For Mac users who use BootCamp and run Windows, you may find that the clock always wrong after getting back to Mac OS X from Windows. To fix it you need to pop up the Date & Time Settings and update the information from the internet.

TUAW explains the way to fix this using Apple Script. Compile the following script and put it in Applications folder, then set it to Login items in System Preferences. The clock will be set to the right time everytime you used Windows and boot in Mac OS X.

Code:

tell application “System Preferences”
reveal pane “Date & Time”
delay 5
quit
end tell

[via TUAW]