Turkey is breaking step with Europe and keeping summer time through the winter. Instead of turning clocks back an hour as they do in the European Union in the autumn, Turkey will keep the clocks as they are and effectively change the country’s time zone. You have to implement new tzdata-2016g package on your systems to accommodate new decision.
You can install from Red Hat yum repository if you use Red Hat system. (Red Hat, Centos, Oracle Linux)
https://access.redhat.com/errata/RHEA-2016:1982
yum install tzdata*2016g*
Both tzdata-java-2016g and tzdata-2016g package installation will be useful.
Check New Adjustment
You check new time zone status with zdump command like below.
zdump -c 2016,2017 -v “Europe/Istanbul”
You have not to see Oct 30 date and gmtoff value 7200. You have to see gmtoff value 10800.