git: 57d2cb51419c - MFC: contrib/tzdata: import tzdata 2020e
Philip Paeps
philip at FreeBSD.org
Fri Dec 25 15:29:04 UTC 2020
The branch stable/11 has been updated by philip:
URL: https://cgit.FreeBSD.org/src/commit/?id=57d2cb51419cbd7a92214cc57c2145340946efc7
commit 57d2cb51419cbd7a92214cc57c2145340946efc7
Author: Philip Paeps <philip at FreeBSD.org>
AuthorDate: 2020-12-25 15:16:38 +0000
Commit: Philip Paeps <philip at FreeBSD.org>
CommitDate: 2020-12-25 15:28:32 +0000
MFC: contrib/tzdata: import tzdata 2020e
Changes: https://github.com/eggert/tz/blob/2020e/NEWS
(cherry picked from commit dc505d53dcc15636aea9df8c03298f8c32147fa9)
---
contrib/tzdata/Makefile | 57 ++++++---
contrib/tzdata/NEWS | 46 +++++++
contrib/tzdata/africa | 236 ++++++++++++++++++++++++++++++-----
contrib/tzdata/asia | 274 +++++++++++++++++++++++++++++++----------
contrib/tzdata/australasia | 106 ++++++++++++----
contrib/tzdata/backward | 1 +
contrib/tzdata/backzone | 6 +
contrib/tzdata/etcetera | 11 +-
contrib/tzdata/europe | 16 ++-
contrib/tzdata/leapseconds | 4 +
contrib/tzdata/leapseconds.awk | 4 +
contrib/tzdata/northamerica | 202 ++++++++++++++++++++++++++++--
contrib/tzdata/theory.html | 5 +-
contrib/tzdata/version | 2 +-
contrib/tzdata/zone.tab | 9 +-
contrib/tzdata/zone1970.tab | 9 +-
16 files changed, 816 insertions(+), 172 deletions(-)
diff --git a/contrib/tzdata/Makefile b/contrib/tzdata/Makefile
index 40b81d18b0d5..5064a190c5a5 100644
--- a/contrib/tzdata/Makefile
+++ b/contrib/tzdata/Makefile
@@ -583,11 +583,19 @@ INSTALL: ALL install date.1
cp date '$(DESTDIR)$(BINDIR)/.'
cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
+# Calculate version number from git, if available.
+# Otherwise, use $(VERSION) unless it is "unknown" and there is already
+# a 'version' file, in which case reuse the existing 'version' contents
+# and append "-dirty" if the contents do not already end in "-dirty".
version: $(VERSION_DEPS)
{ (type git) >/dev/null 2>&1 && \
V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
--abbrev=7 --dirty` || \
- V='$(VERSION)'; } && \
+ if test '$(VERSION)' = unknown && V=`cat $@`; then \
+ case $$V in *-dirty);; *) V=$$V-dirty;; esac; \
+ else \
+ V='$(VERSION)'; \
+ fi; } && \
printf '%s\n' "$$V" >$@.out
mv $@.out $@
@@ -872,11 +880,34 @@ $(MANTXTS): workman.sh
LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
mv $@.out $@
+# Set file timestamps deterministically if possible,
+# so that tarballs containing the timestamps are reproducible.
+#
+# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
+# file DEST to the maximum of the timestamps of the files A B C ...,
+# plus N if GNU ls and touch are available.
+SET_TIMESTAMP_N = sh -c '\
+ n=$$0 dest=$$1; shift; \
+ touch -cmr `ls -t "$$@" | sed 1q` "$$dest" && \
+ if test $$n != 0 && \
+ lsout=`ls -n --time-style="+%s" "$$dest" 2>/dev/null`; then \
+ set x $$lsout && \
+ touch -cmd @`expr $$7 + $$n` "$$dest"; \
+ else :; fi'
+# If DEST depends on A B C ... in this Makefile, callers should use
+# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
+# downstream 'make' that considers equal timestamps to be out of date.
+# POSIX allows this 'make' behavior, and HP-UX 'make' does it.
+# If all that matters is that the timestamp be reproducible
+# and plausible, use $(SET_TIMESTAMP).
+SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
+SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1
+
# Set the timestamps to those of the git repository, if available,
# and if the files have not changed since then.
-# This uses GNU 'touch' syntax 'touch -d at N FILE',
-# where N is the number of seconds since 1970.
-# If git or GNU 'touch' is absent, don't bother to sync with git timestamps.
+# This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
+# and GNU 'touch -d at N FILE', where N is the number of seconds since 1970.
+# If git or GNU is absent, don't bother to sync with git timestamps.
# Also, set the timestamp of each prebuilt file like 'leapseconds'
# to be the maximum of the files it depends on.
set-timestamps.out: $(EIGHT_YARDS)
@@ -894,16 +925,16 @@ set-timestamps.out: $(EIGHT_YARDS)
fi || exit; \
done; \
fi
- touch -cmr `ls -t $(LEAP_DEPS) | sed 1q` leapseconds
+ $(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
- touch -cmr `ls -t $$file workman.sh | sed 1q` $$file.txt || \
+ $(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \
exit; \
done
- touch -cmr `ls -t $(TZDATA_ZI_DEPS) | sed 1q` tzdata.zi
- touch -cmr `ls -t $(VERSION_DEPS) | sed 1q` version
+ $(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
+ $(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
touch $@
set-tzs-timestamp.out: $(TZS)
- touch -cmr `ls -t $(TZS_DEPS) | sed 1q` $(TZS)
+ $(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
touch $@
# The zics below ensure that each data file can stand on its own.
@@ -981,7 +1012,7 @@ tarballs rearguard_tarballs traditional_tarballs \
signatures rearguard_signatures traditional_signatures: \
version set-timestamps.out rearguard.zi
VERSION=`cat version` && \
- $(MAKE) VERSION="$$VERSION" $@_version
+ $(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version
# These *_version rules are intended for use if VERSION is set by some
# other means. Ordinarily these rules are used only by the above
@@ -1018,7 +1049,7 @@ tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
for f in $(TDATA) $(PACKRATDATA); do \
rearf=tzdata$(VERSION)-rearguard.dir/$$f; \
$(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
- touch -cmr `ls -t ziguard.awk $$f` $$rearf || exit; \
+ $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
done
sed '1s/$$/-rearguard/' \
<version >tzdata$(VERSION)-rearguard.dir/version
@@ -1037,7 +1068,7 @@ tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
rm -fr tzdb-$(VERSION)
mkdir tzdb-$(VERSION)
ln $(ENCHILADA) tzdb-$(VERSION)
- touch -cmr `ls -t tzdb-$(VERSION)/* | sed 1q` tzdb-$(VERSION)
+ $(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
LC_ALL=C && export LC_ALL && \
tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
mv $@.out $@
@@ -1079,8 +1110,6 @@ strftime.o: private.h tzfile.h
zdump.o: version.h
zic.o: private.h tzfile.h version.h
-.KEEP_STATE:
-
.PHONY: ALL INSTALL all
.PHONY: check check_time_t_alternatives
.PHONY: check_web check_zishrink
diff --git a/contrib/tzdata/NEWS b/contrib/tzdata/NEWS
index 328face24016..6014b45a0b4a 100644
--- a/contrib/tzdata/NEWS
+++ b/contrib/tzdata/NEWS
@@ -1,5 +1,51 @@
News for the tz database
+Release 2020e - 2020-12-22 15:14:34 -0800
+
+ Briefly:
+ Volgograd switches to Moscow time on 2020-12-27 at 02:00.
+
+ Changes to future timestamps
+
+ Volgograd changes time zone from +04 to +03 on 2020-12-27 at 02:00.
+ (Thanks to Alexander Krivenyshev and Stepan Golosunov.)
+
+ Changes to past timestamps
+
+ Correct many pre-1986 transitions, fixing entries originally
+ derived from Shanks. The fixes include:
+ - Australia: several 1917 through 1971 transitions
+ - Bahamas: several 1941 through 1945 transitions
+ - Bermuda: several 1917 through 1956 transitions
+ - Belize: several 1942 through 1968 transitions
+ - Ghana: several 1915 through 1956 transitions
+ - Israel and Palestine: several 1940 through 1985 transitions
+ - Kenya and adjacent: several 1908 through 1960 transitions
+ - Nigeria and adjacent: correcting LMT in Lagos, and several 1905
+ through 1919 transitions
+ - Seychelles: the introduction of standard time in 1907, not 1906
+ - Vanuatu: DST in 1973-1974, and a corrected 1984 transition
+ (Thanks to P Chan.)
+
+ Because of the Australia change, Australia/Currie (King Island) is
+ no longer needed, as it is identical to Australia/Hobart for all
+ timestamps since 1970 and was therefore created by mistake.
+ Australia/Currie has been moved to the 'backward' file and its
+ corrected data moved to the 'backzone' file.
+
+ Changes to past time zone abbreviations and DST flags
+
+ To better match legislation in Turks and Caicos, the 2015 shift to
+ year-round observance of -04 is now modeled as AST throughout before
+ returning to Eastern Time with US DST in 2018, rather than as
+ maintaining EDT until 2015-11-01. (Thanks to P Chan.)
+
+ Changes to documentation
+
+ The zic man page now documents zic's coalescing of transitions
+ when a zone falls back just before DST springs forward.
+
+
Release 2020d - 2020-10-21 11:24:13 -0700
Briefly:
diff --git a/contrib/tzdata/africa b/contrib/tzdata/africa
index 566436b319e4..59cf501ec954 100644
--- a/contrib/tzdata/africa
+++ b/contrib/tzdata/africa
@@ -386,36 +386,87 @@ Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
# Ghana
-# From Paul Eggert (2018-01-30):
-# Whitman says DST was observed from 1931 to "the present";
-# Shanks & Pottenger say 1936 to 1942 with 20 minutes of DST,
-# with transitions on 09-01 and 12-31 at 00:00.
-# Page 33 of Parish GCB, Colonial Reports - Annual. No. 1066. Gold
-# Coast. Report for 1919. (March 1921), OCLC 784024077
-# http://libsysdigi.library.illinois.edu/ilharvest/africana/books2011-05/5530214/5530214_1919/5530214_1919_opt.pdf
-# lists the Determination of the Time Ordinance, 1919, No. 18,
-# "to advance the time observed locally by the space of twenty minutes
-# during the last four months of each year; the object in view being
-# to extend during those months the period of daylight-time available
-# for evening recreation after office hours."
-# Vanessa Ogle, The Global Transformation of Time, 1870-1950 (2015), p 33,
-# writes "In 1919, the Gold Coast (Ghana as of 1957) made Greenwich
-# time its legal time and simultaneously legalized a summer time of
-# UTC - 00:20 minutes from March to October."; a footnote lists
-# the ordinance as being dated 1919-11-24.
-# The Crown Colonist, Volume 12 (1942), p 176, says "the Government
-# intend advancing Gold Coast time half an hour ahead of G.M.T.
-# The actual date of the alteration has not yet been announced."
-# These sources are incomplete and contradictory. Possibly what is
-# now Ghana observed different DST regimes in different years. For
-# lack of better info, use Shanks except treat the minus sign as a
-# typo, and assume DST started in 1920 not 1936.
+# From P Chan (2020-11-20):
+# Interpretation Amendment Ordinance, 1915 (No.24 of 1915) [1915-11-02]
+# Ordinances of the Gold Coast, Ashanti, Northern Territories 1915, p 69-71
+# https://books.google.com/books?id=ErA-AQAAIAAJ&pg=PA70
+# This Ordinance added "'Time' shall mean Greenwich Mean Time" to the
+# Interpretation Ordinance, 1876.
+#
+# Determination of the Time Ordinance, 1919 (No. 18 of 1919) [1919-11-24]
+# Ordinances of the Gold Coast, Ashanti, Northern Territories 1919, p 75-76
+# https://books.google.com/books?id=MbA-AQAAIAAJ&pg=PA75
+# This Ordinance removed the previous definition of time and introduced DST.
+#
+# Time Determination Ordinance (Cap. 214)
+# The Laws of the Gold Coast (including Togoland Under British Mandate)
+# Vol. II (1937), p 2328
+# https://books.google.com/books?id=Z7M-AQAAIAAJ&pg=PA2328
+# Revised edition of the 1919 Ordinance.
+#
+# Time Determination (Amendment) Ordinance, 1940 (No. 9 of 1940) [1940-04-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1940, p 22
+# https://books.google.com/books?id=1ao-AQAAIAAJ&pg=PA22
+# This Ordinance changed the forward transition from September to May.
+#
+# Defence (Time Determination Ordinance Amendment) Regulations, 1942
+# (Regulations No. 6 of 1942) [1942-01-31, commenced on 1942-02-08]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1942, p 48
+# https://books.google.com/books?id=Das-AQAAIAAJ&pg=PA48
+# These regulations advanced the [standard] time by thirty minutes.
+#
+# Defence (Time Determination Ordinance Amendment (No.2)) Regulations,
+# 1942 (Regulations No. 28 of 1942) [1942-04-25]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1942, p 87
+# https://books.google.com/books?id=Das-AQAAIAAJ&pg=PA87
+# These regulations abolished DST and changed the time to GMT+0:30.
+#
+# Defence (Revocation) (No.4) Regulations, 1945 (Regulations No. 45 of
+# 1945) [1945-10-24, commenced on 1946-01-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1945, p 256
+# https://books.google.com/books?id=9as-AQAAIAAJ&pg=PA256
+# These regulations revoked the previous two sets of Regulations.
+#
+# Time Determination (Amendment) Ordinance, 1945 (No. 18 of 1945) [1946-01-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1945, p 69
+# https://books.google.com/books?id=9as-AQAAIAAJ&pg=PA69
+# This Ordinance abolished DST.
+#
+# Time Determination (Amendment) Ordinance, 1950 (No. 26 of 1950) [1950-07-22]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1950, p 35
+# https://books.google.com/books?id=e60-AQAAIAAJ&pg=PA35
+# This Ordinance restored DST but with thirty minutes offset.
+#
+# Time Determination Ordinance (Cap. 264)
+# The Laws of the Gold Coast, Vol. V (1954), p 380
+# https://books.google.com/books?id=Mqc-AQAAIAAJ&pg=PA380
+# Revised edition of the Time Determination Ordinance.
+#
+# Time Determination (Amendment) Ordinance, 1956 (No. 21 of 1956) [1956-08-29]
+# Annual Volume of the Ordinances of the Gold Coast Enacted During the
+# Year 1956, p 83
+# https://books.google.com/books?id=VLE-AQAAIAAJ&pg=PA83
+# This Ordinance abolished DST.
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Ghana 1920 1942 - Sep 1 0:00 0:20 -
-Rule Ghana 1920 1942 - Dec 31 0:00 0 -
+Rule Ghana 1919 only - Nov 24 0:00 0:20 +0020
+Rule Ghana 1920 1942 - Jan 1 2:00 0 GMT
+Rule Ghana 1920 1939 - Sep 1 2:00 0:20 +0020
+Rule Ghana 1940 1941 - May 1 2:00 0:20 +0020
+Rule Ghana 1950 1955 - Sep 1 2:00 0:30 +0030
+Rule Ghana 1951 1956 - Jan 1 2:00 0 GMT
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Africa/Accra -0:00:52 - LMT 1918
- 0:00 Ghana GMT/+0020
+Zone Africa/Accra -0:00:52 - LMT 1915 Nov 2
+ 0:00 Ghana %s 1942 Feb 8
+ 0:30 - +0030 1946 Jan 6
+ 0:00 Ghana %s
# Guinea
# See Africa/Abidjan.
@@ -433,11 +484,54 @@ Zone Africa/Bissau -1:02:20 - LMT 1912 Jan 1 1:00u
0:00 - GMT
# Kenya
+
+# From P Chan (2020-10-24):
+#
+# The standard time of GMT+2:30 was adopted in the East Africa Protectorate....
+# [The Official Gazette, 1908-05-01, p 274]
+# https://books.google.com/books?id=e-cAC-sjPSEC&pg=PA274
+#
+# At midnight on 30 June 1928 the clocks throughout Kenya was put forward
+# half an hour by the Alteration of Time Ordinance, 1928.
+# https://gazettes.africa/archive/ke/1928/ke-government-gazette-dated-1928-05-11-no-28.pdf
+# [Ordinance No. 11 of 1928, The Offical Gazette, 1928-06-26, p 813]
+# https://books.google.com/books?id=2S0S6os32ZUC&pg=PA813
+#
+# The 1928 ordinance was repealed by the Alteration of Time (repeal) Ordinance,
+# 1929 and the time was restored to GMT+2:30 at midnight on 4 January 1930.
+# [Ordinance No. 97 of 1929, The Official Gazette, 1929-12-31, p 2701]
+# https://books.google.com/books?id=_g18jIZQlwwC&pg=PA2701
+#
+# The Alteration of Time Ordinance, 1936 changed the time to GMT+2:45
+# and repealed the previous ordinance at midnight on 31 December 1936.
+# [The Official Gazette, 1936-07-21, p 705]
+# https://books.google.com/books?id=K7j41z0aC5wC&pg=PA705
+#
+# The Defence (Amendment of Laws No. 120) Regulations changed the time
+# to GMT+3 at midnight on 31 July 1942.
+# [Kenya Official Gazette Supplement No. 32, 1942-07-21, p 331]
+# https://books.google.com/books?hl=zh-TW&id=c_E-AQAAIAAJ&pg=PA331
+# The provision of the 1936 ordinance was not repealed and was later
+# incorporated in the Interpretation and General Clauses Ordinance in 1948.
+# Although it was overridden by the 1942 regulations.
+# [The Laws of Kenya in force on 1948-09-21, Title I, Chapter 1, 31]
+# https://dds.crl.edu/item/217517 (p.101)
+# In 1950 the Interpretation and General Clauses Ordinance was amended to adopt
+# GMT+3 permanently as the 1942 regulations were due to expire on 10 December.
+# https://books.google.com/books?id=jvR8mUDAwR0C&pg=PA787
+# [Ordinance No. 44 of 1950, Kenya Ordinances 1950, Vol. XXIX, p 294]
+# https://books.google.com/books?id=-_dQAQAAMAAJ&pg=PA294
+
+# From Paul Eggert (2020-10-24):
+# The 1908-05-01 announcement does not give an effective date,
+# so just say "1908 May".
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul
- 3:00 - EAT 1930
- 2:30 - +0230 1940
- 2:45 - +0245 1960
+Zone Africa/Nairobi 2:27:16 - LMT 1908 May
+ 2:30 - +0230 1928 Jun 30 24:00
+ 3:00 - EAT 1930 Jan 4 24:00
+ 2:30 - +0230 1936 Dec 31 24:00
+ 2:45 - +0245 1942 Jul 31 24:00
3:00 - EAT
Link Africa/Nairobi Africa/Addis_Ababa # Ethiopia
Link Africa/Nairobi Africa/Asmara # Eritrea
@@ -1224,8 +1318,69 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
# See Africa/Lagos.
# Nigeria
+
+# From P Chan (2020-12-03):
+# GMT was adopted as the standard time of Lagos on 1905-07-01.
+# Lagos Weekly Record, 1905-06-24, p 3
+# http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446%2C5221%2C1931%2C1235
+# says "It is officially notified that on and after the 1st of July 1905
+# Greenwich Mean Solar Time will be adopted thought the Colony and
+# Protectorate, and that it will be necessary to put all clocks 13 minutes and
+# 35 seconds back, recording local mean time."
+#
+# It seemed that Lagos returned to LMT on 1908-07-01.
+# [The Lagos Standard], 1908-07-01, p 5
+# http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92%2C3590%2C3944%2C2523
+# says "Scarcely have the people become accustomed to this new time, when
+# another official notice has now appeared announcing that from and after the
+# 1st July next, return will be made to local mean time."
+#
+# From P Chan (2020-11-27):
+# On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria.
+# Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916),
+# p 27
+# https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
+# "On January 1st [1914], a universal standard time for Nigeria was adopted,
+# viz., half an hour fast on Greenwich mean time, corresponding to the meridian
+# 7 [degrees] 30' E. long."
+# Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
+# was the local mean time. On 1st January, 1914, standard time for the whole of
+# Nigeria was introduced ... Lagos time has been advanced about 16 minutes
+# accordingly."
+#
+# In 1919, standard time was changed to GMT+1.
+# Interpretation Ordinance (Cap 2)
+# The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the
+# 1st Day of January, 1923, Vol.I [p 16]
+# https://books.google.com/books?id=BOMrAQAAMAAJ&pg=PA16
+# "The expression 'Standard time' means standard time as used in Nigeria:
+# namely, 60 minutes in advance of Greenwich mean time. (As amended by 18 of
+# 1919, s. 2.)"
+# From Tim Parenti (2020-12-10):
+# The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
+# reading of this Bill by the Legislative Council of the Colony of Nigeria on
+# Thursday 1919-08-28:
+# http://ddsnext.crl.edu/titles/31558?terms&item_id=303484#?m=1118&c=1&s=0&cv=2&r=0&xywh=1261%2C3408%2C2994%2C1915
+# "The proposal is that the Globe should be divided into twelve zones East and
+# West of Greenwich, of one hour each, Nigeria falling into the zone with a
+# standard of one hour fast on Greenwich Mean Time. Nigeria standard time is
+# now 30 minutes in advance of Greenwich Mean Time ... according to the new
+# proposal, standard time will be advanced another 30 minutes". It was further
+# proposed that the firing of the time guns likewise be adjusted by 30 minutes
+# to compensate.
+# From Tim Parenti (2020-12-10), per P Chan (2020-12-11):
+# The text of Ordinance 18 of 1919, published in Nigeria Gazette, Vol 6, No 52,
+# shows that the change was assented to the following day and took effect "on
+# the 1st day of September, 1919."
+# Nigeria Gazette and Supplements 1919 Jan-Dec, Reference: 73266B-40,
+# img 245-246
+# https://microform.digital/boa/collections/77/volumes/539/nigeria-lagos-1887-1919
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Africa/Lagos 0:13:36 - LMT 1919 Sep
+Zone Africa/Lagos 0:13:35 - LMT 1905 Jul 1
+ 0:00 - GMT 1908 Jul 1
+ 0:13:35 - LMT 1914 Jan 1
+ 0:30 - +0030 1919 Sep 1
1:00 - WAT
Link Africa/Lagos Africa/Bangui # Central African Republic
Link Africa/Lagos Africa/Brazzaville # Rep. of the Congo
@@ -1298,8 +1453,21 @@ Zone Africa/Sao_Tome 0:26:56 - LMT 1884
# See Africa/Abidjan.
# Seychelles
+
+# From P Chan (2020-11-27):
+# Standard Time was adopted on 1907-01-01.
+#
+# Standard Time Ordinance (Chapter 237)
+# The Laws of Seychelles in Force on the 31st December, 1971, Vol. 6, p 571
+# https://books.google.com/books?id=efE-AQAAIAAJ&pg=PA571
+#
+# From Tim Parenti (2020-12-05):
+# A footnote on https://books.google.com/books?id=DYdDAQAAMAAJ&pg=PA1689
+# confirms that Ordinance No. 9 of 1906 "was brought into force on the 1st
+# January, 1907."
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria
+Zone Indian/Mahe 3:41:48 - LMT 1907 Jan 1 # Victoria
4:00 - +04
# From Paul Eggert (2001-05-30):
# Aldabra, Farquhar, and Desroches, originally dependencies of the
diff --git a/contrib/tzdata/asia b/contrib/tzdata/asia
index 3ebfcb409fce..ed944130e99f 100644
--- a/contrib/tzdata/asia
+++ b/contrib/tzdata/asia
@@ -1723,40 +1723,180 @@ Zone Asia/Baghdad 2:57:40 - LMT 1890
# high on my favorite-country list (and not only because my wife's
# family is from India).
-# From Shanks & Pottenger:
+# From P Chan (2020-10-27), with corrections:
+#
+# 1940-1946 Supplement No. 2 to the Palestine Gazette
+# # issue page Order No. dated start end note
+# 1 1010 729 67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
+# 2 1013 758 73 of 1940 1940-05-31 1940-05-31 1940-09-30
+# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16 1940-12-31
+# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31 1941-12-31
+# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31 1942-12-31* amended by #6
+# 6 1228 1608 86 of 1942 1942-10-14 1941-12-31 1942-10-31
+# 7 1256 279 21 of 1943 1943-03-18 1943-03-31 1943-10-31
+# 8 1323 249 19 of 1944 1944-03-13 1944-03-31 1944-10-31
+# 9 1402 328 20 of 1945 1945-04-05 1945-04-15 1945-10-31
+#10 1487 596 14 of 1946 1946-04-04 1946-04-15 1946-10-31
+#
+# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
+# # issue page dated start end
+#11 2 7 1948-05-20 1948-05-22 1948-10-31*
+# ^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
+#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
+#
+# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
+# # issue page dated start end note
+#13 6 133 1949-03-23 1949-04-30 1949-10-31
+#14 80 755 1950-03-17 1950-04-15 1950-09-14
+#15 164 782 1951-03-22 1951-03-31 1951-09-29* amended by #16
+#16 206 1940 1951-09-23 ---------- 1951-10-22* amended by #17
+#17 212 78 1951-10-19 ---------- 1951-11-10
+#18 254 652 1952-03-03 1952-04-19 1952-09-27* amended by #19
+#19 300 11 1952-09-15 ---------- 1952-10-18
+#20 348 817 1953-03-03 1953-04-11 1953-09-12
+#21 420 385 1954-02-17 1954-06-12 1954-09-11
+#22 497 548 1955-01-14 1955-06-11 1955-09-10
+#23 591 608 1956-03-12 1956-06-02 1956-09-29
+#24 680 957 1957-02-08 1957-04-27 1957-09-21
+#25 3192 1418 1974-06-28 1974-07-06 1974-10-12
+#26 3322 1389 1975-04-03 1975-04-19 1975-08-30
+#27 4146 2089 1980-07-15 1980-08-02 1980-09-13
+#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
+#29 4619 1312 1984-04-06 1984-05-05 1984-08-25
+#30 4744 475 1984-12-23 1985-04-13 1985-09-14* amended by #31
+#31 4851 1848 1985-08-18 ---------- 1985-08-31
+#32 4932 899 1986-04-22 1986-05-17 1986-09-06
+#33 5013 580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
+#34 5021 744 1987-03-30 1987-04-14 1987-09-12
+#35 5096 659 1988-02-14 1988-04-09 1988-09-03
+#36 5167 514 1989-02-03 1989-04-29 1989-09-02
+#37 5248 375 1990-01-23 1990-03-24 1990-08-25
+#38 5335 612 1991-02-10 1991-03-09* 1991-08-31 amended by #39
+# 1992-03-28 1992-09-05
+#39 5339 709 1991-03-04 1991-03-23 ----------
+#40 5506 503 1993-02-18 1993-04-02 1993-09-05
+# 1994-04-01 1994-08-28
+# 1995-03-31 1995-09-03
+#41 5731 438 1996-01-01 1996-03-14 1996-09-15
+# 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
+# 1998-03-19* 1998-09-17* revoked by #42
+#42 5853 1243 1997-09-18 1998-03-19 1998-09-05
+#43 5937 77 1998-10-18 1999-04-02 1999-09-03
+# 2000-04-14* 2000-09-15* revoked by #44
+# 2001-04-13* 2001-09-14* revoked by #44
+#44 6024 39 2000-03-14 2000-04-14 2000-10-22* overridden by 2000 Temp Prov
+# 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
+# 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
+#
+# These are laws enacted by the Knesset since the Minister could only alter the
+# transition dates at least six months in advanced under the 1992 Law.
+# dated start end
+# 1997 Temporary Provisions 1997-03-06 1997-03-20 1997-09-13
+# 2000 Temporary Provisions 2000-07-28 ---------- 2000-10-06
+# 2001-04-09 2001-09-24
+# 2002-03-29 2002-10-07
+# 2003-03-28 2003-10-03
+# 2004-04-07 2004-09-22
+# Note:
+# Transition times in 1940-1957 (#1-#24) were midnight GMT,
+# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
+# in 1999-April 2000 (#43,#44) were 02:00,
+# in the 2000 Temporary Provisions were 01:00.
+#
+# -----------------------------------------------------------------------------
+# Links:
+# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
+# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
+# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
+# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
+# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
+# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
+# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
+# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
+# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
+#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
+#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
+#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
+#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
+#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
+#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
+#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
+#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
+#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
+#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
+#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
+#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
+#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
+#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
+#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
+#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
+#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
+#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
+#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
+#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
+#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
+#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
+#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
+#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
+#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
+#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
+#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
+#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
+#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
+#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
+#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
+#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
+#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
+#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
+#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
+#
+# Time Determination (Temporary Provisions) Law, 1997
+# https://www.nevo.co.il/law_html/law19/p201_003.htm
+#
+# Time Determination (Temporary Provisions) Law, 2000
+# https://www.nevo.co.il/law_html/law19/p201_004.htm
+#
+# Time Determination Law, 1992 and amendments
+# https://www.nevo.co.il/law_html/law01/p201_002.htm
+# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
+
+# From Paul Eggert (2020-10-27):
+# Several of the midnight transitions mentioned above are ambiguous;
+# are they 00:00, 00:00s, 24:00, or 24:00s? When resolving these ambiguities,
+# try to minimize changes from previous tzdb versions, for lack of better info.
+# Commentary from previous versions is included below, to help explain this.
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Zion 1940 only - Jun 1 0:00 1:00 D
-Rule Zion 1942 1944 - Nov 1 0:00 0 S
-Rule Zion 1943 only - Apr 1 2:00 1:00 D
-Rule Zion 1944 only - Apr 1 0:00 1:00 D
-Rule Zion 1945 only - Apr 16 0:00 1:00 D
-Rule Zion 1945 only - Nov 1 2:00 0 S
-Rule Zion 1946 only - Apr 16 2:00 1:00 D
-Rule Zion 1946 only - Nov 1 0:00 0 S
-Rule Zion 1948 only - May 23 0:00 2:00 DD
-Rule Zion 1948 only - Sep 1 0:00 1:00 D
-Rule Zion 1948 1949 - Nov 1 2:00 0 S
-Rule Zion 1949 only - May 1 0:00 1:00 D
-Rule Zion 1950 only - Apr 16 0:00 1:00 D
-Rule Zion 1950 only - Sep 15 3:00 0 S
-Rule Zion 1951 only - Apr 1 0:00 1:00 D
-Rule Zion 1951 only - Nov 11 3:00 0 S
-Rule Zion 1952 only - Apr 20 2:00 1:00 D
-Rule Zion 1952 only - Oct 19 3:00 0 S
-Rule Zion 1953 only - Apr 12 2:00 1:00 D
-Rule Zion 1953 only - Sep 13 3:00 0 S
-Rule Zion 1954 only - Jun 13 0:00 1:00 D
-Rule Zion 1954 only - Sep 12 0:00 0 S
-Rule Zion 1955 only - Jun 11 2:00 1:00 D
-Rule Zion 1955 only - Sep 11 0:00 0 S
-Rule Zion 1956 only - Jun 3 0:00 1:00 D
-Rule Zion 1956 only - Sep 30 3:00 0 S
-Rule Zion 1957 only - Apr 29 2:00 1:00 D
-Rule Zion 1957 only - Sep 22 0:00 0 S
-Rule Zion 1974 only - Jul 7 0:00 1:00 D
-Rule Zion 1974 only - Oct 13 0:00 0 S
-Rule Zion 1975 only - Apr 20 0:00 1:00 D
-Rule Zion 1975 only - Aug 31 0:00 0 S
+Rule Zion 1940 only - May 31 24:00u 1:00 D
+Rule Zion 1940 only - Sep 30 24:00u 0 S
+Rule Zion 1940 only - Nov 16 24:00u 1:00 D
+Rule Zion 1942 1946 - Oct 31 24:00u 0 S
+Rule Zion 1943 1944 - Mar 31 24:00u 1:00 D
+Rule Zion 1945 1946 - Apr 15 24:00u 1:00 D
+Rule Zion 1948 only - May 22 24:00u 2:00 DD
+Rule Zion 1948 only - Aug 31 24:00u 1:00 D
+Rule Zion 1948 1949 - Oct 31 24:00u 0 S
+Rule Zion 1949 only - Apr 30 24:00u 1:00 D
+Rule Zion 1950 only - Apr 15 24:00u 1:00 D
+Rule Zion 1950 only - Sep 14 24:00u 0 S
+Rule Zion 1951 only - Mar 31 24:00u 1:00 D
+Rule Zion 1951 only - Nov 10 24:00u 0 S
+Rule Zion 1952 only - Apr 19 24:00u 1:00 D
+Rule Zion 1952 only - Oct 18 24:00u 0 S
+Rule Zion 1953 only - Apr 11 24:00u 1:00 D
+Rule Zion 1953 only - Sep 12 24:00u 0 S
+Rule Zion 1954 only - Jun 12 24:00u 1:00 D
+Rule Zion 1954 only - Sep 11 24:00u 0 S
+Rule Zion 1955 only - Jun 11 24:00u 1:00 D
+Rule Zion 1955 only - Sep 10 24:00u 0 S
+Rule Zion 1956 only - Jun 2 24:00u 1:00 D
+Rule Zion 1956 only - Sep 29 24:00u 0 S
+Rule Zion 1957 only - Apr 27 24:00u 1:00 D
+Rule Zion 1957 only - Sep 21 24:00u 0 S
+Rule Zion 1974 only - Jul 6 24:00 1:00 D
+Rule Zion 1974 only - Oct 12 24:00 0 S
+Rule Zion 1975 only - Apr 19 24:00 1:00 D
+Rule Zion 1975 only - Aug 30 24:00 0 S
# From Alois Treindl (2019-03-06):
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
@@ -1769,25 +1909,24 @@ Rule Zion 1975 only - Aug 31 0:00 0 S
# From Paul Eggert (2019-03-06):
# Also see this thread about the moin.gov.il URL:
# https://mm.icann.org/pipermail/tz/2018-November/027194.html
-Rule Zion 1980 only - Aug 2 0:00 1:00 D
-Rule Zion 1980 only - Sep 13 1:00 0 S
-Rule Zion 1984 only - May 5 0:00 1:00 D
-Rule Zion 1984 only - Aug 25 1:00 0 S
-
-# From Shanks & Pottenger:
-Rule Zion 1985 only - Apr 14 0:00 1:00 D
-Rule Zion 1985 only - Sep 15 0:00 0 S
-Rule Zion 1986 only - May 18 0:00 1:00 D
-Rule Zion 1986 only - Sep 7 0:00 0 S
-Rule Zion 1987 only - Apr 15 0:00 1:00 D
-Rule Zion 1987 only - Sep 13 0:00 0 S
+Rule Zion 1980 only - Aug 2 24:00s 1:00 D
+Rule Zion 1980 only - Sep 13 24:00s 0 S
+Rule Zion 1984 only - May 5 24:00s 1:00 D
+Rule Zion 1984 only - Aug 25 24:00s 0 S
+
+Rule Zion 1985 only - Apr 13 24:00 1:00 D
+Rule Zion 1985 only - Aug 31 24:00 0 S
+Rule Zion 1986 only - May 17 24:00 1:00 D
+Rule Zion 1986 only - Sep 6 24:00 0 S
+Rule Zion 1987 only - Apr 14 24:00 1:00 D
+Rule Zion 1987 only - Sep 12 24:00 0 S
# From Avigdor Finkelstein (2014-03-05):
# I check the Parliament (Knesset) records and there it's stated that the
# [1988] transition should take place on Saturday night, when the Sabbath
# ends and changes to Sunday.
-Rule Zion 1988 only - Apr 10 0:00 1:00 D
-Rule Zion 1988 only - Sep 4 0:00 0 S
+Rule Zion 1988 only - Apr 9 24:00 1:00 D
+Rule Zion 1988 only - Sep 3 24:00 0 S
# From Ephraim Silverberg
# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
@@ -1817,14 +1956,14 @@ Rule Zion 1988 only - Sep 4 0:00 0 S
# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Zion 1989 only - Apr 30 0:00 1:00 D
-Rule Zion 1989 only - Sep 3 0:00 0 S
-Rule Zion 1990 only - Mar 25 0:00 1:00 D
-Rule Zion 1990 only - Aug 26 0:00 0 S
-Rule Zion 1991 only - Mar 24 0:00 1:00 D
-Rule Zion 1991 only - Sep 1 0:00 0 S
-Rule Zion 1992 only - Mar 29 0:00 1:00 D
-Rule Zion 1992 only - Sep 6 0:00 0 S
+Rule Zion 1989 only - Apr 29 24:00 1:00 D
+Rule Zion 1989 only - Sep 2 24:00 0 S
+Rule Zion 1990 only - Mar 24 24:00 1:00 D
+Rule Zion 1990 only - Aug 25 24:00 0 S
+Rule Zion 1991 only - Mar 23 24:00 1:00 D
+Rule Zion 1991 only - Aug 31 24:00 0 S
+Rule Zion 1992 only - Mar 28 24:00 1:00 D
+Rule Zion 1992 only - Sep 5 24:00 0 S
Rule Zion 1993 only - Apr 2 0:00 1:00 D
Rule Zion 1993 only - Sep 5 0:00 0 S
@@ -1853,10 +1992,10 @@ Rule Zion 1995 only - Sep 3 0:00 0 S
# where YYYY is the relevant year.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Zion 1996 only - Mar 15 0:00 1:00 D
-Rule Zion 1996 only - Sep 16 0:00 0 S
-Rule Zion 1997 only - Mar 21 0:00 1:00 D
-Rule Zion 1997 only - Sep 14 0:00 0 S
+Rule Zion 1996 only - Mar 14 24:00 1:00 D
+Rule Zion 1996 only - Sep 15 24:00 0 S
+Rule Zion 1997 only - Mar 20 24:00 1:00 D
+Rule Zion 1997 only - Sep 13 24:00 0 S
Rule Zion 1998 only - Mar 20 0:00 1:00 D
Rule Zion 1998 only - Sep 6 0:00 0 S
Rule Zion 1999 only - Apr 2 2:00 1:00 D
@@ -1908,14 +2047,15 @@ Rule Zion 2010 only - Sep 12 2:00 0 S
Rule Zion 2011 only - Oct 2 2:00 0 S
Rule Zion 2012 only - Sep 23 2:00 0 S
-# From Ephraim Silverberg (2013-06-27):
-# On June 23, 2013, the Israeli government approved changes to the
-# Time Decree Law. The next day, the changes passed the First Reading
-# in the Knesset. The law is expected to pass the Second and Third
-# (final) Readings by the beginning of September 2013.
-#
-# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
-# in March. DST ends at 02:00 on the last Sunday of October.
+# From Ephraim Silverberg (2020-10-26):
+# The current time law (2013) from the State of Israel can be viewed
+# (in Hebrew) at:
+# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
+# It translates to:
+# Every year, in the period from the Friday before the last Sunday in
+# the month of March at 02:00 a.m. until the last Sunday of the month
+# of October at 02:00 a.m., Israel Time will be advanced an additional
+# hour such that it will be UTC+3.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D
diff --git a/contrib/tzdata/australasia b/contrib/tzdata/australasia
index aa7ab7f23a08..cf8a0638f831 100644
--- a/contrib/tzdata/australasia
+++ b/contrib/tzdata/australasia
@@ -14,16 +14,13 @@
# Please see the notes below for the controversy about "EST" versus "AEST" etc.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Aus 1917 only - Jan 1 0:01 1:00 D
-Rule Aus 1917 only - Mar 25 2:00 0 S
-Rule Aus 1942 only - Jan 1 2:00 1:00 D
-Rule Aus 1942 only - Mar 29 2:00 0 S
-Rule Aus 1942 only - Sep 27 2:00 1:00 D
-Rule Aus 1943 1944 - Mar lastSun 2:00 0 S
-Rule Aus 1943 only - Oct 3 2:00 1:00 D
-# Go with Whitman and the Australian National Standards Commission, which
-# says W Australia didn't use DST in 1943/1944. Ignore Whitman's claim that
-# 1944/1945 was just like 1943/1944.
+Rule Aus 1917 only - Jan 1 2:00s 1:00 D
+Rule Aus 1917 only - Mar lastSun 2:00s 0 S
+Rule Aus 1942 only - Jan 1 2:00s 1:00 D
+Rule Aus 1942 only - Mar lastSun 2:00s 0 S
+Rule Aus 1942 only - Sep 27 2:00s 1:00 D
+Rule Aus 1943 1944 - Mar lastSun 2:00s 0 S
+Rule Aus 1943 only - Oct 3 2:00s 1:00 D
# Zone NAME STDOFF RULES FORMAT [UNTIL]
# Northern Territory
@@ -115,8 +112,12 @@ Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb
# says King Island didn't observe DST from WWII until late 1971.
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
+Rule AT 1916 only - Oct Sun>=1 2:00s 1:00 D
+Rule AT 1917 only - Mar lastSun 2:00s 0 S
+Rule AT 1917 1918 - Oct Sun>=22 2:00s 1:00 D
+Rule AT 1918 1919 - Mar Sun>=1 2:00s 0 S
Rule AT 1967 only - Oct Sun>=1 2:00s 1:00 D
-Rule AT 1968 only - Mar lastSun 2:00s 0 S
+Rule AT 1968 only - Mar Sun>=29 2:00s 0 S
Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 D
Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 S
Rule AT 1972 only - Feb lastSun 2:00s 0 S
@@ -136,15 +137,9 @@ Rule AT 2007 only - Mar lastSun 2:00s 0 S
Rule AT 2008 max - Apr Sun>=1 2:00s 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Australia/Hobart 9:49:16 - LMT 1895 Sep
- 10:00 - AEST 1916 Oct 1 2:00
- 10:00 1:00 AEDT 1917 Feb
+ 10:00 AT AE%sT 1919 Oct 24
10:00 Aus AE%sT 1967
10:00 AT AE%sT
-Zone Australia/Currie 9:35:28 - LMT 1895 Sep
- 10:00 - AEST 1916 Oct 1 2:00
- 10:00 1:00 AEDT 1917 Feb
- 10:00 Aus AE%sT 1971 Jul
- 10:00 AT AE%sT
# Victoria
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
@@ -873,13 +868,36 @@ Zone Pacific/Wake 11:06:28 - LMT 1901
# Vanuatu
+
+# From P Chan (2020-11-27):
+# Joint Daylight Saving Regulation No 59 of 1973
+# New Hebrides Condominium Gazette No 336. December 1973
+# http://www.paclii.org/vu/other/VUNHGovGaz//1973/11.pdf#page=15
+#
+# Joint Daylight Saving (Repeal) Regulation No 10 of 1974
+# New Hebrides Condominium Gazette No 336. March 1974
+# http://www.paclii.org/vu/other/VUNHGovGaz//1974/3.pdf#page=11
+#
+# Summer Time Act No. 35 of 1982 [commenced 1983-09-01]
+# http://www.paclii.org/vu/other/VUGovGaz/1982/32.pdf#page=48
+#
+# Summer Time Act (Cap 157)
+# Laws of the Republic of Vanuatu Revised Edition 1988
+# http://www.paclii.org/cgi-bin/sinodisp/vu/legis/consol_act1988/sta147/sta147.html
+#
+# Summer Time (Amendment) Act No. 6 of 1991 [commenced 1991-11-11]
+# http://www.paclii.org/vu/legis/num_act/sta1991227/
+#
+# Summer Time (Repeal) Act No. 4 of 1993 [commenced 1993-05-03]
+# http://www.paclii.org/vu/other/VUGovGaz/1993/15.pdf#page=59
+
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
-Rule Vanuatu 1983 only - Sep 25 0:00 1:00 -
-Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 -
-Rule Vanuatu 1984 only - Oct 23 0:00 1:00 -
-Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 -
-Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 -
-Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 -
+Rule Vanuatu 1973 only - Dec 22 12:00u 1:00 -
+Rule Vanuatu 1974 only - Mar 30 12:00u 0 -
+Rule Vanuatu 1983 1991 - Sep Sat>=22 24:00 1:00 -
+Rule Vanuatu 1984 1991 - Mar Sat>=22 24:00 0 -
+Rule Vanuatu 1992 1993 - Jan Sat>=22 24:00 0 -
+Rule Vanuatu 1992 only - Oct Sat>=22 24:00 1:00 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
11:00 Vanuatu +11/+12
@@ -958,6 +976,25 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Electronic Journal of Australian and New Zealand History (1997-03-03)
# http://www.jcu.edu.au/aff/history/reviews/davison.htm
+# From P Chan (2020-11-20):
+# Daylight Saving Act 1916 (No. 40 of 1916) [1916-12-21, commenced 1917-01-01]
+# http://classic.austlii.edu.au/au/legis/cth/num_act/dsa1916401916192/
+#
+# Daylight Saving Repeal Act 1917 (No. 35 of 1917) [1917-09-25]
+# http://classic.austlii.edu.au/au/legis/cth/num_act/dsra1917351917243/
+#
+# Statutory Rules 1941, No. 323 [1941-12-24]
+# https://www.legislation.gov.au/Details/C1941L00323
+#
+# Statutory Rules 1942, No. 392 [1942-09-10]
+# https://www.legislation.gov.au/Details/C1942L00392
+#
+# Statutory Rules 1943, No. 241 [1943-09-29]
+# https://www.legislation.gov.au/Details/C1943L00241
+#
+# All transition times should be 02:00 standard time.
+
+
# From Paul Eggert (2005-12-08):
# Implementation Dates of Daylight Saving Time within Australia
# http://www.bom.gov.au/climate/averages/tables/dst_times.shtml
@@ -1350,6 +1387,27 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Tasmania
+# From P Chan (2020-11-20):
+# Tasmania observed DST in 1916-1919.
+#
+# Daylight Saving Act, 1916 (7 Geo V, No 2) [1916-09-22]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsa19167gvn2267/
+#
+# Daylight Saving Amendment Act, 1917 (8 Geo V, No 5) [1917-10-01]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsaa19178gvn5347/
+#
+# Daylight Saving Act Repeal Act, 1919 (10 Geo V, No 9) [1919-10-24]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsara191910gvn9339/
+#
+# King Island is mentioned in the 1967 Act but not the 1968 Act.
+# Therefore it possibly observed DST from 1968/69.
+#
+# Daylight Saving Act 1967 (No. 33 of 1967) [1967-09-22]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/dsa196733o1967211/
+#
+# Daylight Saving Act 1968 (No. 42 of 1968) [1968-10-15]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/dsa196842o1968211/
+
# The rules for 1967 through 1991 were reported by George Shepherd
# via Simon Woodhead via Robert Elz (1991-03-06):
# # The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]
diff --git a/contrib/tzdata/backward b/contrib/tzdata/backward
index e13ae527a9e8..0c55be221df1 100644
--- a/contrib/tzdata/backward
+++ b/contrib/tzdata/backward
@@ -49,6 +49,7 @@ Link Atlantic/Faroe Atlantic/Faeroe
Link Europe/Oslo Atlantic/Jan_Mayen
Link Australia/Sydney Australia/ACT
Link Australia/Sydney Australia/Canberra
+Link Australia/Hobart Australia/Currie
Link Australia/Lord_Howe Australia/LHI
Link Australia/Sydney Australia/NSW
Link Australia/Darwin Australia/North
diff --git a/contrib/tzdata/backzone b/contrib/tzdata/backzone
index 563aff606155..3ce7277314c0 100644
--- a/contrib/tzdata/backzone
+++ b/contrib/tzdata/backzone
@@ -623,6 +623,12 @@ Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown
-0:22:48 - JMT 1951 # Jamestown Mean Time
0:00 - GMT
+# King Island
+Zone Australia/Currie 9:35:28 - LMT 1895 Sep
+ 10:00 AT AE%sT 1919 Oct 24
+ 10:00 Aus AE%sT 1968 Oct 15
+ 10:00 AT AE%sT
+
# Northern Ireland
Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2
*** 468 LINES SKIPPED ***
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