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Replace some zones with links when that doesn't lose useful info.

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This is like the 2013-09-02 change, but for the Pacific this time.
* antarctica (Antarctica/DumontDUrville):
* australasia (Pacific/Tahiti, Pacific/Saipan, Pacific/Majuro)
(Pacific/Chuuk, Pacific/Pohnpei, Pacific/Palau, Pacific/Funafuti)
(Pacific/Midway, Pacific/Wake, Pacific/Wallis):
Remove zone, replacing each with a link to a region that has had
the same UTC offset since 1970.  This removes data that were
largely invented, either by us or almost surely by Shanks or his
sources.
* asia, australasia, northamerica: Create links accordingly.
* NEWS: Document this.
This commit is contained in:
Paul Eggert
2014-07-08 23:48:16 -07:00
parent f04facaf78
commit 662016b64a
5 changed files with 33 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
NEWS
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@ -58,6 +58,15 @@ Unreleased, experimental changes
UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl;
Treindl sent helpful translations of two papers by Guo Qingsheng.)
Some zones have been turned into links, when they differed from existing
zones only for older UTC offsets where the data were likely invented.
These changes affect UTC offsets in pre-1970 time stamps only. This is
similar to the change in release 2013e, except this time for the Pacific.
The affected zones are: Antarctica/DumontDUrville, Pacific/Chuuk,
Pacific/Funafuti, Pacific/Majuro, Pacific/Midway, Pacific/Palau,
Pacific/Pohnpei, Pacific/Saipan, Pacific/Tahiti, Pacific/Wake, and
Pacific/Wallis.
Asia/Shanghai's pre-standard-time UT offset has been changed from
8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its
transition to standard time has been changed from 1928 to 1901.

7
antarctica
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@ -180,15 +180,10 @@ Zone Indian/Kerguelen 0 - zzz 1950 # Port-aux-Français
# year-round base in the main continent
# Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11
# <http://en.wikipedia.org/wiki/Dumont_d'Urville_Station> (2005-12-05)
# See Pacific/Port_Moresby.
#
# Another base at Port-Martin, 50km east, began operation in 1947.
# It was destroyed by fire on 1952-01-14.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Antarctica/DumontDUrville 0 - zzz 1947
10:00 - PMT 1952 Jan 14 # Port-Martin Time
0 - zzz 1956 Nov
10:00 - DDUT # Dumont-d'Urville Time
# France & Italy - year-round base
# Concordia, -750600+1232000, since 2005

3
asia
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@ -1432,6 +1432,9 @@ Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
9:00 Japan J%sT
# Since 1938, all Japanese possessions have been like Asia/Tokyo.
# The following region has been like Asia/Tokyo since at least 1970.
Link Asia/Tokyo Pacific/Palau
# Jordan
#
# From <http://star.arabia.com/990701/JO9.html>

53
australasia
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@ -355,8 +355,7 @@ Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea
-9:00 - GAMT # Gambier Time
Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct
-9:30 - MART # Marquesas Time
Zone Pacific/Tahiti -9:58:16 - LMT 1912 Oct # Papeete
-10:00 - TAHT # Tahiti Time
# See Pacific/Honolulu for Tahiti.
# Clipperton (near North America) is administered from French Polynesia;
# it is uninhabited.
@ -366,11 +365,16 @@ Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31
9:39:00 - LMT 1901 # Agana
10:00 - GST 2000 Dec 23 # Guam
10:00 - ChST # Chamorro Standard Time
Link Pacific/Guam Pacific/Saipan # N Mariana Is
# Kiribati
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki
12:00 - GILT # Gilbert Is Time
Link Pacific/Tarawa Pacific/Funafuti # Tuvalu
Link Pacific/Tarawa Pacific/Majuro # Marshall Is (most locations)
Link Pacific/Tarawa Pacific/Wake # in US minor outlying islands
Link Pacific/Tarawa Pacific/Wallis # Wallis and Futuna
Zone Pacific/Enderbury -11:24:20 - LMT 1901
-12:00 - PHOT 1979 Oct # Phoenix Is Time
-11:00 - PHOT 1995
@ -381,29 +385,20 @@ Zone Pacific/Kiritimati -10:29:20 - LMT 1901
14:00 - LINT
# N Mariana Is
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
9:43:00 - LMT 1901
9:00 - MPT 1969 Oct # N Mariana Is Time
10:00 - MPT 2000 Dec 23
10:00 - ChST # Chamorro Standard Time
# See Pacific/Guam.
# Marshall Is
# See Pacific/Tarawa for most locations.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Majuro 11:24:48 - LMT 1901
11:00 - MHT 1969 Oct # Marshall Islands Time
12:00 - MHT
Zone Pacific/Kwajalein 11:09:20 - LMT 1901
11:00 - MHT 1969 Oct
-12:00 - KWAT 1993 Aug 20 # Kwajalein Time
12:00 - MHT
# Micronesia
# See Pacific/Guadalcanal for Pohnpei.
# See Pacific/Port_Moresby for Chuuk.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Chuuk 10:07:08 - LMT 1901
10:00 - CHUT # Chuuk Time
Zone Pacific/Pohnpei 10:32:52 - LMT 1901 # Kolonia
11:00 - PONT # Pohnpei Time
Zone Pacific/Kosrae 10:51:56 - LMT 1901
11:00 - KOST 1969 Oct # Kosrae Time
12:00 - KOST 1999
@ -509,15 +504,15 @@ Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston
11:30 - NFT # Norfolk Time
# Palau (Belau)
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror
9:00 - PWT # Palau Time
# See Asia/Tokyo.
# Papua New Guinea
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
9:48:32 - PMMT 1895 # Port Moresby Mean Time
10:00 - PGT # Papua New Guinea Time
Link Pacific/Port_Moresby Antarctica/DumontDUrville
Link Pacific/Port_Moresby Pacific/Chuuk # in Micronesia
# Pitcairn
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -532,6 +527,7 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
-11:00 - NST 1967 Apr # N=Nome
-11:00 - BST 1983 Nov 30 # B=Bering
-11:00 - SST # S=Samoa
Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
# Samoa (formerly and also known as Western Samoa)
@ -619,6 +615,7 @@ Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara
11:00 - SBT # Solomon Is Time
Link Pacific/Guadalcanal Pacific/Pohnpei # in Micronesia
# Tokelau Is
#
@ -657,9 +654,7 @@ Zone Pacific/Tongatapu 12:19:20 - LMT 1901
13:00 Tonga TO%sT
# Tuvalu
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Funafuti 11:56:52 - LMT 1901
12:00 - TVT # Tuvalu Time
# See Pacific/Tarawa.
# US minor outlying islands
@ -724,21 +719,13 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901
# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun.
# " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A "
#
Zone Pacific/Midway -11:49:28 - LMT 1901
-11:00 - NST 1956 Jun 3
-11:00 1:00 NDT 1956 Sep 2
-11:00 - NST 1967 Apr # N=Nome
-11:00 - BST 1983 Nov 30 # B=Bering
-11:00 - SST # S=Samoa
# See Pacific/Pago_Pago.
# Palmyra
# uninhabited since World War II; was probably like Pacific/Kiritimati
# Wake
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Wake 11:06:28 - LMT 1901
12:00 - WAKT # Wake Time
# See Pacific/Tarawa.
# Vanuatu
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
@ -753,9 +740,7 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
11:00 Vanuatu VU%sT # Vanuatu Time
# Wallis and Futuna
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Wallis 12:15:20 - LMT 1901
12:00 - WFT # Wallis & Futuna Time
# See Pacific/Tarawa.
###############################################################################

1
northamerica
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@ -592,6 +592,7 @@ Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 #Schmitt&Cox
-10:00 - HST
Link Pacific/Honolulu Pacific/Johnston
Link Pacific/Honolulu Pacific/Tahiti # in French Polynesia
# Now we turn to US areas that have diverged from the consensus since 1970.