From eggert at cs.ucla.edu Tue Mar 26 05:50:25 2019
From: eggert at cs.ucla.edu (Paul Eggert)
Date: Mon, 25 Mar 2019 22:50:25 -0700
Subject: [tz-announce] 2019a release of tz code and data available
Message-ID: <0cccf644-1a38-f102-e0f4-d15034364c9f@cs.ucla.edu>
The 2019a release of the tz code and data is available. It reflects the
following changes, which were either circulated on the tz mailing list or are
relatively minor technical or administrative changes:
Briefly:
Palestine "springs forward" on 2019-03-30 instead of 2019-03-23.
Metlakatla "fell back" to rejoin Alaska Time on 2019-01-20 at 02:00.
Changes to past and future timestamps
Palestine will not start DST until 2019-03-30, instead of 2019-03-23 as
previously predicted. Adjust our prediction by guessing that spring
transitions will be between 24 and 30 March, which matches recent practice
since 2016. (Thanks to Even Scharning and Tim Parenti.)
Metlakatla ended its observance of Pacific standard time,
rejoining Alaska Time, on 2019-01-20 at 02:00. (Thanks to Ryan
Stanley and Tim Parenti.)
Changes to past timestamps
Israel observed DST in 1980 (08-02/09-13) and 1984 (05-05/08-25).
(Thanks to Alois Treindl and Isaac Starkman.)
Changes to time zone abbreviations
Etc/UCT is now a backward-compatibility link to Etc/UTC, instead
of being a separate zone that generates the abbreviation "UCT",
which nowadays is typically a typo. (Problem reported by Isiah
Meadows.)
Changes to code
zic now has an -r option to limit the time range of output data.
For example, 'zic -r @1000000000' limits the output data to
timestamps starting 1000000000 seconds after the Epoch.
This helps shrink output size and can be useful for applications
not needing the full timestamp history, such as TZDIST truncation;
see Internet RFC 8536 section 5.1. (Inspired by a feature request
from Christopher Wong, helped along by bug reports from Wong and
from Tim Parenti.)
Changes to documentation
Mention Internet RFC 8536 (February 2019), which documents TZif.
tz-link.html now cites tzdata-meta
.
Here are links to the release files:
https://www.iana.org/time-zones/repository/releases/tzcode2019a.tar.gz
https://www.iana.org/time-zones/repository/releases/tzdata2019a.tar.gz
https://www.iana.org/time-zones/repository/releases/tzdb-2019a.tar.lz
As usual, links to the latest release files are here:
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 14c73382cf95efd5f189379427b7b37ca22b9eff
dated 2019-03-25 22:01:33 -0700 and tagged '2019a' in the development GitHub
repository at .
Here are the SHA-512 checksums for the release files:
7cc76ce6be4a67c3e1b2222cb632d2de9dabb76899793a938f87a1d4bb20e462cabdae9e3b986aaabaa400795370510095d236dbad5aff4c192d0887f0ecedf5
tzcode2019a.tar.gz
d8eb5b2b68abee08bd2b0d2134bce85b5c0aee85168e9697a607604ed5be7d1539ac60fda9b37e0c9c793ef6251978bc250563a0af59497fde775499964bb5aa
tzdata2019a.tar.gz
5971d53ceb8cd9e0723d0694c2dca5a3781b9c84bdfef2eb324e9f94fb0b25da263cf59b5429bc77e12e549130aab8c8b1755c34d62bf672c184210c629328f2
tzdb-2019a.tar.lz
Here are the GPG checksums for the release files:
-----BEGIN PGP SIGNATURE-----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=kJqF
-----END PGP SIGNATURE-----
-----BEGIN PGP SIGNATURE-----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=g5BY
-----END PGP SIGNATURE-----
-----BEGIN PGP SIGNATURE-----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=6VXD
-----END PGP SIGNATURE-----
PS. If your tzdata parser does not yet support negative DST offsets,
this particular release's data entries are also available in a
rearguard-format tarball and signature that does not contain such
offsets. This is intended to be a temporary transition aid for these
parsers. The URLs are:
https://web.cs.ucla.edu/~eggert/tz/release/2019a/tzdata2019a-rearguard.tar.gz
https://web.cs.ucla.edu/~eggert/tz/release/2019a/tzdata2019a-rearguard.tar.gz.asc
with the following SHA-512 and GPG checksums:
1ebca45c43aaed76fcb8894a5e8321975cc74a272a9e7b83b2f4ca9d5c2c0b4a4de276bd019d95468ce7e6b88d8afdab70b17580071b8a54cdf2218c2bb8a069
tzdata2019a-rearguard.tar.gz
-----BEGIN PGP SIGNATURE-----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=bFDj
-----END PGP SIGNATURE-----