Thought I should mention this since I found quite a few people stuck with this issue. To my knowledge, all Windows machines out there set to sync with time servers will portray the incorrect time as Windows does not have any knowledge of Pakistan's plans for Daylight Saving Time (DST). On Jun 01, at midnight, the clocks are to be moved forward 1 hour and the time will instead read Jun 01, 01:00 AM. On Nov 01, clocks are to be moved back an hour and the time will instead read Oct 31, 11:00 PM. There's a simple yet, not well known fix for this.
Simply download timezone.exe (unzip the file timezone.exe to c:\ or something) and run the command
The timezone.exe utility updates the relevant registry keys and you're good to go.
While I previously resorted to JS Shell and Venkman JS Debugger, I recently had the pleasure of using Firebug. I easily managed to find some performance bottlenecks in my Online Scrabble Clone, Yabble which should be a lot faster now thanks to some great profiling features. Yabble should be slightly faster and pending some other updates I'll be able to shave off another 20% or so from load time.