Hi! I've been looking at DST rules of Turkey, and I run into a few issues. 1) For 1986-2006, DST started at 01:00 local and ended at 02:00 local, with no exceptions. 2) 1994's lastSun was overridden with Mar 20, which was not reflected. Links in comments were inaccessible and some were not official. Here are official papers: http://www.resmigazete.gov.tr/arsiv/19032.pdf -- page 2 for 1986 http://www.resmigazete.gov.tr/arsiv/19400.pdf -- page 4 for 1987 http://www.resmigazete.gov.tr/arsiv/19752.pdf -- page 15 for 1988 http://www.resmigazete.gov.tr/arsiv/20102.pdf -- page 6 for 1989 http://www.resmigazete.gov.tr/arsiv/20464.pdf -- page 1 for 1990 - 1992 http://www.resmigazete.gov.tr/arsiv/21531.pdf -- page 15 for 1993 - 1995 http://www.resmigazete.gov.tr/arsiv/21879.pdf -- page 1 for overriding 1994 http://www.resmigazete.gov.tr/arsiv/22588.pdf -- page 1 for 1996, 1997 http://www.resmigazete.gov.tr/arsiv/23286.pdf -- page 10 for 1998 - 2000 http://www.resmigazete.gov.tr/eskiler/2001/03/20010324.htm#2 -- for 2001 http://www.resmigazete.gov.tr/eskiler/2002/03/20020316.htm#2 -- for 2002 - 2006 Sincerely, Kivanc Yazan