Follow the steps at your own pace

1. Check the business time zone in settings, then open working hours and set working days and times. Availability uses this business time zone, not the visitor’s device time zone.
2. For a holiday, day off or break, add a closure for the date or time range.
3. Review affected appointments and choose whether to save only the change or continue to appointment cancellation.
4. If you choose cancellation, review the summary, recipient scope and available coverage before explicitly confirming.
5. Check the result report and calendar availability. Reopen the report from cancellation history in the working-hours screen.