I have a user who recently traveled overseas with his laptop. When he returned, the time on his machine was off by an hour. Yesterday, I modified the registry to sync time to an external time source and the time has displayed correctly since. Today, however, he informed me his outlook calendar is still showing times that are ahead an hour. He says when he sends a meeting invitation, it goes out 1 hour ahead of when he plans for. The time zone setting is correct within outlook and adjust for daylight savings time is checked off. I have no other ideas. Help is appreciated.