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6402 Update zoneinfo to 2015g
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Marcel Telka <marcel@telka.sk>
Approved by:
        
*** 225,237 ****
  #       Hawaii-Aleutian standard time
  #       Samoa standard time
  # The law doesn't give abbreviations.
  #
  # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
! # Public law 106-564 (2000-12-23) introduced the abbreviation
! # "Chamorro Standard Time" for time in Guam and the Northern Marianas.
! # See the file "australasia".
  
  # 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.
--- 225,242 ----
  #       Hawaii-Aleutian standard time
  #       Samoa standard time
  # The law doesn't give abbreviations.
  #
  # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
! # Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
! # for time in Guam and the Northern Marianas.  See the file "australasia".
! #
! # From Paul Eggert (2015-04-17):
! # HST and HDT are standardized abbreviations for Hawaii-Aleutian
! # standard and daylight times.  See section 9.47 (p 234) of the
! # U.S. Government Printing Office Style Manual (2008)
! # http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
  
  # 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.
*** 534,544 ****
                          -11:00  US      N%sT    1946
                          -11:00  -       NST     1967 Apr
                          -11:00  -       BST     1969
                          -11:00  US      B%sT    1983 Oct 30  2:00
                          -10:00  US      AH%sT   1983 Nov 30
!                         -10:00  US      HA%sT
  # The following switches don't quite make our 1970 cutoff.
  #
  # Shanks writes that part of southwest Alaska (e.g. Aniak)
  # switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
  # and another part (e.g. Akiak) made the same switch five weeks later.
--- 539,549 ----
                          -11:00  US      N%sT    1946
                          -11:00  -       NST     1967 Apr
                          -11:00  -       BST     1969
                          -11:00  US      B%sT    1983 Oct 30  2:00
                          -10:00  US      AH%sT   1983 Nov 30
!                         -10:00  US      H%sT
  # The following switches don't quite make our 1970 cutoff.
  #
  # Shanks writes that part of southwest Alaska (e.g. Aniak)
  # switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
  # and another part (e.g. Akiak) made the same switch five weeks later.
*** 1228,1241 ****
                          -4:00   Canada  A%sT
  
  
  # west Labrador, Nova Scotia, Prince Edward I
  
! # From Paul Eggert (2006-03-22):
  # Shanks & Pottenger write that since 1970 most of this region has been like
  # Halifax.  Many locales did not observe peacetime DST until 1972;
! # Glace Bay, NS is the largest that we know of.
  # Shanks & Pottenger also write that Liverpool, NS was the only town
  # in Canada to observe DST in 1971 but not 1970; for now we'll assume
  # this is a typo.
  
  # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
--- 1233,1255 ----
                          -4:00   Canada  A%sT
  
  
  # west Labrador, Nova Scotia, Prince Edward I
  
! # From Brian Inglis (2015-07-20):
! # From the historical weather station records available at:
! # https://weatherspark.com/history/28351/1971/Sydney-Nova-Scotia-Canada
! # Sydney shares the same time history as Glace Bay, so was
! # likely to be the same across the island....
! # Sydney, as the capital and most populous location, or Cape Breton, would
! # have been better names for the zone had we known this in 1996.
! 
! # From Paul Eggert (2015-07-20):
  # Shanks & Pottenger write that since 1970 most of this region has been like
  # Halifax.  Many locales did not observe peacetime DST until 1972;
! # the Cape Breton area, represented by Glace Bay, is the largest we know of
! # (Glace Bay was perhaps not the best name choice but no point changing now).
  # Shanks & Pottenger also write that Liverpool, NS was the only town
  # in Canada to observe DST in 1971 but not 1970; for now we'll assume
  # this is a typo.
  
  # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
*** 1329,1346 ****
                          -4:00   Moncton A%sT    2007
                          -4:00   Canada  A%sT
  
  # Quebec
  
! # From Paul Eggert (2013-08-30):
! # Since 1970 most of Quebec has been like Toronto.
! # However, because earlier versions of the tz database mistakenly relied on data
! # from Shanks & Pottenger saying that Quebec differed from Ontario after 1970,
! # a separate entry was created for most of Quebec.  We're loath to lose
! # its pre-1970 info, even though the tz database is normally limited to
! # zones that differ after 1970, so keep this otherwise out-of-scope entry.
! 
  # 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"
--- 1343,1355 ----
                          -4:00   Moncton A%sT    2007
                          -4:00   Canada  A%sT
  
  # Quebec
  
! # From Paul Eggert (2015-03-24):
! # See America/Toronto for most of Quebec, including Montreal.
! #
  # 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"
*** 1350,1392 ****
  # 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
- Rule    Mont    1919    only    -       Oct     25      2:30    0       S
- Rule    Mont    1920    only    -       May      2      2:30    1:00    D
- Rule    Mont    1920    1922    -       Oct     Sun>=1  2:30    0       S
- 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
- 
  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
  Zone America/Blanc-Sablon -3:48:28 -    LMT     1884
                          -4:00   Canada  A%sT    1970
                          -4:00   -       AST
- Zone America/Montreal   -4:54:16 -      LMT     1884
-                         -5:00   Mont    E%sT    1918
-                         -5:00   Canada  E%sT    1919
-                         -5:00   Mont    E%sT    1942 Feb  9  2:00s
-                         -5:00   Canada  E%sT    1946
-                         -5:00   Mont    E%sT    1974
-                         -5:00   Canada  E%sT
  
  # Ontario
  
  # From Paul Eggert (2006-07-09):
  # Shanks & Pottenger write that since 1970 most of Ontario has been like
--- 1359,1372 ----
*** 1823,1839 ****
  # Exact date unknown
  # 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
  # Exact date in October unknown; Sunday October 1 is a reasonable guess.
  # 3. June 1918: switch to Pacific Daylight Time (GMT-7)
  # Exact date in June unknown; Sunday June 2 is a reasonable guess.
! # note#1:
  # On Oct 27/1918 when daylight saving ended in the rest of Canada,
  # Creston did not change its clocks.
! # note#2:
  # During WWII when the Federal Government legislated a mandatory clock change,
  # 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.
  # http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
  
--- 1803,1819 ----
  # Exact date unknown
  # 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
  # Exact date in October unknown; Sunday October 1 is a reasonable guess.
  # 3. June 1918: switch to Pacific Daylight Time (GMT-7)
  # Exact date in June unknown; Sunday June 2 is a reasonable guess.
! # note 1:
  # On Oct 27/1918 when daylight saving ended in the rest of Canada,
  # Creston did not change its clocks.
! # note 2:
  # During WWII when the Federal Government legislated a mandatory clock change,
  # 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.
  # http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
  
*** 1844,1853 ****
--- 1824,1849 ----
  # period should be PDT rather than MST, but that doesn't seem important enough
  # (to anyone) to further complicate the rules.
  
  # The transition dates (and times) are guesses.
  
+ # From Matt Johnson (2015-09-21):
+ # Fort Nelson, BC, Canada will cancel DST this year.  So while previously they
+ # were aligned with America/Vancouver, they're now aligned with
+ # America/Dawson_Creek.
+ # http://www.northernrockies.ca/EN/meta/news/archives/2015/northern-rockies-time-change.html
+ #
+ # From Tim Parenti (2015-09-23):
+ # This requires a new zone for the Northern Rockies Regional Municipality,
+ # America/Fort_Nelson.  The resolution of 2014-12-08 was reached following a
+ # 2014-11-15 poll with nearly 75% support.  Effectively, the municipality has
+ # been on MST (-0700) like Dawson Creek since it advanced its clocks on
+ # 2015-03-08.
+ #
+ # From Paul Eggert (2015-09-23):
+ # Shanks says Fort Nelson did not observe DST in 1946, unlike Vancouver.
+ 
  # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
  Rule    Vanc    1918    only    -       Apr     14      2:00    1:00    D
  Rule    Vanc    1918    only    -       Oct     27      2:00    0       S
  Rule    Vanc    1942    only    -       Feb      9      2:00    1:00    W # War
  Rule    Vanc    1945    only    -       Aug     14      23:00u  1:00    P # Peace
*** 1862,1871 ****
--- 1858,1873 ----
                          -8:00   Canada  P%sT
  Zone America/Dawson_Creek -8:00:56 -    LMT     1884
                          -8:00   Canada  P%sT    1947
                          -8:00   Vanc    P%sT    1972 Aug 30  2:00
                          -7:00   -       MST
+ Zone America/Fort_Nelson        -8:10:47 -      LMT     1884
+                         -8:00   Vanc    P%sT    1946
+                         -8:00   -       PST     1947
+                         -8:00   Vanc    P%sT    1987
+                         -8:00   Canada  P%sT    2015 Mar  8  2:00
+                         -7:00   -       MST
  Zone America/Creston    -7:46:04 -      LMT     1884
                          -7:00   -       MST     1916 Oct 1
                          -8:00   -       PST     1918 Jun 2
                          -7:00   -       MST
  
*** 1873,1894 ****
  
  # From Paul Eggert (2006-03-22):
  # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
  # Mathew Englander (1996-10-07) gives the following refs:
  #       * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
! #       c. 7 defines Yukon standard time as UTC-9.  This is still valid;
  #       see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
  #       * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
  #       * O.I.C. 1980/02 established DST.
  #       * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
- # Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
- # with Englander.
- # From Chris Walton (2006-06-26):
- # Here is a link to the old daylight saving portion of the interpretation
- # 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
  #
--- 1875,1994 ----
  
  # From Paul Eggert (2006-03-22):
  # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
  # Mathew Englander (1996-10-07) gives the following refs:
  #       * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
! #       c. 7 defines Yukon standard time as UTC-9....
  #       see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
+ #       [http://canlii.ca/t/7vhg]
  #       * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
  #       * O.I.C. 1980/02 established DST.
  #       * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
  
+ # From Brian Inglis (2015-04-14):
+ #
+ # I tried to trace the history of Yukon time and found the following
+ # regulations, giving the reference title and URL if found, regulation name,
+ # and relevant quote if available.  Each regulation specifically revokes its
+ # predecessor.  The final reference is to the current Interpretation Act
+ # authorizing and resulting from these regulatory changes.
+ #
+ # Only recent regulations were retrievable via Yukon government site search or
+ # index, and only some via Canadian legal sources.  Other sources used include
+ # articles titled "Standard Time and Time Zones in Canada" from JRASC via ADS
+ # Abstracts, cited by ADO for 1932 ..., and updated versions from 1958 and
+ # 1970 quoted below; each article includes current extracts from provincial
+ # and territorial ST and DST regulations at the end, summaries and details of
+ # standard times and daylight saving time at many locations across Canada,
+ # with time zone maps, tables and calculations for Canadian Sunrise, Sunset,
+ # and LMST; they also cover many countries and global locations, with a chart
+ # and table showing current Universal Time offsets, and may be useful as
+ # another source of information for 1970 and earlier.
+ #
+ # * Standard Time and Time Zones in Canada; Smith, C.C.; JRASC, Vol. 26,
+ #   pp.49-77; February 1932; SAO/NASA Astrophysics Data System (ADS)
+ #   http://adsabs.harvard.edu/abs/1932JRASC..26...49S from p.75:
+ #   Yukon Interpretation Ordinance
+ #   Yukon standard time is the local mean time at the one hundred and
+ #   thirty-fifth meridian.
+ #
+ # * Standard Time and Time Zones in Canada; Smith, C.C.; Thomson, Malcolm M.;
+ #   JRASC, Vol. 52, pp.193-223; October 1958; SAO/NASA Astrophysics Data System
+ #   (ADS) http://adsabs.harvard.edu/abs/1958JRASC..52..193S from pp.220-1:
+ #   Yukon Interpretation Ordinance, 1955, Chap. 16.
+ #
+ #     (1) Subject to this section, standard time shall be reckoned as nine
+ #     hours behind Greenwich Time and called Yukon Standard Time.
+ #
+ #     (2) Notwithstanding subsection (1), the Commissioner may make regulations
+ #     varying the manner of reckoning standard time.
+ #
+ # * Yukon Territory Commissioner's Order 1966-20 Interpretation Ordinance
+ #   http://? - no online source found
+ #
+ # * Standard Time and Time Zones in Canada; Thomson, Malcolm M.; JRASC,
+ #   Vol. 64, pp.129-162; June 1970; SAO/NASA Astrophysics Data System (ADS)
+ #   http://adsabs.harvard.edu/abs/1970JRASC..64..129T from p.156: Yukon
+ #   Territory Commissioner's Order 1967-59 Interpretation Ordinance ...
+ #
+ #     1. Commissioner's Order 1966-20 dated at Whitehorse in the Yukon
+ #     Territory on 27th January, 1966, is hereby revoked.
+ #
+ #     2. Yukon (East) Standard Time as defined by section 36 of the
+ #     Interpretation Ordinance from and after mid-night on the 28th day of May,
+ #     1967 shall be reckoned in the same manner as Pacific Standard Time, that
+ #     is to say, eight hours behind Greenwich Time in the area of the Yukon
+ #     Territory lying east of the 138th degree longitude west.
+ #
+ #     3. In the remainder of the Territory, lying west of the 138th degree
+ #     longitude west, Yukon (West) Standard Time shall be reckoned as nine
+ #     hours behind Greenwich Time.
+ #
+ # * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214
+ #   http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html
+ #   C.O. 1973/214 INTERPRETATION ACT ...
+ #
+ #     1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby
+ #     revoked.
+ #
+ #     2. Yukon Standard Time as defined by section 36 of the Interpretation
+ #     Act from and after midnight on the twenty-eighth day of October, 1973
+ #     shall be reckoned in the same manner as Pacific Standard Time, that is
+ #     to say eight hours behind Greenwich Time.
+ #
+ # * O.I.C. 1980/02 INTERPRETATION ACT
+ #   http://? - no online source found
+ #
+ # * Yukon Daylight Saving Time, YOIC 1987/56
+ #   http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
+ #   O.I.C. 1987/056 INTERPRETATION ACT ...
+ #
+ #   In every year between
+ #     (a) two o'clock in the morning in the first Sunday in April, and
+ #     (b) two o'clock in the morning in the last Sunday in October,
+ #   Standard Time shall be reckoned as seven hours behind Greenwich Time and
+ #   called Yukon Daylight Saving Time.
+ #   ...
+ #   Dated ... 9th day of March, A.D., 1987.
+ #
+ # * Yukon Daylight Saving Time 2006, YOIC 2006/127
+ #   http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html
+ #   O.I.C. 2006/127 INTERPRETATION ACT ...
+ #
+ #     1. In Yukon each year the time for general purposes shall be 7 hours
+ #     behind Greenwich mean time during the period commencing at two o'clock
+ #     in the forenoon on the second Sunday of March and ending at two o'clock
+ #     in the forenoon on the first Sunday of November and shall be called
+ #     Yukon Daylight Saving Time.
+ #
+ #     2. Order-in-Council 1987/56 is revoked.
+ #
+ #     3. This order comes into force January 1, 2007.
+ #
+ # * Interpretation Act, RSY 2002, c 125
+ # http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html
+ 
  # 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
  #
*** 2109,2119 ****
  Zone America/Inuvik     0       -       zzz     1953 # Inuvik founded
                          -8:00   NT_YK   P%sT    1979 Apr lastSun  2:00
                          -7:00   NT_YK   M%sT    1980
                          -7:00   Canada  M%sT
  Zone America/Whitehorse -9:00:12 -      LMT     1900 Aug 20
!                         -9:00   NT_YK   Y%sT    1966 Jul  1  2:00
                          -8:00   NT_YK   P%sT    1980
                          -8:00   Canada  P%sT
  Zone America/Dawson     -9:17:40 -      LMT     1900 Aug 20
                          -9:00   NT_YK   Y%sT    1973 Oct 28  0:00
                          -8:00   NT_YK   P%sT    1980
--- 2209,2219 ----
  Zone America/Inuvik     0       -       zzz     1953 # Inuvik founded
                          -8:00   NT_YK   P%sT    1979 Apr lastSun  2:00
                          -7:00   NT_YK   M%sT    1980
                          -7:00   Canada  M%sT
  Zone America/Whitehorse -9:00:12 -      LMT     1900 Aug 20
!                         -9:00   NT_YK   Y%sT    1967 May 28  0:00
                          -8:00   NT_YK   P%sT    1980
                          -8:00   Canada  P%sT
  Zone America/Dawson     -9:17:40 -      LMT     1900 Aug 20
                          -9:00   NT_YK   Y%sT    1973 Oct 28  0:00
                          -8:00   NT_YK   P%sT    1980
*** 2310,2321 ****
  # From Steffen Thorsen (2015-01-14), translated by Gwillim Law:
  # http://sipse.com/novedades/confirman-aplicacion-de-nueva-zona-horaria-para-quintana-roo-132331.html
  # "...the new time zone will come into effect at two o'clock on the first Sunday
  # of February, when we will have to advance the clock one hour from its current
  # time..."
- #
  # Also, the new zone will not use DST.
  
  # 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
  Rule    Mexico  1940    only    -       Dec     9       0:00    1:00    D
--- 2410,2437 ----
  # From Steffen Thorsen (2015-01-14), translated by Gwillim Law:
  # http://sipse.com/novedades/confirman-aplicacion-de-nueva-zona-horaria-para-quintana-roo-132331.html
  # "...the new time zone will come into effect at two o'clock on the first Sunday
  # of February, when we will have to advance the clock one hour from its current
  # time..."
  # Also, the new zone will not use DST.
+ #
+ # From Carlos Raúl Perasso (2015-02-02):
+ # The decree that modifies the Mexican Hour System Law has finally
+ # been published at the Diario Oficial de la Federación
+ # http://www.dof.gob.mx/nota_detalle.php?codigo=5380123&fecha=31/01/2015
+ # It establishes 5 zones for Mexico:
+ # 1- Zona Centro (Central Zone): Corresponds to longitude 90 W,
+ #    includes most of Mexico, excluding what's mentioned below.
+ # 2- Zona Pacífico (Pacific Zone): Longitude 105 W, includes the
+ #    states of Baja California Sur; Chihuahua; Nayarit (excluding Bahía
+ #    de Banderas which lies in Central Zone); Sinaloa and Sonora.
+ # 3- Zona Noroeste (Northwest Zone): Longitude 120 W, includes the
+ #    state of Baja California.
+ # 4- Zona Sureste (Southeast Zone): Longitude 75 W, includes the state
+ #    of Quintana Roo.
+ # 5- The islands, reefs and keys shall take their timezone from the
+ #    longitude they are located at.
  
  # 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
  Rule    Mexico  1940    only    -       Dec     9       0:00    1:00    D
*** 2506,2523 ****
  # 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
-                         -4:00   -       AST
- 
  # Bahamas
  #
  # For 1899 Milne gives -5:09:29.5; round that.
  #
  # From Sue Williams (2006-12-07):
--- 2622,2634 ----
  # no information
  
  ###############################################################################
  
  # Anguilla
+ # Antigua and Barbuda
  # See America/Port_of_Spain.
  
  # Bahamas
  #
  # For 1899 Milne gives -5:09:29.5; round that.
  #
  # From Sue Williams (2006-12-07):
*** 2579,2592 ****
                          -4:00   -       AST     1974 Apr 28  2:00
                          -4:00   Canada  A%sT    1976
                          -4:00   US      A%sT
  
  # Cayman Is
! # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
  Zone    America/Cayman  -5:25:32 -      LMT     1890     # Georgetown
                          -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.
  
--- 2690,2710 ----
                          -4:00   -       AST     1974 Apr 28  2:00
                          -4:00   Canada  A%sT    1976
                          -4:00   US      A%sT
  
  # Cayman Is
! 
! # From Paul Eggert (2015-05-15):
! # The Cayman government has decided to introduce DST in 2016, the idea being
! # to keep in sync with New York.  The legislation hasn't passed but the change
! # seems quite likely.  See: Meade B. Cayman 27.
! # http://www.cayman27.com.ky/2015/05/15/clock-ticks-toward-daylight-saving-time-in-cayman
! 
  Zone    America/Cayman  -5:25:32 -      LMT     1890     # Georgetown
                          -5:07:11 -      KMT     1912 Feb # Kingston Mean Time
!                         -5:00   -       EST     2016
!                         -5:00   US      E%sT
  
  # Costa Rica
  
  # Milne gives -5:36:13.3 as San José mean time; round to nearest.