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Next August 21, Sunday, at 00:00 will be necessary to advance clocks in 1 hour. We need a patch for tzdata primarily for Red Hat Enterprise 5 and 6. More info: http://latercera.com/noticia/nacional/2011/03/680-354477-9-hinzpeter-confirma-retraso-en-cambio-de-hora-de-invierno-y-destaca-beneficios.shtml http://www.infoweek.biz/la/2011/03/nueva-informacion-sobre-el-cambio-de-hora-en-chile-sepa-que-hacer-2/ http://www.fayerwayer.com/2011/08/chile-el-horario-de-verano-se-adelanta-para-el-20-de-agosto/?comments_page=all http://www.microsoft.com/chile/cambiodehora/antecedentes-hogar.aspx http://www.horaoficial.cl/ http://www.cuandopasa.com/index.php?v=v1851h
This change has been addressed in the following update: http://rhn.redhat.com/errata/RHEA-2011-0493.html The change is not listed among the changes, but the version that we ship in that update is 2011g, which should contain this change. In particular, this is what I see in RHEL 5 mock: > zdump -v America/Santiago | grep 2011 America/Santiago Sun May 8 02:59:59 2011 UTC = Sat May 7 23:59:59 2011 CLST isdst=1 gmtoff=-10800 America/Santiago Sun May 8 03:00:00 2011 UTC = Sat May 7 23:00:00 2011 CLT isdst=0 gmtoff=-14400 America/Santiago Sun Aug 21 03:59:59 2011 UTC = Sat Aug 20 23:59:59 2011 CLT isdst=0 gmtoff=-14400 America/Santiago Sun Aug 21 04:00:00 2011 UTC = Sun Aug 21 01:00:00 2011 CLST isdst=1 gmtoff=-10800 Please make sure that your system is updated.
This is what we currently ship: $ ~/src/tzdiff/zidiff.py usr-2011n-2/share/zoneinfo/America/Santiago | grep 2011 Introduced CLT (UTC-4, std) 8th (2nd Sun) May 2011 03:00:00 Introduced CLST (UTC-3, dst) 21st (3rd Sun) Aug 2011 04:00:00