tzdata2012c/asia no location comment except # Uzbekistan for Asia/Samarkand Asia/Tashkent Also no other comment, telling where the Uzbekistan info comes from. tzdata2012c/zone.tab Asia/Samarkand west Uzbekistan Asia/Tashkent east Uzbekistan No definition for "West Uzbekistan" or "East Uzbekistan" found. Trying to improve: Asia/Samarkand per definition includes Samarkand Province, where Samarkand is located. "west Uzbekistan" if only contrasted by "east Uzbekistan" and using the map at http://en.wikipedia.org/wiki/Provinces_of_Uzbekistan likely additionally refers to Karakalpakstan, Xorazm, Buxoro, Navoiy Uncertain remain Jizzax (north east), Qashqadaryo (south) and Surxondaryo (south). But since the two southern country subdivisions, if looked at as one unit, border Samarkand, they may be included in Asia/Samarkand. This leaves five provinces, with Jizzax six, for the Asia/Tashkent. If that is the case zone.tab could be improve by Asia/Tashkent east Uzbekistan (Andijon, Fergana, Namangan, Tashkent, Sirdaryo [, Jizzax]) -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com/