According to the articles linked below, Turkey will change into summer time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27. This change is due to a nationwide exam on 27th. http://www.worldbulletin.net/?aType=haber&ArticleID=70872 Turkish: http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373 -- Gökdeniz Karadağ