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Minor fixes for America/FCP_QRoo commentary

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* NEWS: America/FCP_QRoo also affects current time stamps.
* northamerica: Reformat to fit in 80 characters.
* zone.tab, zone1970.tab: Use "city, state" style for consistency.
This commit is contained in:
Paul Eggert
2015-01-28 10:19:23 -08:00
parent 314de75d97
commit 9835e23325
4 changed files with 19 additions and 18 deletions
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16
NEWS
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@ -2,25 +2,25 @@ News for the tz database
Unreleased, experimental changes
Changes affecting future time stamps
New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
(Thanks to Tim Parenti.)
Changes affecting current and future time stamps
The Mexican state of Quintana Roo, represented by America/Cancun,
will shift from Central Time with DST to Eastern Time without DST
on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.)
A new zone America/FCP_QRoo covers portions of Quintana Roo which
have observed Eastern Time without DST since 1998. (Thanks to
Gwillim Law and Tim Parenti.)
New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
(Thanks to Tim Parenti.)
Changes affecting past time stamps
Iceland observed DST in 1919 and 1921, and its 1939 fallback
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.

17
northamerica
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@ -2317,15 +2317,16 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
#
# 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.
# 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.
# 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

2
zone.tab
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@ -275,7 +275,7 @@ 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 - most of Quintana Roo
MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto in Quintana Roo
MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto, 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

2
zone1970.tab
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@ -234,7 +234,7 @@ 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 - most of Quintana Roo
MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto in Quintana Roo
MX +1935-08803 America/FCP_QRoo Eastern Standard Time - Felipe Carrillo Puerto, 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