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authorTim Parenti <tim@timtimeonline.com>2015-01-18 14:15:33 -0500
committerPaul Eggert <eggert@cs.ucla.edu>2015-01-28 10:21:03 -0800
commit314de75d9710751ebf59190822d6d4fc4cf4f727 (patch)
tree511f9217a5a566ca57376ae93b3e5f791d8fe498
parent31a8a0edcab52edf72244966c10dd2ce6e93df29 (diff)
downloadtz-314de75d9710751ebf59190822d6d4fc4cf4f727.tar.gz
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 * zone.tab, zone1970.tab: Add entries for it, update description of America/Cancun to reflect that it no longer represents all of Quintana Roo.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.
-rw-r--r--NEWS4
-rw-r--r--northamerica19
-rw-r--r--zone.tab3
-rw-r--r--zone1970.tab3
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