Description of problem:
There is a general election at Turkey on november 1, 2015 so Daylight Saving Time is going to apply november 8, 2015 not on october 25, 2015.
See the link below.
Version-Release number of selected component (if applicable):
# cat /etc/sysconfig/clock
# The time zone of the system is defined by the contents of /etc/localtime.
# This file is only for evaluation by system-config-date, do not rely on its
# contents elsewhere.
Country name: Turkey
Tue Sep 22 15:03:01 EEST 2015