Current: tzdata2012c\zone.tab "Moscow+05 - Lake Baikal" tzdata2012c\europe # From Oscar van Vlijmen (2001-08-25): [This region consists of] # Respublika Buryatiya, Irkutskaya oblast', # Ust'-Ordynskij Buryatskij avtonomnyj okrug. http://en.wikipedia.org/wiki/Ust-Orda_Buryat_Okrug "Ust-Orda Buryatia, is an administrative division of Irkutsk Oblast" " It was a federal subject of Russia (an autonomous okrug of Irkutsk Oblast) from 1993 to January 1, 2008, when it merged with Irkutsk Oblast (it also had autonomous okrug status from September 26, 1937 to 1993" Propose: zone.tab "Moscow+05 - Irkutsk, Buryatia" europe Add a notice of merge. Reasoning: "Irkutsk, Buryatia" refers to federal subjects (1st level country subdivisions), while "Lake Baikal" to a lake only. But the zone covers the area of the two federal subjects. Do it similar to the 2nd level country subdivision comments for these US zones: America/Kentucky/Monticello Eastern Time - Kentucky - Wayne County America/Indiana/Indianapolis Eastern Time - Indiana - most locations America/Indiana/Vincennes Eastern Time - Indiana - Daviess, Dubois, Knox & Martin Counties America/Indiana/Winamac Eastern Time - Indiana - Pulaski County America/Indiana/Marengo Eastern Time - Indiana - Crawford County America/Indiana/Petersburg Eastern Time - Indiana - Pike County America/Indiana/Vevay Eastern Time - Indiana - Switzerland County -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com/