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Feature #14117

closed

Update tzdata zones from 2021b

Added by Andy Fiddaman 8 months ago. Updated 7 months ago.

Status:
Closed
Priority:
High
Assignee:
Category:
system data
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Bite-size
Tags:
Gerrit CR:

Description

tzdata 2021b has been released which includes updates to the DST data for Samoa and Jordan.

For Jordan, DST is now going to start in February rather than March.
Samoa no longer observes DST - this should have started this week - https://mm.icann.org/pipermail/tz/2021-September/030796.html

tzdata 2021b also includes a set of controversial changes that merges some zones, renames others and makes some pre-1970 data inaccurate. For more details, see https://blog.joda.org/2021/09/big-problems-at-timezone-database.html for some more details.

*I am not planning to integrate these wider changes as the way forward is still being debated on the TZ mailing list, and more analysis would be required for illumos to ascertain the affect on various components such as installers and timezone libraries. *


Related issues

Related to illumos gate - Feature #14186: Update tzdata to 2021eClosedAndy Fiddaman

Actions
Actions #1

Updated by Electric Monk 8 months ago

  • Gerrit CR set to 1732
Actions #2

Updated by Andy Fiddaman 8 months ago

I tested by comparing the output of the script in https://www.illumos.org/issues/13467 before and after, by building an OmniOS installation image containing this and checking that the TZ select dialogues still worked and manually checking that the date for Samoa was now correct (no DST):

Without patch% TZ=Pacific/Apia date
Fri Oct  1 12:48:32 +14 2021
With patch% TZ=Pacific/Apia date
Fri Oct  1 11:48:37 +13 2021
Actions #3

Updated by Andy Fiddaman 7 months ago

Actions #4

Updated by Andy Fiddaman 7 months ago

  • Status changed from In Progress to Closed

This was integrated:

commit db7e2a9042b61851ffaad37cfcf339b3371f4422
Author:     Andy Fiddaman <omnios@citrus-it.co.uk>
AuthorDate: Mon Sep 27 08:36:58 2021 +0000
Commit:     Andy Fiddaman <omnios@citrus-it.co.uk>
CommitDate: Sat Oct 2 13:35:55 2021 +0000

    14117 Update tzdata zones from 2021b
    Reviewed by: Toomas Soome <tsoome@me.com>
    Reviewed by: Klaus Ziegler <klausz@haus-gisela.de>
    Approved by: Dan McDonald <danmcd@joyent.com>
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