From 978109124abff7e8527ab3da5798228c938b8ff1 Mon Sep 17 00:00:00 2001 From: Tim Parenti Date: Sun, 18 Jan 2015 14:15:33 -0500 Subject: New zone America/FCP_QRoo. * northamerica (America/FCP_QRoo): New zone for portions of Quintana Roo state in Mexico which have observed EST without DST since 1998. * zone.tab, zone1970.tab: Add entries for it, update description of America/Cancun to reflect that it no longer represents all of Quintana Roo. * NEWS: Document this. --- NEWS | 4 ++++ northamerica | 19 ++++++++++++++++++- zone.tab | 3 ++- zone1970.tab | 3 ++- 4 files changed, 26 insertions(+), 3 deletions(-) diff --git a/NEWS b/NEWS index b372dc8..729ebbf 100644 --- a/NEWS +++ b/NEWS @@ -17,6 +17,10 @@ Unreleased, experimental changes transition was Oct. 29, not Nov. 29. Remove incorrect data from Shanks about time in Iceland between 1837 and 1908. + A new zone, America/FCP_QRoo, for portions of the Mexican state of + Quintana Roo which have observed Eastern Time without DST since 1998. + (Thanks to Gwillim Law and Tim Parenti.) + Some more zones have been turned into links, when they differed from existing zones only for older time stamps. As usual, these changes affect UTC offsets in pre-1970 time stamps only. diff --git a/northamerica b/northamerica index cb94c5e..f80178b 100644 --- a/northamerica +++ b/northamerica @@ -2314,6 +2314,18 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # time..." # # Also, the new zone will not use DST. +# +# From Tim Parenti (2015-01-18): +# A new zone for Felipe Carrillo Puerto (FCP) is needed which apparently did not +# switch to Central Time on 1998-08-02 with Cancún and the rest of Quintana Roo state. +# Assume that the reference to FCP "refus[ing] to change its time zone" since then +# refers to a refusal to observe DST, putting it out of sync with Cancún during the +# winter. Since there are multiple places within Mexico referred to as Felipe +# Carrillo Puerto or Quintana Roo, use America/FCP_QRoo to refer to the municipio of +# FCP inside the state of QRoo, abbreviating to stay under 14 characters. +# +# Since Cancún is shifting to EST without DST on 2015-02-01, this brings these regions +# back into synchronicity with each other. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mexico 1939 only - Feb 5 0:00 1:00 D @@ -2331,12 +2343,17 @@ 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 +# Most of Quintana Roo state; 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 2015 Feb 1 2:00 -5:00 - EST +# Felipe Carrillo Puerto municipio (within Quintana Roo state) +Zone America/FCP_QRoo -5:52:11 - LMT 1922 Jan 1 0:07:49 + -6:00 - CST 1981 Dec 23 + -5:00 Mexico E%sT 1998 Aug 2 2:00 + -5:00 - EST # Campeche, Yucatán; represented by Mérida Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32 -6:00 - CST 1981 Dec 23 diff --git a/zone.tab b/zone.tab index f418e7f..584dc85 100644 --- a/zone.tab +++ b/zone.tab @@ -274,7 +274,8 @@ MU -2010+05730 Indian/Mauritius MV +0410+07330 Indian/Maldives MW -1547+03500 Africa/Blantyre MX +1924-09909 America/Mexico_City Central Time - most locations -MX +2105-08646 America/Cancun Eastern Standard Time - Quintana Roo +MX +2105-08646 America/Cancun Eastern Standard Time - most of Quintana Roo +MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto in Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatan MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border diff --git a/zone1970.tab b/zone1970.tab index 5da0200..09e0748 100644 --- a/zone1970.tab +++ b/zone1970.tab @@ -233,7 +233,8 @@ MT +3554+01431 Europe/Malta MU -2010+05730 Indian/Mauritius MV +0410+07330 Indian/Maldives MX +1924-09909 America/Mexico_City Central Time - most locations -MX +2105-08646 America/Cancun Eastern Standard Time - Quintana Roo +MX +2105-08646 America/Cancun Eastern Standard Time - most of Quintana Roo +MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto in Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatán MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo León, Tamaulipas away from US border MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo León, Tamaulipas near US border -- 2.1.1