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py-tzdata: updated to 2025.2

Version 2025.2
Upstream version 2025b released 2025-03-22T20:40:46+00:00

Briefly:

New zone for Aysén Region in Chile which moves from -04/-03 to -03.

Changes to future timestamps

Chile's Aysén Region moves from -04/-03 to -03 year-round, joining Magallanes
Region.  The region will not change its clocks on 2025-04-05 at 24:00, diverging
from America/Santiago and creating a new zone America/Coyhaique.  (Thanks to
Yonathan Dossow.)  Model this as a change to standard offset effective
2025-03-20.

Changes to past timestamps

Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at year end.
(Thanks to Roozbeh Pournader.)

py-tzdata: updated to 2025.1

Version 2025.1
Upstream version 2025a released 2025-01-15T18:47:24+00:00

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 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.

py-tzdata: updated to 2024.2

Version 2024.2
Upstream version 2024b released 2024-09-04T19:27:47+00:00

Briefly:

Improve historical data for Mexico, Mongolia, and Portugal. System V names are
now obsolescent. The main data form now uses %z. The code now conforms to RFC
8536 for early timestamps. Support POSIX.1-2024, which removes asctime_r and
ctime_r. Assume POSIX.2-1992 or later for shell scripts. SUPPORT_C89 now
defaults to 1.

Changes to past timestamps

Asia/Choibalsan is now an alias for Asia/Ulaanbaatar rather than being a
separate Zone with differing behavior before April 2008. This seems better given
our wildly conflicting information about Mongolia's time zone history.  (Thanks
to Heitor David Pinto.)

Historical transitions for Mexico have been updated based on official Mexican
decrees.  The affected timestamps occur during the years 1921-1927, 1931, 1945,
1949-1970, and 1981-1997. The affected zones are America/Bahia_Banderas,
America/Cancun, America/Chihuahua, America/Ciudad_Juarez, America/Hermosillo,
America/Mazatlan, America/Merida, America/Mexico_City, America/Monterrey,
America/Ojinaga, and America/Tijuana. (Thanks to Heitor David Pinto.)

Historical transitions for Portugal, represented by Europe/Lisbon,
Atlantic/Azores, and Atlantic/Madeira, have been updated based on a close
reading of old Portuguese legislation, replacing previous data mainly
originating from Whitman and Shanks & Pottenger.  These changes affect a few
transitions in 1917-1921, 1924, and 1940 throughout these regions by a few hours
or days, and various timestamps between 1977 and 1993 depending on the region.
In particular, the Azores and Madeira did not observe DST from 1977 to 1981.
Additionally, the adoption of standard zonal time in former Portuguese colonies
have been adjusted: Africa/Maputo in 1909, and Asia/Dili by 22 minutes at the
start of 1912. (Thanks to Tim Parenti.)

Changes to past tm_isdst flags

The period from 1966-04-03 through 1966-10-02 in Portugal is now modeled as DST,
to more closely reflect how contemporaneous changes in law entered into force.

Changes to data

Names present only for compatibility with UNIX System V (last released in the
1990s) have been moved to 'backward'. These names, which for post-1970
timestamps mostly just duplicate data of geographical names, were confusing
downstream uses. Names moved to 'backward' are now links to geographical names.
This affects behavior for TZ='EET' for some pre-1981 timestamps, for TZ='CET'
for some pre-1947 timestamps, and for TZ='WET' for some pre-1996 timestamps.
Also, TZ='MET' now behaves like TZ='CET' and so uses the abbreviation "CET"
rather than "MET". Those needing the previous TZDB behavior, which does not
match any real-world clocks, can find the old entries in 'backzone'. (Problem
reported by Justin Grant.)

The main source files' time zone abbreviations now use %z, supported by zic
since release 2015f and used in vanguard form since release 2022b.  For example,
America/Sao_Paulo now contains the zone continuation line "-3:00 Brazil %z",
which is less error prone than the old "-3:00 Brazil -03/-02".  This does not
change the represented data: the generated TZif files are unchanged. Rearguard
form still avoids %z, to support obsolescent parsers.

Asia/Almaty has been removed from zonenow.tab as it now agrees with
Asia/Tashkent for future timestamps, due to Kazakhstan's 2024-02-29 time zone
change.  Similarly, America/Scoresbysund has been removed, as it now agrees with
America/Nuuk due to its 2024-03-31 time zone change.

Changes to documentation

The documentation now reflects POSIX.1-2024.

Changes to commentary

Commentary about historical transitions in Portugal and her former colonies has
been expanded with links to many relevant legislation. (Thanks to Tim Parenti.)

py-tzdata: updated to 2024.1

Version 2024.1
Upstream version 2024a released 2024-02-01T17:28:56+00:00

Briefly:

Kazakhstan unifies on UTC+5 beginning 2024-03-01. Palestine springs forward a
week later after Ramadan. zic no longer pretends to support indefinite-past DST.
localtime no longer mishandles Ciudad Juárez in 2422.

Changes to future timestamps

Kazakhstan unifies on UTC+5.  This affects Asia/Almaty and Asia/Qostanay which
together represent the eastern portion of the country that will transition from
UTC+6 on 2024-03-01 at 00:00 to join the western portion.  (Thanks to Zhanbolat
Raimbekov.)

Palestine springs forward a week later than previously predicted in 2024 and
2025.  (Thanks to Heba Hamad.)  Change spring-forward predictions to the second
Saturday after Ramadan, not the first; this also affects other predictions
starting in 2039.

Changes to past timestamps

Asia/Ho_Chi_Minh's 1955-07-01 transition occurred at 01:00 not 00:00.  (Thanks
to Đoàn Trần Công Danh.)

From 1947 through 1949, Toronto's transitions occurred at 02:00 not 00:00.
(Thanks to Chris Walton.)

In 1911 Miquelon adopted standard time on June 15, not May 15.

Changes to documentation

The strftime man page documents which struct tm members affect which conversion
specs, and that tzset is called.  (Problems reported by Robert Elz and Steve
Summit.)

py-tzdata: updated to 2023.4

Version 2023.4
Upstream version 2023d released 2023-12-22T04:02:24+00:00

Briefly:

Ittoqqortoormiit, Greenland changes time zones on 2024-03-31. Vostok, Antarctica
changed time zones on 2023-12-18. Casey, Antarctica changed time zones five
times since 2020. Code and data fixes for Palestine timestamps starting in 2072.
A new data file zonenow.tab for timestamps starting now.

Changes to future timestamps

Ittoqqortoormiit, Greenland (America/Scoresbysund) joins most of the rest of
Greenland's timekeeping practice on 2024-03-31, by 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.

Fix predictions for DST transitions in Palestine in 2072-2075, correcting a typo
introduced in 2023a.

Changes to past and future timestamps

Vostok, Antarctica changed to +05 on 2023-12-18.  It had been at +07 (not +06)
for years.  (Thanks to Zakhary V. Akulov.)

Change data for Casey, Antarctica to agree with timeanddate.com, by adding five
time zone changes since 2020.  Casey is now at +08 instead of +11.

Changes to past tm_isdst flags

Much of Greenland, represented by America/Nuuk, changed its standard time from
-03 to -02 on 2023-03-25, not on 2023-10-28. This does not affect UTC offsets,
only the tm_isdst flag. (Thanks to Thomas M. Steenholdt.)

New data file

A new data file zonenow.tab helps configure applications that use timestamps
dated from now on.  This simplifies configuration, since users choose from a
smaller Zone set.  The file's format is experimental and subject to change.

Changes to commentary

Limitations and hazards of the optional support for obsolescent C89 platforms
are documented better, along with a tentative schedule for removing this
support.

py-tzdata: updated to 2023.3

Switch from pytzdata to tzdata.

time: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

time: Remove SHA1 hashes for distfiles

py-tzdata: updated to 2020.1

2020.1:
Unknown changes

py-tzdata: updated to 2019.3

2019.3:
Unknown changes

py-tzdata: updated to 2019.2

2019.2:
Unknown changes

py-tzdata: updated to 2019.1

Release 2019.1 (2019a):
Unknown changes

py-tzdata: updated to 2018.9

2018.9:
Unknown changes

Pullup ticket #5870 - requested by maya
time/py-dateutil: timezone data update
time/py-tzdata: timezone data update

Revisions pulled up:
- time/py-dateutil/Makefile                                     1.24-1.25
- time/py-dateutil/distinfo                                     1.14-1.15
- time/py-tzdata/Makefile                                       1.7
- time/py-tzdata/distinfo                                       1.7

---
   Module Name:    pkgsrc
   Committed By:   adam
   Date:           Fri Oct 26 08:06:11 UTC 2018

   Modified Files:
           pkgsrc/time/py-dateutil: Makefile distinfo

   Log Message:
   py-dateutil: updated to 2.7.4

   Version 2.7.4:

   Data updates
   - Updated tzdata version to 2018f.

---
   Module Name:    pkgsrc
   Committed By:   adam
   Date:           Mon Oct 29 11:10:07 UTC 2018

   Modified Files:
           pkgsrc/time/py-dateutil: Makefile distinfo

   Log Message:
   py-dateutil: updated to 2.7.5

   Version 2.7.5:

   Data updates
   - Update tzdata to 2018g

---
   Module Name:    pkgsrc
   Committed By:   adam
   Date:           Mon Oct 29 11:11:27 UTC 2018

   Modified Files:
           pkgsrc/time/py-tzdata: Makefile distinfo

   Log Message:
   py-tzdata: updated to 2018.7

   2018.7:
   Unknown changes

py-tzdata: updated to 2018.7

2018.7:
Unknown changes

py-tzdata: updated to 2018.5

2018.5:
Unknown changes.

py-tzdata: updated to 2018.4

2018.4:
Unknown changes.

py-tzdata: updated to 2018.3

2018.3:
Unknown changes.

py-tzdata: updated to 2017.3.1

2017.3.1:
Unknown changes

py-tzdata: updated to 2017.3

2017.3:
Changes unknown.

Add pytzdata-2017.2.2:

Official timezone database for Python.