[tz] Regarding new Time Zone and DST for Chile 2016 - Possible corrections on tzdata2016c.tar.gz

Carlos Huenchullan carlos.huenchullan at ericsson.com
Thu Apr 7 15:33:49 UTC 2016


Hello all,

Regarding the last Time Zone Data, two possible corrections could be applied for Chile rules (southamerica file)



1.       Rules are pointed to Zone America/Santiago and Pacific/Easter. But it missing the links to Chile/Continental and Chile/EasterIsland.

We tested in a Solaris 10 server with TZ=Chile/Continental and the new rules were not applied. So the following two lines should be applied at the end of Chile section:





Link America/Santiago   Chile/Continental

Link Pacific/Easter     Chile/EasterIsland




2.       The following suggestion is about how it is defined the Time Zone for Chile and if it applies DST or not. This change is to keep an accurate time zone defined, CLT or CLST, this year.



Before May 15th the Time Zone is CLT (UTC -3). If we applied the new rules now, the time zone will be CLST (UTC -3) until May 15th. The time will be fine, but the timezone is not ok. My suggestion is to add the following lines marked in red in the Zone section:



# Zone NAME                  GMTOFF             RULES   FORMAT             [UNTIL]

Zone America/Santiago               -4:42:46 -             LMT       1890

                                               -4:42:46 -             SMT       1910 Jan 10 # Santiago Mean Time

                                               -5:00      -              CLT         1916 Jul  1 # Chile Time

                                               -4:42:46 -             SMT       1918 Sep 10

                                               -4:00      -              CLT         1919 Jul  1

                                               -4:42:46 -             SMT       1927 Sep  1

                                               -5:00      Chile      CL%sT   1932 Sep  1

                                               -4:00      -              CLT         1942 Jun  1

                                               -5:00      -              CLT         1942 Aug  1

                                               -4:00      -              CLT         1946 Jul 15

                                               -4:00      1:00       CLST      1946 Sep  1 # central Chile

                                               -4:00      -              CLT         1947 Apr  1

                                               -5:00      -              CLT         1947 May 21 23:00

                                               -4:00      Chile     CL%sT   2015 Apr 26 3:00u

                                               -3:00      Chile     CLT         2016 May 15 3:00u

                                               -4:00      Chile      CL%sT

Zone Pacific/Easter        -7:17:28 -             LMT       1890

                                               -7:17:28 -             EMT       1932 Sep    # Easter Mean Time

                                               -7:00      Chile      EAS%sT                1982 Mar 14 3:00u # Easter Time

                                               -6:00      Chile     EAS%sT                2015 Apr 26 3:00u

                                               -5:00      Chile     EAST                     2016 May 15 3:00u

                                               -6:00      Chile      EAS%sT

Regards,
Carlos Huenchullán


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