The official document is located here - it is in Turkish, but still somewhat intelligible (for non-Turkish speaking people): http://rega.basbakanlik.gov.tr/eskiler/2007/03/20070307-7.htm By searching for a phrase on that page, I was able to locate the following seemingly official document (on a non-government server though) describing dates between 2002 and 2006: http://www.alomaliye.com/bkk_2002_3769.htm Best regards, Steffen

Until 2006, Turkey seemed to start/end DST at 1:00 standard time, as reported earlier.

Starting 2007 though, it seems that they are adopting EU's 1:00 UTC start/end time, according to the following page (2007-03-07):

http://www.ntvmsnbc.com/news/402029.asp

"Turkey is to shift to daylight savings time on the last Sunday in March, with clocks being moved forward one hour at 3:00 am on March 25. Summer time will end on October 28, with clocks being put back one hour at 4.00 am."

The old 1:00s was used last time in October 2006 as the following news article suggest:

http://www.hurriyet.com.tr/english/5305826.asp "The day-light saving implementation will end at 2.00 a.m. on October 29th, 2006 as the clocks will be set back by one hour..."

Steffen Thorsen <straen@thorsen.priv.no> writes:

Starting 2007 though, it seems that they are adopting EU's 1:00 UTC start/end time, according to the following page (2007-03-07):

Thanks much for the heads-up; I'll put that in my next proposed patch.