The Squarespace Calendar Block on a Squarespace website connects to the Squarespace Events Page (also known as the Events Collections).
Events pages can be used to schedule events up to two years in the future but they do not support recurring events.
You can manually duplicate events to create identical events without reentering the same information
Recurring events are not on the roadmap and, Squarespace have previously stated that recurring events are unlikely to ever be added to the website platform. As a workaround, they added the ability to duplicate events so you can create identical events without reentering the same information.
If you need recurring or repeating events then you'll need to look at third party solutions.
If you want users to be able to book events, including recurring events you can use Squarespace's scheduling platform (Acuity Scheduling) instead. Acuity does support recurring events.
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