Calendar - change from 24 hr to AM & PM

richardesigner wrote:

How do I change the times in 'Calendar' from 24 hour to am/pm?

If I had to guess, the times in Calendar are the same as time on your computer, since that's what Calendar uses for reminders/events/etc. Is your system clock 24 hrs or am/pm? You would change this by going to System Preferences --> Language & Region, and either check or uncheck "Time Format: 24-hour time."

It should follow the Date & Time settings in System Preferences>Date & Time>Clock.

It can be set in either location. 😎