AST
# Montserrat
! # See 'southamerica'.
# Nicaragua
#
# This uses Shanks & Pottenger for times before 2005.
#
--- 2999,3009 ----
-4:00 - AST 1980 Apr 6
-4:00 1:00 ADT 1980 Sep 28
-4:00 - AST
# Montserrat
! # See America/Port_of_Spain.
# Nicaragua
#
# This uses Shanks & Pottenger for times before 2005.
#
*** 3114,3142 ****
# From Gwillim Law (2005-04-21):
# The Associated Press story on the time change, which can be found at
# http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_GEN_NICARAGUA_HORA.html
# and elsewhere, says (fifth paragraph, translated from Spanish): "The last
# time that a change of clocks was applied to save energy was in the year 2000
! # during the Arnoldo Aleman administration."...
# The northamerica file says that Nicaragua has been on UTC-6 continuously
# since December 1998. I wasn't able to find any details of Nicaraguan time
# changes in 2000. Perhaps a note could be added to the northamerica file, to
# the effect that we have indirect evidence that DST was observed in 2000.
#
! # From Jesper Norgaard Welen (2005-11-02):
# Nicaragua left DST the 2005-10-02 at 00:00 (local time).
# http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
# (2005-09-26)
#
! # From Jesper Norgaard Welen (2006-05-05):
# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
# (my informal translation)
! # By order of the president of the republic, Enrique Bolanos, Nicaragua
# advanced by sixty minutes their official time, yesterday at 2 in the
! # morning, and will stay that way until 30.th. of september.
#
! # From Jesper Norgaard Welen (2006-09-30):
# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2006/D-063-2006P-PRN-Cambio-Hora.pdf
# My informal translation runs:
# The natural sun time is restored in all the national territory, in that the
# time is returned one hour at 01:00 am of October 1 of 2006.
#
--- 3024,3052 ----
# From Gwillim Law (2005-04-21):
# The Associated Press story on the time change, which can be found at
# http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_GEN_NICARAGUA_HORA.html
# and elsewhere, says (fifth paragraph, translated from Spanish): "The last
# time that a change of clocks was applied to save energy was in the year 2000
! # during the Arnoldo Alemán administration."...
# The northamerica file says that Nicaragua has been on UTC-6 continuously
# since December 1998. I wasn't able to find any details of Nicaraguan time
# changes in 2000. Perhaps a note could be added to the northamerica file, to
# the effect that we have indirect evidence that DST was observed in 2000.
#
! # From Jesper Nørgaard Welen (2005-11-02):
# Nicaragua left DST the 2005-10-02 at 00:00 (local time).
# http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
# (2005-09-26)
#
! # From Jesper Nørgaard Welen (2006-05-05):
# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
# (my informal translation)
! # By order of the president of the republic, Enrique Bolaños, Nicaragua
# advanced by sixty minutes their official time, yesterday at 2 in the
! # morning, and will stay that way until 30th of September.
#
! # From Jesper Nørgaard Welen (2006-09-30):
# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2006/D-063-2006P-PRN-Cambio-Hora.pdf
# My informal translation runs:
# The natural sun time is restored in all the national territory, in that the
# time is returned one hour at 01:00 am of October 1 of 2006.
#
*** 3159,3169 ****
-6:00 Nic C%sT
# Panama
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Panama -5:18:08 - LMT 1890
! -5:19:36 - CMT 1908 Apr 22 # Colon Mean Time
-5:00 - EST
# Puerto Rico
# There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
--- 3069,3079 ----
-6:00 Nic C%sT
# Panama
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Panama -5:18:08 - LMT 1890
! -5:19:36 - CMT 1908 Apr 22 # Colón Mean Time
-5:00 - EST
# Puerto Rico
# There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
*** 3172,3182 ****
-4:00 US A%sT 1946
-4:00 - AST
# St Kitts-Nevis
# St Lucia
! # See 'southamerica'.
# St Pierre and Miquelon
# There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
--- 3082,3092 ----
-4:00 US A%sT 1946
-4:00 - AST
# St Kitts-Nevis
# St Lucia
! # See America/Port_of_Spain.
# St Pierre and Miquelon
# There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
*** 3183,3198 ****
-4:00 - AST 1980 May
-3:00 - PMST 1987 # Pierre & Miquelon Time
-3:00 Canada PM%sT
# St Vincent and the Grenadines
! # See 'southamerica'.
# Turks and Caicos
#
# From Chris Dunn in
! # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007>
# (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
# daylight saving dates for time changes have been adjusted to match
# the recent U.S. change of dates.
#
# From Brian Inglis (2007-04-28):
--- 3093,3108 ----
-4:00 - AST 1980 May
-3:00 - PMST 1987 # Pierre & Miquelon Time
-3:00 Canada PM%sT
# St Vincent and the Grenadines
! # See America/Port_of_Spain.
# Turks and Caicos
#
# From Chris Dunn in
! # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
# (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
# daylight saving dates for time changes have been adjusted to match
# the recent U.S. change of dates.
#
# From Brian Inglis (2007-04-28):
*** 3201,3223 ****
# rows before that there is an out of date entry for Oct:
# "Eastern Standard Times Begins 2007
# Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
# indicating that the normal ET rules are followed.
#
! # From Paul Eggert (2006-05-01):
! # Shanks & Pottenger say they use US DST rules, but IATA SSIM (1991/1998)
! # says they switch at midnight. Go with Shanks & Pottenger.
#
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule TC 1979 1986 - Apr lastSun 2:00 1:00 D
- Rule TC 1979 2006 - Oct lastSun 2:00 0 S
- Rule TC 1987 2006 - Apr Sun>=1 2:00 1:00 D
- Rule TC 2007 max - Mar Sun>=8 2:00 1:00 D
- Rule TC 2007 max - Nov Sun>=1 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Grand_Turk -4:44:32 - LMT 1890
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
! -5:00 TC E%sT
# British Virgin Is
# Virgin Is
! # See 'southamerica'.
--- 3111,3135 ----
# rows before that there is an out of date entry for Oct:
# "Eastern Standard Times Begins 2007
# Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
# indicating that the normal ET rules are followed.
#
! # From Paul Eggert (2014-08-19):
! # The 2014-08-13 Cabinet meeting decided to stay on UTC-4 year-round. See:
! # http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm
! # Model this as a switch from EST/EDT to AST on 2014-11-02 at 02:00.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Grand_Turk -4:44:32 - LMT 1890
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
! -5:00 - EST 1979
! -5:00 US E%sT 2014 Nov 2 2:00
! -4:00 - AST
# British Virgin Is
# Virgin Is
! # See America/Port_of_Spain.
!
!
! # Local Variables:
! # coding: utf-8
! # End: