The first message to the time zone mailing list on Kemerovo's time change was from Alexander Krivenyshev on 2009-10-13; it appears in the "europe" file. The message indicates that Kemerovo would switch to the "Novosibirsk Time Zone" which accounts for the abbreviation currently being used. --ado -----Original Message----- From: Petr Machata [mailto:pmachata@redhat.com] Sent: Thursday, July 07, 2011 1:57 To: tz@lecserver.nci.nih.gov Subject: Shouldn't Kemerovo oblast' use OMST/OMSST timezone abbreviation? ... given the time offset it could be either that, or NOVT that tzdata currently have. But Wikipedia lists Kemerovo under Omsk Time: http://en.wikipedia.org/wiki/Kemerovo_Oblast http://en.wikipedia.org/wiki/Omsk_Time In Russian: http://ru.wikipedia.org/wiki/%D0%9D%D0%BE%D0%B2%D0%BE%D0%BA%D1%83%D0%B7%D0%B... http://www.lenta.ru/news/2009/09/23/belt/ Thanks, Petr Machata