In order to set a calendar to a recurring task, click on the “Calendar” dropdown inside the Recurring Task dialog, select the desired calendar and press “OK”.

Note: If you will select the “Night Shift” calendar, a reschedule prompt dialog will appear that will notify you that the tasks will occur during nonworking times and Project Plan 365 can reschedule the tasks to occur at the first available working time. If you want to reschedule the tasks occurrence(s) click “Yes”.