Configuring Outlook for Multiple Time Zones
If you frequently travel to locations outside of your usual time zone, you will find it helpful to change the time zone on your computer. You can do this from Windows or from Outlook. When you change the time zone, information such as the receipt time of e-mail messages and appointment times changes to match the new time zone, and if you display the clock in the Windows taskbar notification area, the time shown there also changes.
To change the time zone:
On the Tools menu, click Options. Then on the Preferences tab of the Options dialog box, click Calendar Options.
In the Advanced Options area of the Calendar Options dialog box, click Time Zone.
In the Time Zone dialog box, click the Time zone arrow, and ...