You may need to clear all of the events from a day on the calendar for a holiday or other occasions.
Instead of manually deleting individual events you, follow these steps to delete events for an entire day in one step.
1. Go to the Calendar's Month view
2. Find the date that from which you want to delete all events.
3. Hover your cursor over the triangle next to the date.
4. Click the "Delete Events" link.
5. Confirm that you want to delete the events for that date.
Once completed all of the events for that date will be deleted.