I've attached proposed changes to reflect past Altai/Tomsk time zone shifts; the changes appear below with mangled tabs. Thanks to Tobias Conradi for providing information. --ado diff -r -c old/europe new/europe *** old/europe 2012-05-02 17:54:22.581472200 -0400 --- new/europe 2012-05-02 18:10:54.852205400 -0400 *************** *** 1,5 **** # <pre> ! # @(#)europe 8.41 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)europe 8.42 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 2164,2182 **** 4:00 Russia SVE%sT 1992 Jan 19 2:00s 5:00 Russia YEK%sT 2011 Mar 27 2:00s 6:00 - YEKT # Yekaterinburg Time ! # ! # From Oscar van Vlijmen (2001-08-25): [This region consists of] ! # Respublika Altaj, Altajskij kraj, Omskaya oblast'. Zone Asia/Omsk 4:53:36 - LMT 1919 Nov 14 5:00 - OMST 1930 Jun 21 # Omsk TIme 6:00 Russia OMS%sT 1991 Mar 31 2:00s 5:00 Russia OMS%sT 1992 Jan 19 2:00s 6:00 Russia OMS%sT 2011 Mar 27 2:00s 7:00 - OMST ! # ! # From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's ! # not clear when it switched from +7 to +6. ! # Novosibirskaya oblast', Tomskaya oblast'. Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time 7:00 Russia NOV%sT 1991 Mar 31 2:00s --- 2164,2196 ---- 4:00 Russia SVE%sT 1992 Jan 19 2:00s 5:00 Russia YEK%sT 2011 Mar 27 2:00s 6:00 - YEKT # Yekaterinburg Time ! ! # From Tobias Conradi (2011-09-17): ! # I know that Wikipedia is not reliable, still I would like to start with: ! # <a href=" http://ru.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81%D0%BE%D0%B2%D1%8B%D0%B5_%D0%... "> ! # http://ru.wikipedia.org/wiki/%D0%A7%D0%B0%D1%81%D0%BE%D0%B2%D1%8B%D0%B5_%D0%... ! # </a> ! ! # From Arthur David Olson (2012-05-02): ! # According to ! # <a href=" http://translate.google.com/translate?hl=en&sl=ru&u=http://ru.wikipedia.org/... "> ! # http://translate.google.com/translate?hl=en&sl=ru&u=http://ru.wikipedia.org/... ! # </a>: "...the regions of Western Siberia, ! # formerly stationed in the area of MSK+4, ! # switched to the time of MSK+3, joining the Omsk Time: ! # Novosibirsk Region May 23, 1993 at 00:00, ! # Altai and the Altai Republic May 28, 1995 at 4:00 am, ! # Tomsk Region May 1, 2002 at 3:00 am." ! ! # Omskaya oblast'. Zone Asia/Omsk 4:53:36 - LMT 1919 Nov 14 5:00 - OMST 1930 Jun 21 # Omsk TIme 6:00 Russia OMS%sT 1991 Mar 31 2:00s 5:00 Russia OMS%sT 1992 Jan 19 2:00s 6:00 Russia OMS%sT 2011 Mar 27 2:00s 7:00 - OMST ! ! # Novosibirskaya oblast'. Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time 7:00 Russia NOV%sT 1991 Mar 31 2:00s *************** *** 2185,2190 **** --- 2199,2222 ---- 6:00 Russia NOV%sT 2011 Mar 27 2:00s 7:00 - NOVT + # Respublika Altaj, Altajskij kraj. + Zone Asia/Barnaul 5:35:00 - LMT 1919 Nov 14 + 6:00 - BART 1930 Jun 21 # Barnaul Time + 7:00 Russia BAR%sT 1991 Mar 31 2:00s + 6:00 Russia BAR%sT 1992 Jan 19 2:00s + 7:00 Russia BAR%sT 1995 May 28 4:00s # wikipedia.ru + 6:00 Russia OMS%sT 2011 Mar 27 2:00s + 7:00 - OMST + + # Tomskaya oblast'. + Zone Asia/Tomsk 5:39:52 - LMT 1919 Dec 14 6:00 + 6:00 - TOMT 1930 Jun 21 # Tomsk Time + 7:00 Russia TOM%sT 1991 Mar 31 2:00s + 6:00 Russia TOM%sT 1992 Jan 19 2:00s + 7:00 Russia TOM%sT 2002 May 1 3:00s # wikipedia.ru + 6:00 Russia OMS%sT 2011 Mar 27 2:00s + 7:00 - OMST + # From Alexander Krivenyshev (2009-10-13): # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on # March 28, 2010: diff -r -c old/zone.tab new/zone.tab *** old/zone.tab 2012-05-02 17:54:34.515493100 -0400 --- new/zone.tab 2012-05-02 17:53:52.504619400 -0400 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.55 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.56 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 338,343 **** --- 338,345 ---- RU +5651+06036 Asia/Yekaterinburg Moscow+02 - Urals RU +5500+07324 Asia/Omsk Moscow+03 - west Siberia RU +5502+08255 Asia/Novosibirsk Moscow+03 - Novosibirsk + RU +5322+08345 Asia/Barnaul Moscow+03 - Altai + RU +5800+08458 Asia/Tomsk Moscow+03 - Tomsk RU +5345+08707 Asia/Novokuznetsk Moscow+03 - Novokuznetsk RU +5601+09250 Asia/Krasnoyarsk Moscow+04 - Yenisei River RU +5216+10420 Asia/Irkutsk Moscow+05 - Lake Baikal