Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/external/public-domain/tz/dist Update to tzdata2021e (with m...
details: https://anonhg.NetBSD.org/src/rev/79e02309ffda
branches: trunk
changeset: 1024413:79e02309ffda
user: kre <kre%NetBSD.org@localhost>
date: Fri Oct 22 21:01:06 2021 +0000
description:
Update to tzdata2021e (with much of 2020b still omitted)
This includes 2021c (no changes) 2021d (Fiji change) 2021e (Palestine)
Fiji has cancelled summer time changes for 2021/2 summer. Currently
assume it will be back in 2022/3.
Palestine ends summer time October 29 01:00 (rather than Oct 30).
Pacific/Enderbury is renamed to Pacific/Kanton and updated for
historic data (Pacific/Enderbury retained as a link for compat).
Historic timestamp fixes for Niue, Rarotonga, Tongatapu
diffstat:
external/public-domain/tz/dist/TZDATA_VERSION | 2 +-
external/public-domain/tz/dist/asia | 32 +++-
external/public-domain/tz/dist/australasia | 133 ++++++++++++++++++++--
external/public-domain/tz/dist/backward | 1 +
external/public-domain/tz/dist/leap-seconds.list | 8 +-
external/public-domain/tz/dist/leapseconds | 8 +-
external/public-domain/tz/dist/version | 2 +-
7 files changed, 149 insertions(+), 37 deletions(-)
diffs (truncated from 363 to 300 lines):
diff -r 094dce2750b2 -r 79e02309ffda external/public-domain/tz/dist/TZDATA_VERSION
--- a/external/public-domain/tz/dist/TZDATA_VERSION Fri Oct 22 20:54:36 2021 +0000
+++ b/external/public-domain/tz/dist/TZDATA_VERSION Fri Oct 22 21:01:06 2021 +0000
@@ -1,1 +1,1 @@
-tzdata-2021b-partial
+tzdata-2021e-(part-2021b)
diff -r 094dce2750b2 -r 79e02309ffda external/public-domain/tz/dist/asia
--- a/external/public-domain/tz/dist/asia Fri Oct 22 20:54:36 2021 +0000
+++ b/external/public-domain/tz/dist/asia Fri Oct 22 21:01:06 2021 +0000
@@ -34,9 +34,6 @@
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
# (See the 'europe' file for a fuller citation.)
#
-# A reliable and entertaining source about time zones is
-# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
-#
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
# std dst
@@ -2749,7 +2746,7 @@
#
# peninsular Malaysia
# taken from Mok Ly Yng (2003-10-30)
-# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
+# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
@@ -3388,11 +3385,6 @@
# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
-# From Tim Parenti (2020-10-20):
-# Predict future fall transitions at 01:00 on the Saturday preceding October's
-# last Sunday (i.e., Sat>=24). This is consistent with our predictions since
-# 2016, although the time of the change differed slightly in 2019.
-
# From Pierre Cashon (2020-10-20):
# The summer time this year started on March 28 at 00:00.
# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
@@ -3405,6 +3397,17 @@
# For now, guess spring-ahead transitions are at 00:00 on the Saturday
# preceding March's last Sunday (i.e., Sat>=24).
+# From P Chan (2021-10-18):
+# http://wafa.ps/Pages/Details/34701
+# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
+#
+# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
+# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
+# by 60 minutes backwards.
+#
+# From Paul Eggert (2021-10-20):
+# Guess future fall transitions on October's last Friday at 01:00.
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
@@ -3440,7 +3443,8 @@
Rule Palestine 2019 only - Mar 29 0:00 1:00 S
Rule Palestine 2019 only - Oct Sat>=24 0:00 0 -
Rule Palestine 2020 max - Mar Sat>=24 0:00 1:00 S
-Rule Palestine 2020 max - Oct Sat>=24 1:00 0 -
+Rule Palestine 2020 only - Oct 24 1:00 0 -
+Rule Palestine 2021 max - Oct lastFri 1:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
@@ -3509,6 +3513,12 @@
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
+# From P Chan (2021-05-10):
+# Here's a fairly comprehensive article in Japanese:
+# https://wiki.suikawiki.org/n/Philippine%20Time
+# From Paul Eggert (2021-05-10):
+# The info in the Japanese table has not been absorbed (yet) below.
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
@@ -3580,7 +3590,7 @@
# Singapore
# taken from Mok Ly Yng (2003-10-30)
-# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
+# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
diff -r 094dce2750b2 -r 79e02309ffda external/public-domain/tz/dist/australasia
--- a/external/public-domain/tz/dist/australasia Fri Oct 22 20:54:36 2021 +0000
+++ b/external/public-domain/tz/dist/australasia Fri Oct 22 21:01:06 2021 +0000
@@ -385,9 +385,22 @@
# "Minister for Employment, Parveen Bala says they had never thought of
# stopping daylight saving. He says it was just to decide on when it should
# start and end. Bala says it is a short period..."
-# Since the end date is still in line with our ongoing predictions, assume for
-# now that the later-than-usual start date is a one-time departure from the
-# recent second Sunday in November pattern.
+#
+# From Tim Parenti (2021-10-11), per Jashneel Kumar (2021-10-11) and P Chan
+# (2021-10-12):
+# https://www.fiji.gov.fj/Media-Centre/Speeches/English/PM-BAINIMARAMA-S-COVID-19-ANNOUNCEMENT-10-10-21
+# https://www.fbcnews.com.fj/news/covid-19/curfew-moved-back-to-11pm/
+# In a 2021-10-10 speech concerning updated Covid-19 mitigation measures in
+# Fiji, prime minister Josaia Voreqe "Frank" Bainimarama announced the
+# suspension of DST for the 2021/2022 season: "Given that we are in the process
+# of readjusting in the midst of so many changes, we will also put Daylight
+# Savings Time on hold for this year. It will also make the reopening of
+# scheduled commercial air service much smoother if we don't have to be
+# concerned shifting arrival and departure times, which may look like a simple
+# thing but requires some significant logistical adjustments domestically and
+# internationally."
+# Assume for now that DST will resume with the recent pre-2020 rules for the
+# 2022/2023 season.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 -
@@ -399,10 +412,11 @@
Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 -
Rule Fiji 2014 only - Jan Sun>=18 2:00 0 -
Rule Fiji 2014 2018 - Nov Sun>=1 2:00 1:00 -
-Rule Fiji 2015 max - Jan Sun>=12 3:00 0 -
+Rule Fiji 2015 2021 - Jan Sun>=12 3:00 0 -
Rule Fiji 2019 only - Nov Sun>=8 2:00 1:00 -
Rule Fiji 2020 only - Dec 20 2:00 1:00 -
-Rule Fiji 2021 max - Nov Sun>=8 2:00 1:00 -
+Rule Fiji 2022 max - Nov Sun>=8 2:00 1:00 -
+Rule Fiji 2023 max - Jan Sun>=12 3:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva
12:00 Fiji +12/+13
@@ -464,7 +478,7 @@
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki
12:00 - +12
-Zone Pacific/Enderbury -11:24:20 - LMT 1901
+Zone Pacific/Kanton 0 - -00 1937 Aug 31
-12:00 - -12 1979 Oct
-11:00 - -11 1994 Dec 31
13:00 - +13
@@ -597,13 +611,46 @@
# was probably like Pacific/Auckland
# Cook Is
-# From Shanks & Pottenger:
+#
+# From Alexander Krivenyshev (2021-03-24):
+# In 1899 the Cook Islands celebrated Christmas twice to correct the calendar.
+# According to the old books, missionaries were unaware of
+# the International Date line, when they came from Sydney.
+# Thus the Cook Islands were one day ahead....
+# http://nzetc.victoria.ac.nz/tm/scholarly/tei-KloDisc-t1-body-d18.html
+# ... Appendix to the Journals of the House of Representatives, 1900
+# https://atojs.natlib.govt.nz/cgi-bin/atojs?a=d&d=AJHR1900-I.2.1.2.3
+# (page 20)
+#
+# From Michael Deckers (2021-03-24):
+# ... in the Cook Island Act of 1915-10-11, online at
+# http://www.paclii.org/ck/legis/ck-nz_act/cia1915132/
+# "651. The hour of the day shall in each of the islands included in the
+# Cook Islands be determined in accordance with the meridian of that island."
+# so that local (mean?) time was still used in Rarotonga (and Niue) in 1915.
+# This was changed in the Cook Island Amendment Act of 1952-10-16 ...
+# http://www.paclii.org/ck/legis/ck-nz_act/ciaa1952212/
+# "651 (1) The hour of the day in each of the islands included in the Cook
+# Islands, other than Niue, shall be determined as if each island were
+# situated on the meridian one hundred and fifty-seven degrees thirty minutes
+# West of Greenwich. (2) The hour of the day in the Island of Niue shall be
+# determined as if that island were situated on the meridian one hundred and
+# seventy degrees West of Greenwich."
+# This act does not state when it takes effect, so one has to assume it
+# applies since 1952-10-16. But there is the possibility that the act just
+# legalized prior existing practice, as we had seen with the Guernsey law of
+# 1913-06-18 for the switch in 1909-04-19.
+#
+# From Paul Eggert (2021-03-24):
+# Transitions after 1952 are from Shanks & Pottenger.
+#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Cook 1978 only - Nov 12 0:00 0:30 -
Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 -
Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua
+Zone Pacific/Rarotonga 13:20:56 - LMT 1899 Dec 26 # Avarua
+ -10:39:04 - LMT 1952 Oct 16
-10:30 - -1030 1978 Nov 12
-10:00 Cook -10/-0930
@@ -611,10 +658,18 @@
# Niue
+# See Pacific/Raratonga comments for 1952 transition.
+#
+# From Tim Parenti (2021-09-13):
+# Consecutive contemporaneous editions of The Air Almanac listed -11:20 for
+# Niue as of Apr 1964 but -11 as of Aug 1964:
+# Apr 1964: https://books.google.com/books?id=_1So677Y5vUC&pg=SL1-PA23
+# Aug 1964: https://books.google.com/books?id=MbJloqd-zyUC&pg=SL1-PA23
+# Without greater specificity, guess 1964-07-01 for this transition.
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi
- -11:20 - -1120 1951
- -11:30 - -1130 1978 Oct 1
+Zone Pacific/Niue -11:19:40 - LMT 1952 Oct 16 # Alofi
+ -11:20 - -1120 1964 Jul
-11:00 - -11
# Norfolk
@@ -638,6 +693,7 @@
Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
9:48:32 - PMMT 1895 # Port Moresby Mean Time
10:00 - +10
+Link Pacific/Port_Moresby Antarctica/DumontDUrville
#
# From Paul Eggert (2014-10-13):
# Base the Bougainville entry on the Arawa-Kieta region, which appears to have
@@ -799,8 +855,8 @@
Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 -
Rule Tonga 2017 only - Jan Sun>=15 3:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Pacific/Tongatapu 12:19:20 - LMT 1901
- 12:20 - +1220 1941
+Zone Pacific/Tongatapu 12:19:12 - LMT 1945 Sep 10
+ 12:20 - +1220 1961
13:00 - +13 1999
13:00 Tonga +13/+14
@@ -1742,6 +1798,23 @@
# One source for this is page 202 of: Bartky IR. One Time Fits All:
# The Campaigns for Global Uniformity (2007).
+# Kanton
+
+# From Paul Eggert (2021-05-27):
+# Kiribati's +13 timezone is represented by Kanton, its only populated
+# island. (It was formerly spelled "Canton", but Gilbertese lacks "C".)
+# Kanton was settled on 1937-08-31 by two British radio operators
+# <https://history.state.gov/historicaldocuments/frus1937v02/d94>;
+# Americans came the next year and built an airfield, partly to
+# establish airline service and perhaps partly anticipating the
+# next war. Aside from the war, the airfield was used by commercial
+# airlines until long-range jets became standard; although currently
+# for emergency use only, China says it is considering rebuilding the
+# airfield for high-end niche tourism. Kanton has about two dozen
+# people, caretakers who rotate in from the rest of Kiribati in 2-5
+# year shifts, and who use some of the leftover structures
+# <http://pipa.neaq.org/2012/06/images-of-kanton-island.html>.
+
# Kwajalein
# From an AP article (1993-08-22):
@@ -2025,6 +2098,17 @@
# Tonga
+# From Paul Eggert (2021-03-04):
+# In 1943 "The standard time kept is 12 hrs. 19 min. 12 sec. fast
+# on Greenwich mean time." according to the Admiralty's Hydrographic
+# Dept., Pacific Islands Pilot, Vol. II, 7th ed., 1943, p 360.
+
+# From Michael Deckers (2021-03-03):
+# [Ian R Bartky: "One Time Fits All: The Campaigns for Global Uniformity".
+# Stanford University Press. 2007. p. 255]:
+# On 10 September 1945 Tonga adopted a standard time 12 hours,
+# 20 minutes in advance of Greenwich.
+
# From Paul Eggert (1996-01-22):
# Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting
# to sneak ahead of [New Zealanders] by introducing daylight-saving time."
@@ -2053,9 +2137,26 @@
# The Crown Prince, presented an unanswerable argument: "Remember that
# on the World Day of Prayer, you would be the first people on Earth
# to say your prayers in the morning."
-
-# From Paul Eggert (2006-03-22):
-# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
+#
+# From Tim Parenti (2021-09-13), per Paul Eggert (2006-03-22) and Michael
+# Deckers (2021-03-03):
+# Mundell places the transition from +12:20 to +13 in 1941, while Shanks &
+# Pottenger say the transition was on 1968-10-01.
+#
+# The Air Almanac published contemporaneous tables of standard times,
+# which listed +12:20 as of Nov 1960 and +13 as of Mar 1961:
+# Nov 1960: https://books.google.com/books?id=bVgtWM6kPZUC&pg=SL1-PA19
+# Mar 1961: https://books.google.com/books?id=W2nItAul4g0C&pg=SL1-PA19
+# (Thanks to P Chan for pointing us toward these sources.)
+# This agrees with Bartky, who writes that "since 1961 [Tonga's] official time
+# has been thirteen hours in advance of Greenwich time" (p. 202) and further
+# writes in an endnote that this was because "the legislation was amended" on
+# 1960-10-19. (p. 255)
+#
+# Without greater specificity, presume that Bartky and the Air Almanac point to
+# a 1961-01-01 transition, as Tāufaʻāhau Tupou IV was still Crown Prince in
+# 1961 and this still jives with the gist of Mundell's telling, and go with
Home |
Main Index |
Thread Index |
Old Index