If you don't need a calendar anymore, you can permanently delete it or unsubscribe from it. If you think you might need the calendar later, you can hide it instead.
Hide a calendar temporarily
This is a good option for calendars that you only check occasionally. You can tell that your calendar is hidden if the square next to it isn't colored in.
- On your iPhone or iPad, open the Google Calendar app
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- In the top left, tap Menu
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- In your list of calendars, tap the colored box next to a calendar name.
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.Delete a calendar
To delete a calendar, open Google Calendar on a computer. Learn more.