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-rw-r--r--src/timezone/data/backzone110
1 files changed, 106 insertions, 4 deletions
diff --git a/src/timezone/data/backzone b/src/timezone/data/backzone
index f464131abd3..f100f8a3d71 100644
--- a/src/timezone/data/backzone
+++ b/src/timezone/data/backzone
@@ -8,7 +8,7 @@
# the file CONTRIBUTING in the tz distribution.
-# From Paul Eggert (2014-08-12):
+# From Paul Eggert (2014-10-31):
# This file contains data outside the normal scope of the tz database,
# in that its zones do not differ from normal tz zones after 1970.
@@ -24,11 +24,10 @@
# replaced by links as their data entries were questionable and/or they
# differed from other zones only in pre-1970 time stamps.
-# Unless otherwise specified, the source for the data is the following,
-# which does not itself cite sources and is often wrong:
-#
+# Unless otherwise specified, the source for data through 1990 is:
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
# This file is not intended to be compiled standalone, as it
# assumes rules from other files. In the tz distribution, use
@@ -41,6 +40,27 @@
# As explained in the zic man page, the zone columns are:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
+# Ethiopia
+# From Paul Eggert (2014-07-31):
+# Like the Swahili of Kenya and Tanzania, many Ethiopians keep a
+# 12-hour clock starting at our 06:00, so their "8 o'clock" is our
+# 02:00 or 14:00. Keep this in mind when you ask the time in Amharic.
+#
+# Shanks & Pottenger write that Ethiopia had six narrowly-spaced time
+# zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in
+# 1890, and that they switched to 3:00 on 1936-05-05. Perhaps 38E50
+# was for Adis Dera. Quite likely the Shanks data entries are wrong
+# anyway.
+Zone Africa/Addis_Ababa 2:34:48 - LMT 1870
+ 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
+ 3:00 - EAT
+
+# Eritrea
+Zone Africa/Asmara 2:35:32 - LMT 1870
+ 2:35:32 - AMT 1890 # Asmara Mean Time
+ 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
+ 3:00 - EAT
+
# Mali (southern)
Zone Africa/Bamako -0:32:00 - LMT 1912
0:00 - GMT 1934 Feb 26
@@ -80,6 +100,16 @@ Zone Africa/Dakar -1:09:44 - LMT 1912
-1:00 - WAT 1941 Jun
0:00 - GMT
+# Tanzania
+Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931
+ 3:00 - EAT 1948
+ 2:45 - BEAUT 1961
+ 3:00 - EAT
+
+# Djibouti
+Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul
+ 3:00 - EAT
+
# Cameroon
# Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger.
Zone Africa/Douala 0:38:48 - LMT 1912
@@ -119,6 +149,13 @@ Zone Africa/Juba 2:06:24 - LMT 1931
2:00 Sudan CA%sT 2000 Jan 15 12:00
3:00 - EAT
+# Uganda
+Zone Africa/Kampala 2:09:40 - LMT 1928 Jul
+ 3:00 - EAT 1930
+ 2:30 - BEAT 1948
+ 2:45 - BEAUT 1957
+ 3:00 - EAT
+
# Rwanda
Zone Africa/Kigali 2:00:16 - LMT 1935 Jun
2:00 - CAT
@@ -175,6 +212,12 @@ Zone Africa/Maseru 1:50:00 - LMT 1903 Mar
Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar
2:00 - SAST
+# Somalia
+Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov
+ 3:00 - EAT 1931
+ 2:30 - BEAT 1957
+ 3:00 - EAT
+
# Niger
Zone Africa/Niamey 0:08:28 - LMT 1912
-1:00 - WAT 1934 Feb 26
@@ -330,6 +373,20 @@ Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
8:00 PRC C%sT
Link Asia/Chongqing Asia/Chungking
+# Vietnam
+# From Paul Eggert (2014-10-13):
+# See Asia/Ho_Chi_Minh for the source for this data.
+# Trần's book says the 1954-55 transition to 07:00 in Hanoi was in
+# October 1954, with exact date and time unspecified.
+Zone Asia/Hanoi 7:03:24 - LMT 1906 Jul 1
+ 7:06:30 - PLMT 1911 May 1
+ 7:00 - ICT 1942 Dec 31 23:00
+ 8:00 - IDT 1945 Mar 14 23:00
+ 9:00 - JST 1945 Sep 2
+ 7:00 - ICT 1947 Apr 1
+ 8:00 - IDT 1954 Oct
+ 7:00 - ICT
+
# China
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
# Heilongjiang (except Mohe county), Jilin
@@ -353,11 +410,42 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
# Portuguese India switched to GMT+5 on 1912-01-01.
#Zone Asia/Panaji [not enough info to complete]
+# Cambodia
+# From Paul Eggert (2014-10-11):
+# See Asia/Ho_Chi_Minh for the source for most of this data. Also, guess
+# (1) Cambodia reverted to UT+7 on 1945-09-02, when Vietnam did, and
+# (2) they also reverted to UT+7 on 1953-11-09, the date of independence.
+# These guesses are probably wrong but they're better than guessing no
+# transitions there.
+Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
+ 7:06:30 - PLMT 1911 May 1
+ 7:00 - ICT 1942 Dec 31 23:00
+ 8:00 - IDT 1945 Mar 14 23:00
+ 9:00 - JST 1945 Sep 2
+ 7:00 - ICT 1947 Apr 1
+ 8:00 - IDT 1953 Nov 9
+ 7:00 - ICT
+
# Israel
Zone Asia/Tel_Aviv 2:19:04 - LMT 1880
2:21 - JMT 1918
2:00 Zion I%sT
+# Laos
+# From Paul Eggert (2014-10-11):
+# See Asia/Ho_Chi_Minh for the source for most of this data.
+# Trần's book says that Laos reverted to UT+7 on 1955-04-15.
+# Also, guess that Laos reverted to UT+7 on 1945-09-02, when Vietnam did;
+# this is probably wrong but it's better than guessing no transition.
+Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
+ 7:06:30 - PLMT 1911 May 1
+ 7:00 - ICT 1942 Dec 31 23:00
+ 8:00 - IDT 1945 Mar 14 23:00
+ 9:00 - JST 1945 Sep 2
+ 7:00 - ICT 1947 Apr 1
+ 8:00 - IDT 1955 Apr 15
+ 7:00 - ICT
+
# Jan Mayen
# From Whitman:
Zone Atlantic/Jan_Mayen -1:00 - EGT
@@ -473,5 +561,19 @@ Zone Europe/Zagreb 1:03:52 - LMT 1884
1:00 - CET 1982 Nov 27
1:00 EU CE%sT
+# Madagascar
+Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul
+ 3:00 - EAT 1954 Feb 27 23:00s
+ 3:00 1:00 EAST 1954 May 29 23:00s
+ 3:00 - EAT
+
+# Comoros
+Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro
+ 3:00 - EAT
+
+# Mayotte
+Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
+ 3:00 - EAT
+
# US minor outlying islands
Zone Pacific/Johnston -10:00 - HST