We’re starting to see complaints about appointment times suddenly being off an hour. When the problem only exists for appointments in late October and early November (and in March), it generally means you don’t have the time zone update installed. Check for updates at Microsoft Update and see http://support.microsoft.com/gp/cp_dst for more info on worldwide updates. (You can find the latest time zone update at http://support.microsoft.com/kb/951072/.)

If you need to adjust appointment times, there is a time zone move tool you can use - it works in all versions of Outlook. Get it from http://www.microsoft.com/downloads/details.aspx?familyid=E343A233-B9C8-4652-9DD8-AE0F1AF62568

If the time zone move tool doesn’t meet your needs, you can export to a CSV or Excel format when the appointment times are correct, fix the computer so the time zone is correct then import. Note that exporting will break all recurring events.