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  1. JDK
  2. JDK-8213085

(tz) Upgrade time-zone data to tzdata2018g

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    • Subcomponent:
    • Resolved In Build:
      b19
    • CPU:
      generic
    • OS:
      generic

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        Description

        [Sat Oct 27 15:55:08 UTC 2018]

        The 2018g 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:
             Morocco switches to permanent +01 on 2018-10-27.

           Changes to future timestamps

             Morocco switches from +00/+01 to permanent +01 effective 2018-10-27,
             so its clocks will not fall back on 2018-10-28 as previously scheduled.
             (Thanks to Mohamed Essedik Najd and Brian Inglis.)

           Changes to code

             When generating TZif files with leap seconds, zic no longer uses a
             format that trips up older 32-bit clients, fixing a bug introduced
             in 2018f. (Reported by Daniel Fischer.) Also, the zic workaround
             for QTBUG-53071 now also works for TZif files with leap seconds.

             The translator to rearguard format now rewrites the line
             "Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S" to
             "Rule Japan 1948 1951 - Sep Sun>=9 1:00 0 S".
             This caters to zic before 2007 and to Oracle TZUpdater 2.2.0
             and earlier. (Reported by Christos Zoulas.)

           Changes to past time zone abbreviations

             Change HDT to HWT/HPT for WWII-era abbreviations in Hawaii.
             This reverts to 2011h, as the abbreviation change in 2011i was
             likely inadvertent.

           Changes to documentation

             tzfile.5 has new sections on interoperability issues.

        Here are links to the release files:

           https://www.iana.org/time-zones/repository/releases/tzcode2018g.tar.gz
           https://www.iana.org/time-zones/repository/releases/tzdata2018g.tar.gz
           https://www.iana.org/time-zones/repository/releases/tzdb-2018g.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.

        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/2018g/tzdata2018g-rearguard.tar.gz
        https://web.cs.ucla.edu/~eggert/tz/release/2018g/tzdata2018g-rearguard.tar.gz.asc

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                • Assignee:
                  rpatil Ramanand Patil
                  Reporter:
                  rpatil Ramanand Patil
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