Manually Setting Daylight Saving Time for Pakistan (GMT +05:00 Islamabad, Karachi)

As per Microsoft article on "How to configure daylight saving time for Microsoft Windows operating systems" [http://support.microsoft.com/kb/914387] no information has been confirmed by Pakistani government regarding the DST

This is the reason you won't see "Automatically adjust clock for daylight saving changes" check box on GMT +05:00 Islamabad, Karachi zone.

This blog will help you to update Daylight saving time for GMT +05:00 Islamabad, Karachi zone, Pakistan.

The easiest method is to download "Time Zone Editor" TZEdit.exe from MS site [http://download.microsoft.com/download/5/8/a/58a208b7-7dc7-4bc7-8357-28e29cdac52f/tzedit.exe] and Edit settings for GMT +05:00 Islamabad, Karachi as shown in following images.