How do I show an additional time zone?

Do you have co-workers that are in a different time zone? Show the time from their time zone in your calendar to make it easier to schedule meetings with them.

Select Mail and Calendar Settings and in the Calendar section select Display an additional time zone. Select from the list of times zones, give the time zone a label, and save the change.

The additional time zone is shown in the Day or Week view of your calendar:
Week calendar view with coworker time zone next to your time zone