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.
Go to Calendar settings and select the option 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:
As you create a new calendar invitation, you see the co-worker time next to your time: