Edit the Event Reminder
4. Try It: Find the Event Details
Select an Event: Microsoft Excel 2013 Training.

What Do You See? When you select an Event, the Details should be available in a balloon.

And Try This: Edit the Event Details
The Event Reminder is a little prompt that can help you keep on time. The default time is 15 minutes. Say it takes at least 90 minutes to drive downtown on a good day. You can edit the Event Reminder if you wish.

Do This: Edit the Event Reminder
Go to the Event Details.
Click on Edit.
The Event should open.
Change the Reminder: 2 hours.
Click Save to close the Event.

That works...

Calendar->Event Details->Edit