Note
As of August 20, 2024, Calendly no longer supports new connections to iCloud Calendar. Existing connections will continue to be supported, but new users or those who have not previously set up an iCloud Calendar connection will not be able to do so. To learn how to connect a Google, Office 365 or Outlook.com, or Exchange calendar, check out Connecting your calendar.
Issue
When you move a repeating event on an iCloud calendar, both the original and new times will block off time on your scheduling page.
For example, if you move a repeating meeting with a 9 a.m. start time to 9:30 a.m., both times will show as unavailable on your scheduling page.
Solution
Delete the repeating event that you moved, and create a new event for the new time instead. This will free up the original time.
If deleting the event does not work, try deleting the very first event in the repeating sequence. If neither options free up time, you may need to delete all repeating events in the sequence.