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Let's say that you need to add two different time values together to get a total. Or, you need to subtract one time value from another to get the total time spent working on a project. As you'll see in the sections below, Excel makes it easy to add or subtract time. Windows Web.

Set the time zone for an event. When you create a new meeting or appointment, Outlook uses the default time zone in your Outlook preferences for Calendar. If you want, you can specify a different time zone for an event as you are creating it.