Scenario: ages ago you created an event, and now you see there are only a few days left but nobody has booked onto it yet. Yikes!
You are now asking yourself: "Should I cancel it? or postpone it?"
If you want to postpone it just edit the event and check that there are still no bookings, and you can move the date and time to a new date and time if you like.
If there are no bookings, you can edit the date and time:
If there are bookings, you can't edit the date and time:
If you want to cancel the event instead, read this: https://help.student-crm.com/en/articles/3811327-how-to-cancel-an-event-manager-event