Bug#1056908: tzdata: Support IANA time zones
On Mon, 2023-12-04 at 10:31 -0500, John Clark wrote:
> On 12/4/23 10:13 AM, Benjamin Drung wrote:
> > Hi,
> >
> > On Sun, 2023-11-26 at 09:23 -0500, John Clark wrote:
> > > Package: tzdata
> > > Version: 2023c-8
> > >
> > > The 12 well-known US time zones have been dropped from Debian tzdata as
> > > of 2023c-8:
> > > https://tracker.debian.org/news/1451157/accepted-tzdata-2023c-8-source-into-unstable
> > >
> > > These time zones are still officially recognized and fully supported by
> > > IANA.
> > >
> > > IANA Timezone Database:
> > > https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
> > >
> > > /usr/share/zoneinfo/US/Alaska
> > > /usr/share/zoneinfo/US/Aleutian
> > > /usr/share/zoneinfo/US/Arizona
> > > /usr/share/zoneinfo/US/Central
> > > /usr/share/zoneinfo/US/East-Indiana
> > > /usr/share/zoneinfo/US/Eastern
> > > /usr/share/zoneinfo/US/Hawaii
> > > /usr/share/zoneinfo/US/Indiana-Starke
> > > /usr/share/zoneinfo/US/Michigan
> > > /usr/share/zoneinfo/US/Mountain
> > > /usr/share/zoneinfo/US/Pacific
> > > /usr/share/zoneinfo/US/Samoa
> > >
> > >
> > > Their removal appears to be related to this request:
> > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1040997
> > >
> > > This request does not provide any support as to why Debian should
> > > deviate from IANA standards.
> > >
> > > Requesting that Debian again adopt international time zone standards and
> > > support these well known IANA time zones as it does in Bookworm.
> > These timezones are considered legacy by the upstream tz project. These
> > timezones were not removed but moved to tzdata-legacy. So please install
> > tzdata-legacy if you want to use them:
> >
> > sudo apt install tzdata-legacy
> >
> I looked for deprecations in the upstream project but did not find any.
> Can you cite any IANA deprecation references?
All legacy names are mentioned in the backward file [1]. The backward
file has an explanation at the beginning of the file. It is also
mentioned on theory.html[2].
[1] https://github.com/eggert/tz/blob/main/backward
[2] https://data.iana.org/time-zones/theory.html
--
Benjamin Drung
Debian & Ubuntu Developer
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