The 2016c release of the tz code and data is available. Its most urgent
change is for Asia/Baku, where the update takes effect this weekend.
This release reflects the following changes, which were either
circulated on the tz mailing list or are relatively minor technical or
administrative changes:
Changes affecting future time stamps
Azerbaijan no longer observes DST. (Thanks to Steffen Thorsen.)
Chile reverts from permanent to seasonal DST. (Thanks to Juan
Correa for the heads-up, and to Tim Parenti for corrections.)
Guess that future transitions are August's and May's second
Saturdays at 24:00 mainland time. Also, call the period from
2014-09-07 through 2016-05-14 daylight saving time instead of
standard time, as that seems more appropriate now.
Changes affecting past time stamps
Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to
+02/+03 on 1989-03-26, not 1991-03-31. Europe/Volgograd changed
from +04/+05 to +03/+04 on 1988-03-27, not 1989-03-26.
(Thanks to Stepan Golosunov.)
Changes to commentary
Several updates and URLs for historical and proposed Russian changes.
(Thanks to Stepan Golosunov, Matt Johnson, and Alexander Krivenyshev.)
Here are links to the release files:
ftp://ftp.iana.org/tz/releases/tzcode2016c.tar.gzftp://ftp.iana.org/tz/releases/tzdata2016c.tar.gz
The files are also available via HTTP as follows:
http://www.iana.org/time-zones/repository/releases/tzcode2016c.tar.gzhttp://www.iana.org/time-zones/repository/releases/tzdata2016c.tar.gz
As usual, links to the latest release files are here:
http://www.iana.org/time-zones/repository/tzcode-latest.tar.gzhttp://www.iana.org/time-zones/repository/tzdata-latest.tar.gzftp://ftp.iana.org/tz/tzcode-latest.tar.gzftp://ftp.iana.org/tz/tzdata-latest.tar.gz
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
1284afb4bdc70f97f265ac2f49188217778413ef dated Wed Mar 23 00:51:27 2016
-0700 and tagged '2016c' in the experimental github repository at
<https://github.com/eggert/tz>.
Here are the SHA-512 checksums for the release files:
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tzcode2016c.tar.gz
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tzdata2016c.tar.gz
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The 2016b 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. A last-minute note: some
2016b data entries cause zic implementations derived from tz releases 2005j
through 2015e to issue warnings like "time zone abbreviation differs from POSIX
standard (+03)". These warnings should not otherwise affect zic's output and can
safely be ignored on today's platforms, as the warnings refer to a restriction
in POSIX.1-1988 that was removed in POSIX.1-2001. One way to suppress the
warnings is to upgrade to zic derived from tz releases 2015f and later.
Changes affecting future time stamps
New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and
Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on
2016-03-27 at 02:00 local time. They need distinct zones since their
post-1970 histories disagree. New zone Asia/Barnaul for Altai Krai and
Altai Republic, Russia, which will switch from +06 to +07 on the same date
and local time. Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27
at 02:00. (Thanks to Alexander Krivenyshev for the heads-up, and to
Matt Johnson and Stepan Golosunov for followup.)
As a trial of a new system that needs less information to be made up,
the new zones use numeric time zone abbreviations like "+04"
instead of invented abbreviations like "ASTT".
Haiti will not observe DST in 2016. (Thanks to Jean Antoine via
Steffen Thorsen.)
Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00.
(Thanks to Hannah Kreitem.) Guess future transitions will be March's last
Saturday at 01:00, not March's last Friday at 24:00.
Changes affecting past time stamps
Europe/Chisinau observed DST during 1990, and switched from +04 to
+03 at 1990-05-06 02:00, instead of switching from +03 to +02.
(Thanks to Stepan Golosunov.)
1991 abbreviations in Europe/Samara should be SAMT/SAMST, not
KUYT/KUYST. (Thanks to Stepan Golosunov.)
Changes to code
tzselect's diagnostics and checking, and checktab.awk's checking,
have been improved. (Thanks to J William Piggott.)
tzcode now builds under MinGW. (Thanks to Ian Abbott and Esben Haabendal.)
tzselect now tests Julian-date TZ settings more accurately.
(Thanks to J William Piggott.)
Changes to commentary
Comments in zone tables have been improved. (Thanks to J William Piggott.)
tzselect again limits its menu comments so that menus fit on a
24x80 alphanumeric display.
A new web page tz-how-to.html. (Thanks to Bill Seymour.)
In the Theory file, the description of possible time zone abbreviations in
tzdata has been cleaned up, as the old description was unclear and
inconsistent. (Thanks to Alain Mouette for reporting the problem.)
Here are links to the release files:
ftp://ftp.iana.org/tz/releases/tzcode2016b.tar.gzftp://ftp.iana.org/tz/releases/tzdata2016b.tar.gz
The files are also available via HTTP as follows:
http://www.iana.org/time-zones/repository/releases/tzcode2016b.tar.gzhttp://www.iana.org/time-zones/repository/releases/tzdata2016b.tar.gz
As usual, links to the latest release files are here:
http://www.iana.org/time-zones/repository/tzcode-latest.tar.gzhttp://www.iana.org/time-zones/repository/tzdata-latest.tar.gzftp://ftp.iana.org/tz/tzcode-latest.tar.gzftp://ftp.iana.org/tz/tzdata-latest.tar.gz
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 70161f48bc212678c58490f7faabc286c90b2a05
dated Sat Mar 12 17:30:14 2016 -0800 and tagged '2016b' in the experimental
github repository at <https://github.com/eggert/tz>.
Here are the SHA-512 checksums for the release files:
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