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Mon, 20 Jan 2025 00:26:44 GMT (envelope-from git) Date: Mon, 20 Jan 2025 00:26:44 GMT Message-Id: <202501200026.50K0Qi4a018520@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Philip Paeps Subject: git: 2d6dcb4f97f8 - stable/13 - contrib/tzdata: import tzdata 2025a List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: philip X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 2d6dcb4f97f89376189f39b700459c72fe7a2678 Auto-Submitted: auto-generated The branch stable/13 has been updated by philip: URL: https://cgit.FreeBSD.org/src/commit/?id=2d6dcb4f97f89376189f39b700459c72fe7a2678 commit 2d6dcb4f97f89376189f39b700459c72fe7a2678 Author: Philip Paeps AuthorDate: 2025-01-17 01:33:46 +0000 Commit: Philip Paeps CommitDate: 2025-01-20 00:26:07 +0000 contrib/tzdata: import tzdata 2025a Changes: https://github.com/eggert/tz/blob/2025a/NEWS (cherry picked from commit 46226b0162ba03986b1de2c790804b37dd8e64d6) --- contrib/tzdata/Makefile | 32 +++++------ contrib/tzdata/NEWS | 84 +++++++++++++++++++++++++++-- contrib/tzdata/antarctica | 2 + contrib/tzdata/asia | 113 ++++++++++++++++++++++++++++----------- contrib/tzdata/australasia | 113 +++++++++++++++++++++------------------ contrib/tzdata/checknow.awk | 2 +- contrib/tzdata/checktab.awk | 39 +++++++++++++- contrib/tzdata/etcetera | 4 ++ contrib/tzdata/europe | 2 +- contrib/tzdata/factory | 10 ++++ contrib/tzdata/leap-seconds.list | 8 +-- contrib/tzdata/leapseconds | 8 +-- contrib/tzdata/northamerica | 9 ++-- contrib/tzdata/southamerica | 27 ++++++++-- contrib/tzdata/theory.html | 40 +++++++++----- contrib/tzdata/version | 2 +- contrib/tzdata/zone.tab | 2 +- contrib/tzdata/zone1970.tab | 6 +-- contrib/tzdata/zonenow.tab | 9 ++-- 19 files changed, 369 insertions(+), 143 deletions(-) diff --git a/contrib/tzdata/Makefile b/contrib/tzdata/Makefile index 0087b4596515..2130582c2deb 100644 --- a/contrib/tzdata/Makefile +++ b/contrib/tzdata/Makefile @@ -137,7 +137,7 @@ TIME_T_ALTERNATIVES_TAIL = int_least32_t.ck uint_least32_t.ck \ uint_least64_t.ck # What kind of TZif data files to generate. (TZif is the binary time -# zone data format that zic generates; see Internet RFC 8536.) +# zone data format that zic generates; see Internet RFC 9636.) # If you want only POSIX time, with time values interpreted as # seconds since the epoch (not counting leap seconds), use # REDO= posix_only @@ -255,6 +255,7 @@ LDLIBS= # -DHAVE_UNISTD_H=0 if does not work* # -DHAVE_UTMPX_H=0 if does not work* # -Dlocale_t=XXX if your system uses XXX instead of locale_t +# -DMKTIME_MIGHT_OVERFLOW if mktime might fail due to time_t overflow # -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+ # Typically it is better to use a later standard. For example, # with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'. @@ -262,7 +263,7 @@ LDLIBS= # feature (integers at least 64 bits wide) and maybe more. # -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers # with external linkage, e.g., applications cannot define 'localtime'. -# -Dssize_t=long on hosts like MS-Windows that lack ssize_t +# -Dssize_t=int on hosts like MS-Windows that lack ssize_t # -DSUPPORT_C89=0 if the tzcode library should not support C89 callers # Although -DSUPPORT_C89=0 might work around latent bugs in callers, # it does not conform to POSIX. @@ -285,7 +286,7 @@ LDLIBS= # This mishandles some past timestamps, as US DST rules have changed. # It also mishandles settings like TZ='EET-2EEST' for eastern Europe, # as Europe and US DST rules differ. -# -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255) +# -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 254) # -DUNINIT_TRAP if reading uninitialized storage can cause problems # other than simply getting garbage data # -DUSE_LTZ=0 to build zdump with the system time zone library @@ -319,7 +320,8 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 \ $(GCC_INSTRUMENT) \ -Wall -Wextra \ -Walloc-size-larger-than=100000 -Warray-bounds=2 \ - -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wdate-time \ + -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wcast-qual \ + -Wdate-time \ -Wdeclaration-after-statement -Wdouble-promotion \ -Wduplicated-branches -Wduplicated-cond -Wflex-array-member-not-at-end \ -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \ @@ -336,7 +338,7 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 \ -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \ -Wtrampolines -Wundef -Wunused-macros -Wuse-after-free=3 \ -Wvariadic-macros -Wvla -Wwrite-strings \ - -Wno-format-nonliteral -Wno-sign-compare + -Wno-format-nonliteral -Wno-sign-compare -Wno-type-limits # # If your system has a "GMT offset" field in its "struct tm"s # (or if you decide to add such a field in your system's "time.h" file), @@ -614,8 +616,8 @@ TZS_YEAR= 2050 TZS_CUTOFF_FLAG= -c $(TZS_YEAR) TZS= to$(TZS_YEAR).tzs TZS_NEW= to$(TZS_YEAR)new.tzs -TZS_DEPS= $(YDATA) asctime.c localtime.c \ - private.h tzfile.h zdump.c zic.c +TZS_DEPS= $(YDATA) localtime.c private.h \ + strftime.c tzfile.h zdump.c zic.c TZDATA_DIST = $(COMMON) $(DATA) $(MISC) # EIGHT_YARDS is just a yard short of the whole ENCHILADA. EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi @@ -855,10 +857,10 @@ tzselect: tzselect.ksh version chmod +x $@.out mv $@.out $@ -check: check_mild back.ck +check: check_mild back.ck now.ck check_mild: check_web check_zishrink \ character-set.ck white-space.ck links.ck mainguard.ck \ - name-lengths.ck now.ck slashed-abbrs.ck sorted.ck \ + name-lengths.ck slashed-abbrs.ck sorted.ck \ tables.ck ziguard.ck tzs.ck # True if UTF8_LOCALE does not work; @@ -1103,7 +1105,7 @@ set-timestamps.out: $(EIGHT_YARDS) touch -md @1 test.out; then \ rm -f test.out && \ for file in $$files; do \ - if git diff --quiet $$file; then \ + if git diff --quiet HEAD $$file; then \ time=$$(TZ=UTC0 git log -1 \ --format='tformat:%cd' \ --date='format:%Y-%m-%dT%H:%M:%SZ' \ @@ -1354,13 +1356,13 @@ long-long.ck unsigned.ck: $(VERSION_DEPS) zonenames: tzdata.zi @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi -asctime.o: private.h tzfile.h +asctime.o: private.h date.o: private.h difftime.o: private.h -localtime.o: private.h tzfile.h tzdir.h -strftime.o: private.h tzfile.h -zdump.o: version.h -zic.o: private.h tzfile.h tzdir.h version.h +localtime.o: private.h tzdir.h tzfile.h +strftime.o: localtime.c private.h tzdir.h tzfile.h +zdump.o: private.h version.h +zic.o: private.h tzdir.h tzfile.h version.h .PHONY: ALL INSTALL all .PHONY: check check_mild check_time_t_alternatives diff --git a/contrib/tzdata/NEWS b/contrib/tzdata/NEWS index 83b8b8c8d39c..a5d7ea89204e 100644 --- a/contrib/tzdata/NEWS +++ b/contrib/tzdata/NEWS @@ -1,5 +1,83 @@ News for the tz database +Release 2025a - 2025-01-15 10:47:24 -0800 + + Briefly: + Paraguay adopts permanent -03 starting spring 2024. + Improve pre-1991 data for the Philippines. + Etc/Unknown is now reserved. + + Changes to future timestamps + + Paraguay will stop changing its clocks after the spring-forward + transition on 2024-10-06, so it is now permanently at -03. + (Thanks to Heitor David Pinto and Even Scharning.) + This affects timestamps starting 2025-03-22, as well as the + obsolescent tm_isdst flags starting 2024-10-15. + + Changes to past timestamps + + Correct timestamps for the Philippines before 1900, and from 1937 + through 1990. (Thanks to P Chan for the heads-up and citations.) + This includes adjusting local mean time before 1899; fixing + transitions in September 1899, January 1937, and June 1954; adding + transitions in December 1941, November 1945, March and September + 1977, and May and July 1990; and removing incorrect transitions in + March and September 1978. + + Changes to data + + Add zone1970.tab lines for the Concordia and Eyre Bird Observatory + research stations. (Thanks to Derick Rethans and Jule Dabars.) + + Changes to code + + strftime %s now generates the correct numeric string even when the + represented number does not fit into time_t. This is better than + generating the numeric equivalent of (time_t) -1, as strftime did + in TZDB releases 96a (when %s was introduced) through 2020a and in + releases 2022b through 2024b. It is also better than failing and + returning 0, as strftime did in releases 2020b through 2022a. + + strftime now outputs an invalid conversion specifier as-is, + instead of eliding the leading '%', which confused debugging. + + An invalid TZ now generates the time zone abbreviation "-00", not + "UTC", to help the user see that an error has occurred. (Thanks + to Arthur David Olson for suggesting a "wrong result".) + + mktime and timeoff no longer incorrectly fail merely because a + struct tm component near INT_MIN or INT_MAX overflows when a + lower-order component carries into it. + + TZNAME_MAXIMUM, the maximum number of bytes in a proleptic TZ + string's time zone abbreviation, now defaults to 254 not 255. + This helps reduce the size of internal state from 25480 to 21384 + on common platforms. This change should not be a problem, as + nobody uses such long "abbreviations" and the longstanding tzcode + maximum was 16 until release 2023a. For those who prefer no + arbitrary limits, you can now specify TZNAME_MAXIMUM values up to + PTRDIFF_MAX, a limit forced by C anyway; formerly tzcode silently + misbehaved unless TZNAME_MAXIMUM was less than INT_MAX. + + tzset and related functions no longer leak a file descriptor if + another thread forks or execs at about the same time and if the + platform has O_CLOFORK and O_CLOEXEC respectively. Also, the + functions no longer let a TZif file become a controlling terminal. + + 'zdump -' now reads TZif data from /dev/stdin. + (From a question by Arthur David Olson.) + + Changes to documentation + + The name Etc/Unknown is now reserved: it will not be used by TZDB. + This is for compatibility with CLDR, which uses the string + "Etc/Unknown" for an unknown or invalid timezone. (Thanks to + Justin Grant, Mark Davis, and Guy Harris.) + + Cite Internet RFC 9636, which obsoletes RFC 8536 for TZif format. + + Release 2024b - 2024-09-04 12:27:47 -0700 Briefly: @@ -116,7 +194,7 @@ Release 2024b - 2024-09-04 12:27:47 -0700 Changes to commentary Commentary about historical transitions in Portugal and her former - colonies has been expanded with links to many relevant legislation. + colonies has been expanded with links to relevant legislation. (Thanks to Tim Parenti.) @@ -204,10 +282,10 @@ Release 2023d - 2023-12-21 20:02:24 -0800 changing its time zone from -01/+00 to -02/-01 at the same moment as the spring-forward transition. Its clocks will therefore not spring forward as previously scheduled. The time zone change - reverts to its common practice before 1981. + reverts to its common practice before 1981. (Thanks to Jule Dabars.) Fix predictions for DST transitions in Palestine in 2072-2075, - correcting a typo introduced in 2023a. + correcting a typo introduced in 2023a. (Thanks to Jule Dabars.) Changes to past and future timestamps diff --git a/contrib/tzdata/antarctica b/contrib/tzdata/antarctica index 8d5d6cd1cdd0..2e90a5e09d17 100644 --- a/contrib/tzdata/antarctica +++ b/contrib/tzdata/antarctica @@ -174,6 +174,8 @@ Zone Antarctica/Mawson 0 - -00 1954 Feb 13 # France & Italy - year-round base # Concordia, -750600+1232000, since 2005 +# https://en.wikipedia.org/wiki/Concordia_Station +# Can use Asia/Singapore, which it has agreed with since inception. # Germany - year-round base # Neumayer III, -704080-0081602, since 2009 diff --git a/contrib/tzdata/asia b/contrib/tzdata/asia index a2480b021225..d4eb058053ed 100644 --- a/contrib/tzdata/asia +++ b/contrib/tzdata/asia @@ -3665,21 +3665,70 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct # be immediately followed by 1845-01-01; see R.H. van Gent's # History of the International Date Line # https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm -# The rest of the data entries are from Shanks & Pottenger. - -# From Jesper Nørgaard Welen (2006-04-26): -# ... claims that Philippines had DST last time in 1990: -# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/ -# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires, -# but no details] - -# From Paul Eggert (2014-08-14): -# The following source says DST may be instituted November-January and again -# March-June, but this is not definite. It also says DST was last proclaimed -# during the Ramos administration (1992-1998); but again, no details. -# Carcamo D. PNoy urged to declare use of daylight saving time. -# Philippine Star 2014-08-05 -# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time + +# From P Chan (2021-05-10): +# Here's a fairly comprehensive article in Japanese: +# https://wiki.suikawiki.org/n/Philippine%20Time +# (2021-05-16): +# According to the references listed in the article, +# the periods that the Philippines (Manila) observed DST or used +9 are: +# +# 1936-10-31 24:00 to 1937-01-15 24:00 +# (Proclamation No. 104, Proclamation No. 126) +# 1941-12-15 24:00 to 1945-11-30 24:00 +# (Proclamation No. 789, Proclamation No. 20) +# 1954-04-11 24:00 to 1954-06-04 24:00 +# (Proclamation No. 13, Proclamation No. 33) +# 1977-03-27 24:00 to 1977-09-21 24:00 +# (Proclamation No. 1629, Proclamation No. 1641) +# 1990-05-21 00:00 to 1990-07-28 24:00 +# (National Emergency Memorandum Order No. 17, Executive Order No. 415) +# +# Proclamation No. 104 ... October 30, 1936 +# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/ +# Proclamation No. 126 ... January 15, 1937 +# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/ +# Proclamation No. 789 ... December 13, 1941 +# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/ +# Proclamation No. 20 ... November 11, 1945 +# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/ +# Proclamation No. 13 ... April 6, 1954 +# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/ +# Proclamation No. 33 ... June 3, 1954 +# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/ +# Proclamation No. 1629 ... March 25, 1977 +# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/ +# Proclamation No. 1641 ...May 26, 1977 +# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/ +# National Emergency Memorandum Order No. 17 ... May 2, 1990 +# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/ +# Executive Order No. 415 ... July 20, 1990 +# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/ +# +# During WWII, Proclamation No. 789 fixed two periods of DST. The first period +# was set to continue only until January 31, 1942. But Manila was occupied by +# the Japanese earlier in the month.... +# +# For the date of the adoption of standard time, Shank[s] gives 1899-05-11. +# The article is not able to state the basis of that. I guess it was based on +# a US War Department Circular issued on that date. +# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8 +# +# However, according to other sources, standard time was adopted on +# 1899-09-06. Also, the LMT was GMT+8:03:52 +# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521 +# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21 +# +# From Paul Eggert (2024-09-05): +# The penultimate URL in P Chan's email refers to page 521 of +# Selga M, The Time Service in the Philippines. +# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532. +# It says, "The change from the meridian 120° 58' 04" to the 120th implied a +# change of 3 min. 52s.26 in time; consequently on 6th September, 1899, +# Manila Observatory gave the noon signal 3 min. 52s.26 later than before". +# +# Wikipedia says the US declared Manila liberated on March 4, 1945; +# this doesn't affect clocks, just our time zone abbreviation and DST flag. # From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15): # In the Philippines, there is a national law, Republic Act No. 10535 @@ -3697,24 +3746,26 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct # 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 -Rule Phil 1954 only - Apr 12 0:00 1:00 D -Rule Phil 1954 only - Jul 1 0:00 0 S -Rule Phil 1978 only - Mar 22 0:00 1:00 D -Rule Phil 1978 only - Sep 21 0:00 0 S +Rule Phil 1936 only - Oct 31 24:00 1:00 D +Rule Phil 1937 only - Jan 15 24:00 0 S +Rule Phil 1941 only - Dec 15 24:00 1:00 D +# The following three rules were canceled by Japan: +#Rule Phil 1942 only - Jan 31 24:00 0 S +#Rule Phil 1942 only - Mar 1 0:00 1:00 D +#Rule Phil 1942 only - Jun 30 24:00 0 S +Rule Phil 1945 only - Nov 30 24:00 0 S +Rule Phil 1954 only - Apr 11 24:00 1:00 D +Rule Phil 1954 only - Jun 4 24:00 0 S +Rule Phil 1977 only - Mar 27 24:00 1:00 D +Rule Phil 1977 only - Sep 21 24:00 0 S +Rule Phil 1990 only - May 21 0:00 1:00 D +Rule Phil 1990 only - Jul 28 24:00 0 S # Zone NAME STDOFF RULES FORMAT [UNTIL] -Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 - 8:04:00 - LMT 1899 May 11 - 8:00 Phil P%sT 1942 May - 9:00 - JST 1944 Nov +Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31 + 8:03:52 - LMT 1899 Sep 6 4:00u + 8:00 Phil P%sT 1942 Feb 11 24:00 + 9:00 - JST 1945 Mar 4 8:00 Phil P%sT # Bahrain diff --git a/contrib/tzdata/australasia b/contrib/tzdata/australasia index 359f9c1f1e10..405944536cd3 100644 --- a/contrib/tzdata/australasia +++ b/contrib/tzdata/australasia @@ -1239,10 +1239,10 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila # The 1992 ending date used in the rules is a best guess; # it matches what was used in the past. -# The Australian Bureau of Meteorology FAQ -# http://www.bom.gov.au/faq/faqgen.htm -# (1999-09-27) writes that Giles Meteorological Station uses -# South Australian time even though it's located in Western Australia. +# From Christopher Hunt (2006-11-21), after an advance warning +# from Jesper Nørgaard Welen (2006-11-01): +# WA are trialing DST for three years. +# http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf # From Paul Eggert (2018-04-01): # The Guardian Express of Perth, Australia reported today that the @@ -1254,54 +1254,10 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila # https://www.communitynews.com.au/guardian-express/news/exclusive-daylight-savings-coming-wa-summer-2018/ # [The article ends with "Today's date is April 1."] -# Queensland - -# From Paul Eggert (2018-02-26): -# I lack access to the following source for Queensland DST: -# Pearce C. History of daylight saving time in Queensland. -# Queensland Hist J. 2017 Aug;23(6):389-403 -# https://search.informit.com.au/documentSummary;dn=994682348436426;res=IELHSS - -# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): -# # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] -# # [ Dec 1990 ] -# ... -# Zone Australia/Queensland 10:00 AQ %sST -# ... -# Rule AQ 1971 only - Oct lastSun 2:00 1:00 D -# Rule AQ 1972 only - Feb lastSun 3:00 0 E -# Rule AQ 1989 max - Oct lastSun 2:00 1:00 D -# Rule AQ 1990 max - Mar Sun>=1 3:00 0 E - -# From Bradley White (1989-12-24): -# "Australia/Queensland" now observes daylight time (i.e. from -# October 1989). - -# From Bradley White (1991-03-04): -# A recent excerpt from an Australian newspaper... -# ...Queensland...[has] agreed to end daylight saving -# at 3am tomorrow (March 3)... - -# From John Mackin (1991-03-06): -# I can certainly confirm for my part that Daylight Saving in NSW did in fact -# end on Sunday, 3 March. I don't know at what hour, though. (It surprised -# me.) - -# From Bradley White (1992-03-08): -# ...there was recently a referendum in Queensland which resulted -# in the experimental daylight saving system being abandoned. So, ... -# ... -# Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D -# Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S -# ... - -# From Arthur David Olson (1992-03-08): -# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes. - -# From Christopher Hunt (2006-11-21), after an advance warning -# from Jesper Nørgaard Welen (2006-11-01): -# WA are trialing DST for three years. -# http://www.parliament.wa.gov.au/parliament/bills.nsf/9A1B183144403DA54825721200088DF1/$File/Bill175-1B.pdf +# The Australian Bureau of Meteorology FAQ +# http://www.bom.gov.au/faq/faqgen.htm +# (1999-09-27) writes that Giles Meteorological Station uses +# South Australian time even though it's located in Western Australia. # From Rives McDow (2002-04-09): # The most interesting region I have found consists of three towns on the @@ -1359,6 +1315,59 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila # For lack of better info, assume the tradition dates back to the # introduction of standard time in 1895. +# From Stuart Bishop (2024-11-12): +# An article discussing the in-use but technically unofficial timezones +# in the Western Australian portion of the Nullarbor Plain. +# https://www.abc.net.au/news/2024-11-22/outback-wa-properties-strange-time-zones/104542494 +# From Paul Eggert (2024-11-12): +# As the article says, the Eyre Bird Observatory and nearby sheep stations +# can use Tokyo time. Other possibilities include Asia/Chita, Asia/Seoul, +# and Asia/Jayapura. + +# Queensland + +# From Paul Eggert (2018-02-26): +# I lack access to the following source for Queensland DST: +# Pearce C. History of daylight saving time in Queensland. +# Queensland Hist J. 2017 Aug;23(6):389-403 +# https://search.informit.com.au/documentSummary;dn=994682348436426;res=IELHSS + +# From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): +# # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] +# # [ Dec 1990 ] +# ... +# Zone Australia/Queensland 10:00 AQ %sST +# ... +# Rule AQ 1971 only - Oct lastSun 2:00 1:00 D +# Rule AQ 1972 only - Feb lastSun 3:00 0 E +# Rule AQ 1989 max - Oct lastSun 2:00 1:00 D +# Rule AQ 1990 max - Mar Sun>=1 3:00 0 E + +# From Bradley White (1989-12-24): +# "Australia/Queensland" now observes daylight time (i.e. from +# October 1989). + +# From Bradley White (1991-03-04): +# A recent excerpt from an Australian newspaper... +# ...Queensland...[has] agreed to end daylight saving +# at 3am tomorrow (March 3)... + +# From John Mackin (1991-03-06): +# I can certainly confirm for my part that Daylight Saving in NSW did in fact +# end on Sunday, 3 March. I don't know at what hour, though. (It surprised +# me.) + +# From Bradley White (1992-03-08): +# ...there was recently a referendum in Queensland which resulted +# in the experimental daylight saving system being abandoned. So, ... +# ... +# Rule QLD 1989 1991 - Oct lastSun 2:00 1:00 D +# Rule QLD 1990 1992 - Mar Sun>=1 3:00 0 S +# ... + +# From Arthur David Olson (1992-03-08): +# The chosen rules the union of the 1971/1972 change and the 1989-1992 changes. + # southeast Australia # diff --git a/contrib/tzdata/checknow.awk b/contrib/tzdata/checknow.awk index 8b7881d2e27f..450490ee3768 100644 --- a/contrib/tzdata/checknow.awk +++ b/contrib/tzdata/checknow.awk @@ -44,7 +44,7 @@ BEGIN { END { for (zone in zone_data) { data = zone_data[zone] - if (!zonenow[data]) { + if (data && !zonenow[data]) { printf "Zone table should have one of:%s\n", zones[data] zonenow[data] = zone # This suppresses duplicate diagnostics. status = 1 diff --git a/contrib/tzdata/checktab.awk b/contrib/tzdata/checktab.awk index 9a26e4655ddb..5fa60556be13 100644 --- a/contrib/tzdata/checktab.awk +++ b/contrib/tzdata/checktab.awk @@ -9,6 +9,19 @@ BEGIN { if (!zone_table) zone_table = "zone1970.tab" if (!want_warnings) want_warnings = -1 + monthabbr["Jan"] = 1 + monthabbr["Feb"] = 1 + monthabbr["Mar"] = 1 + monthabbr["Apr"] = 1 + monthabbr["May"] = 1 + monthabbr["Jun"] = 1 + monthabbr["Jul"] = 1 + monthabbr["Aug"] = 1 + monthabbr["Sep"] = 1 + monthabbr["Oct"] = 1 + monthabbr["Nov"] = 1 + monthabbr["Dec"] = 1 + while (getline >"/dev/stderr" + status = 1 + } } else { + stdoff = $1 ruleUsed[$2] = 1 if ($3 ~ /%/) rulePercentUsed[$2] = 1 } + + if (stdoff && stdoff !~ /^\-?1?[0-9](:[0-5][0-9](:[0-5][0-9])?)?$/) { + printf "%s:%d: unlikely STDOFF: %s\n", FILENAME, FNR, stdoff \ + >>"/dev/stderr" + status = 1 + } + if (tz && tz ~ /\// && tz !~ /^Etc\//) { if (!tztab[tz] && FILENAME != "backward" \ && zone_table != "zonenow.tab") { diff --git a/contrib/tzdata/etcetera b/contrib/tzdata/etcetera index a5ecd6de1f6e..948531c8d862 100644 --- a/contrib/tzdata/etcetera +++ b/contrib/tzdata/etcetera @@ -51,6 +51,10 @@ Link Etc/GMT GMT # so we moved the names into the Etc subdirectory. # Also, the time zone abbreviations are now compatible with %z. +# There is no "Etc/Unknown" entry, as CLDR says that "Etc/Unknown" +# corresponds to an unknown or invalid time zone, and things would get +# confusing if Etc/Unknown were made valid here. + Zone Etc/GMT-14 14 - %z Zone Etc/GMT-13 13 - %z Zone Etc/GMT-12 12 - %z diff --git a/contrib/tzdata/europe b/contrib/tzdata/europe index f9063949eb83..df334fc27c1d 100644 --- a/contrib/tzdata/europe +++ b/contrib/tzdata/europe @@ -1147,7 +1147,7 @@ Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn # However, Greenland will change to Daylight Saving Time again in 2024 # and onwards. -# From a contributor who wishes to remain anonymous for now (2023-10-29): +# From Jule Dabars (2023-10-29): # https://www.dr.dk/nyheder/seneste/i-nat-skal-uret-stilles-en-time-tilbage-men-foerste-gang-sker-det-ikke-i-groenland # with a link to that page: # https://naalakkersuisut.gl/Nyheder/2023/10/2710_sommertid diff --git a/contrib/tzdata/factory b/contrib/tzdata/factory index d116a115990e..14faf52a792e 100644 --- a/contrib/tzdata/factory +++ b/contrib/tzdata/factory @@ -8,5 +8,15 @@ # time zone abbreviation "-00", indicating that the actual time zone # is unknown. +# TZ="Factory" was added to TZDB in 1989, and in 2016 its abbreviation +# was changed to "-00" from a longish English-language error message. +# Around 2010, CLDR added "Etc/Unknown" for use with TZDB, to stand +# for an unknown or invalid time zone. These two notions differ: +# TZ="Factory" is a valid timezone, so tzalloc("Factory") succeeds, whereas +# TZ="Etc/Unknown" is invalid and tzalloc("Etc/Unknown") fails. +# Also, a downstream distributor could modify Factory to be a +# default timezone suitable for the devices it manufactures, +# whereas that cannot happen for Etc/Unknown. + # Zone NAME STDOFF RULES FORMAT Zone Factory 0 - "Local time zone must be set--use tzsetup" diff --git a/contrib/tzdata/leap-seconds.list b/contrib/tzdata/leap-seconds.list index da0efc8c8566..6f861c888d75 100644 --- a/contrib/tzdata/leap-seconds.list +++ b/contrib/tzdata/leap-seconds.list @@ -60,15 +60,15 @@ # # The following line shows the last update of this file in NTP timestamp: # -#$ 3929093563 +#$ 3945196800 # # 2) Expiration date of the file given on a semi-annual basis: last June or last December # -# File expires on 28 June 2025 +# File expires on 28 December 2025 # # Expire date in NTP timestamp: # -#@ 3960057600 +#@ 3975868800 # # # LIST OF LEAP SECONDS @@ -117,4 +117,4 @@ # please see the readme file in the 'source' directory : # https://hpiers.obspm.fr/iers/bul/bulc/ntp/sources/README # -#h be738595 57b0cf1b b0218343 fb77062f 5a775e7 +#h 848434d5 570f7ea8 d79ba227 a00fc821 f608e2d4 diff --git a/contrib/tzdata/leapseconds b/contrib/tzdata/leapseconds index 6c715cb20b01..76f771427f25 100644 --- a/contrib/tzdata/leapseconds +++ b/contrib/tzdata/leapseconds @@ -69,11 +69,11 @@ Leap 2016 Dec 31 23:59:60 + S # Any additional leap seconds will come after this. # This Expires line is commented out for now, # so that pre-2020a zic implementations do not reject this file. -#Expires 2025 Jun 28 00:00:00 +#Expires 2025 Dec 28 00:00:00 # POSIX timestamps for the data in this file: -#updated 1720104763 (2024-07-04 14:52:43 UTC) -#expires 1751068800 (2025-06-28 00:00:00 UTC) +#updated 1736208000 (2025-01-07 00:00:00 UTC) +#expires 1766880000 (2025-12-28 00:00:00 UTC) # Updated through IERS Bulletin C (https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat) -# File expires on 28 June 2025 +# File expires on 28 December 2025 diff --git a/contrib/tzdata/northamerica b/contrib/tzdata/northamerica index 01f392e0e6a4..8d356aa0069d 100644 --- a/contrib/tzdata/northamerica +++ b/contrib/tzdata/northamerica @@ -27,9 +27,12 @@ # in New York City (1869-10). His 1870 proposal was based on Washington, DC, # but in 1872-05 he moved the proposed origin to Greenwich. -# From Paul Eggert (2018-03-20): +# From Paul Eggert (2024-11-18): # Dowd's proposal left many details unresolved, such as where to draw -# lines between time zones. The key individual who made time zones +# lines between time zones. Sandford Fleming of the Canadian Pacific Railway +# argued for Dowd's proposal in 1876, and Cleveland Abbe of the American +# Meteorology Society published a report in 1879 recommending four US time +# zones based on GMT. However, the key individual who made time zones # work in the US was William Frederick Allen - railway engineer, # managing editor of the Travelers' Guide, and secretary of the # General Time Convention, a railway standardization group. Allen @@ -2631,7 +2634,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 # http://puentelibre.mx/noticia/ciudad_juarez_cambio_horario_noviembre_2022/ # Rule NAME FROM TO - IN ON AT SAVE LETTER/S -Rule Mexico 1931 only - April 30 0:00 1:00 D +Rule Mexico 1931 only - Apr 30 0:00 1:00 D Rule Mexico 1931 only - Oct 1 0:00 0 S Rule Mexico 1939 only - Feb 5 0:00 1:00 D Rule Mexico 1939 only - Jun 25 0:00 0 S diff --git a/contrib/tzdata/southamerica b/contrib/tzdata/southamerica index c8d9097aeb14..1fcf65146785 100644 --- a/contrib/tzdata/southamerica +++ b/contrib/tzdata/southamerica @@ -1687,7 +1687,7 @@ Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... -Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - +Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): @@ -1706,14 +1706,35 @@ Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 -Rule Para 2013 max - Mar Sun>=22 0:00 0 - +Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - +# +# From Heitor David Pinto (2024-09-24): +# Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... +# The text of the bill says that it would enter into force on the first +# Sunday in October 2024, the same date currently scheduled to start DST.... +# https://silpy.congreso.gov.py/web/expediente/132531 +# (2024-10-14): +# The president approved the law on 11 October 2024, +# and it was officially published on 14 October 2024. +# https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 +# The text of the law says that it enters into force on the first +# Sunday in October 2024 (6 October 2024). But the constitution +# prohibits retroactive effect, and the civil code says that laws +# enter into force on the day after their publication or on the day +# that they specify, and it also says that they don't have retroactive +# effect. So I think that the time change on 6 October 2024 should +# still be considered as DST according to the previous law, and +# permanently UTC-3 from 15 October 2024 according to the new law.... +# https://www.constituteproject.org/constitution/Paraguay_2011 +# https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr - -4:00 Para %z + -4:00 Para %z 2024 Oct 15 + -3:00 - %z # Peru # diff --git a/contrib/tzdata/theory.html b/contrib/tzdata/theory.html index d3573ede0dfb..352a3d87078f 100644 --- a/contrib/tzdata/theory.html +++ b/contrib/tzdata/theory.html @@ -123,8 +123,9 @@ If geolocation information is available, a selection interface can locate the user on a timezone map or prioritize names that are geographically close. For an example selection interface, see the tzselect program in the tz code. -The Unicode Common Locale Data -Repository contains data that may be useful for other selection +Unicode's Common Locale Data +Repository (CLDR) +contains data that may be useful for other selection interfaces; it maps timezone names like Europe/Prague to locale-dependent strings like "Prague", "Praha", "Прага", and "布拉格".

@@ -200,6 +201,8 @@ in decreasing order of importance:
  • A name must not be empty, or contain '//', or start or end with '/'. + Also, a name must not be 'Etc/Unknown', as + CLDR uses that string for an unknown or invalid timezone.
  • Do not use names that differ only in case. @@ -220,10 +223,18 @@ in decreasing order of importance: do not need locations, since local time is not defined there.
  • - If all the clocks in a timezone have agreed since 1970, - do not bother to include more than one timezone - even if some of the clocks disagreed before 1970. + If all clocks in a region have agreed since 1970, + give them just one name even if some of the clocks disagreed before 1970, + or reside in different countries or in notable or faraway locations. Otherwise these tables would become annoyingly large. + For example, do not create a name Indian/Crozet + as a near-duplicate or alias of Asia/Dubai + merely because they are different countries or territories, + or their clocks disagreed before 1970, or the + Crozet Islands + are notable in their own right, + or the Crozet Islands are not adjacent to other locations + that use Asia/Dubai.
  • If boundaries between regions are fluid, such as during a war or @@ -579,10 +590,10 @@ in decreasing order of importance: locations while uninhabited. The leading '-' is a flag that the UT offset is in some sense undefined; this notation is derived - from Internet + from Internet RFC 3339. (The abbreviation 'Z' that - Internet + Internet RFC 9557 uses for this concept would violate the POSIX requirement of at least three characters in an abbreviation.) @@ -1115,8 +1126,8 @@ However POSIX.1-2024, like earlier POSIX editions, has some limitations: the name of a file from which time-related information is read. The file's format is TZif, a timezone information format that contains binary data; see - Internet - RFC 8536. + Internet + RFC 9636. The daylight saving time rules to be used for a particular timezone are encoded in the TZif file; the format of the file allows US, @@ -1201,12 +1212,15 @@ The vestigial APIs are: The tm_isdst member is almost never needed and most of its uses should be discouraged in favor of the abovementioned APIs. + It was intended as an index into the tzname variable, + but as mentioned previously that usage is obsolete. Although it can still be used in arguments to mktime to disambiguate timestamps near a DST transition when the clock jumps back on platforms lacking tm_gmtoff, this - disambiguation does not work when standard time itself jumps back, - which can occur when a location changes to a time zone with a + disambiguation works only for proleptic TZ strings; + it does not work in general for geographical timezones, + such as when a location changes to a time zone with a lesser UT offset.
    • @@ -1223,8 +1237,8 @@ The vestigial APIs are: Programs that in the past used the timezone function may now examine localtime(&clock)->tm_zone (if TM_ZONE is defined) or - tzname[localtime(&clock)->tm_isdst] - (if HAVE_TZNAME is nonzero) to learn the correct time + use strftime with a %Z conversion specification + to learn the correct time zone abbreviation to use.
  • diff --git a/contrib/tzdata/version b/contrib/tzdata/version index 699e50d4d38e..0846b7f265fa 100644 --- a/contrib/tzdata/version +++ b/contrib/tzdata/version @@ -1 +1 @@ -2024b +2025a diff --git a/contrib/tzdata/zone.tab b/contrib/tzdata/zone.tab index bfc0b5933044..d2be66359f3b 100644 --- a/contrib/tzdata/zone.tab +++ b/contrib/tzdata/zone.tab @@ -310,7 +310,7 @@ PF -0900-13930 Pacific/Marquesas Marquesas Islands PF -2308-13457 Pacific/Gambier Gambier Islands PG -0930+14710 Pacific/Port_Moresby most of Papua New Guinea PG -0613+15534 Pacific/Bougainville Bougainville -PH +1435+12100 Asia/Manila +PH +143512+1205804 Asia/Manila PK +2452+06703 Asia/Karachi PL +5215+02100 Europe/Warsaw PM +4703-05620 America/Miquelon diff --git a/contrib/tzdata/zone1970.tab b/contrib/tzdata/zone1970.tab index 764215888efa..3a5a71c508d4 100644 --- a/contrib/tzdata/zone1970.tab +++ b/contrib/tzdata/zone1970.tab @@ -184,7 +184,7 @@ IR +3540+05126 Asia/Tehran IT,SM,VA +4154+01229 Europe/Rome JM +175805-0764736 America/Jamaica JO +3157+03556 Asia/Amman -JP +353916+1394441 Asia/Tokyo +JP,AU +353916+1394441 Asia/Tokyo Eyre Bird Observatory KE,DJ,ER,ET,KM,MG,SO,TZ,UG,YT -0117+03649 Africa/Nairobi KG +4254+07436 Asia/Bishkek KI,MH,TV,UM,WF +0125+17300 Pacific/Tarawa Gilberts, Marshalls, Wake @@ -247,7 +247,7 @@ PF -0900-13930 Pacific/Marquesas Marquesas Islands PF -2308-13457 Pacific/Gambier Gambier Islands PG,AQ,FM -0930+14710 Pacific/Port_Moresby Papua New Guinea (most areas), Chuuk, Yap, Dumont d'Urville PG -0613+15534 Pacific/Bougainville Bougainville -PH +1435+12100 Asia/Manila +PH +143512+1205804 Asia/Manila PK +2452+06703 Asia/Karachi PL +5215+02100 Europe/Warsaw PM +4703-05620 America/Miquelon @@ -294,7 +294,7 @@ RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea SA,AQ,KW,YE +2438+04643 Asia/Riyadh Syowa SB,FM -0932+16012 Pacific/Guadalcanal Pohnpei SD +1536+03232 Africa/Khartoum -SG,MY +0117+10351 Asia/Singapore peninsular Malaysia +SG,AQ,MY +0117+10351 Asia/Singapore peninsular Malaysia, Concordia SR +0550-05510 America/Paramaribo SS +0451+03137 Africa/Juba ST +0020+00644 Africa/Sao_Tome diff --git a/contrib/tzdata/zonenow.tab b/contrib/tzdata/zonenow.tab index 01f536b3ba38..d2c1e48584f8 100644 --- a/contrib/tzdata/zonenow.tab +++ b/contrib/tzdata/zonenow.tab @@ -97,9 +97,6 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe # -04/-03 (Chile DST) XX -3327-07040 America/Santiago most of Chile # -# -04/-03 (Paraguay DST) -XX -2516-05740 America/Asuncion Paraguay -# # -04/-03 - AST/ADT (North America DST) XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda # @@ -224,7 +221,7 @@ XX +1345+10031 Asia/Bangkok Russia; Indochina; Christmas Island XX -0610+10648 Asia/Jakarta Indonesia ("WIB") # # +08 -XX +0117+10351 Asia/Singapore Russia; Brunei; Malaysia; Singapore +XX +0117+10351 Asia/Singapore Russia; Brunei; Malaysia; Singapore; Concordia # # +08 - AWST XX -3157+11551 Australia/Perth Western Australia ("AWST") *** 18 LINES SKIPPED ***