The 2025b release of the tz code and data is available.
This release contains the following changes:
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.)
Changes to code
'zic -l TIMEZONE -d . -l /some/other/file/system' no longer
attempts to create an incorrect symlink, and no longer has a
read buffer underflow. (Problem reported by Evgeniy Gorbanev.)
Here are links to the release files:
https://www.iana.org/time-zones/repository/releases/tzcode2025b.tar.gz
https://www.iana.org/time-zones/repository/releases/tzdata2025b.tar.gz
https://www.iana.org/time-zones/repository/releases/tzdb-2025b.tar.lz
The following convenience links are also available, although they may
point to the previous release until the relevant caches are refreshed:
https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz
https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz
https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz
Links are also available via plain HTTP, and via FTP from
ftp://ftp.iana.org/tz/releases with the same basenames as above.
Each release file has a GPG signature, which can be retrieved by
appending ".asc" to the above URLs. Copies of these signatures are
appended to this message.
This release corresponds to commit
7e1145bfdb9630c127841dc8ce808a937a300938 dated 2025-03-22 13:40:46 -0700
and tagged '2025b' in the development GitHub repository at
<https://github.com/eggert/tz>.
Here are the SHA-512 checksums for the release files:
19826b12968c10fc4db7e4b07ba782bfb8590eeebaec6f719d74b92a2e642ab817bd72bceff0015ce52a838edfdb00753b3cd87dd84b35abf2606e5bee445f76
tzcode2025b.tar.gz
7d83741f3cae81fac8131994b43c55b6da7328df18b706e5ee40e9b3212bc506e6f8fc90988b18da424ed59eff69bce593f2783b7b5f18eb483a17aeb94258d6
tzdata2025b.tar.gz
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tzdb-2025b.tar.lz
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