What this setting controls
Reservation time limits set the latest moment customers can submit a booking before class start — the inverse of "Booking open time". For example, setting 30 minutes means a 10:00 class can only be booked before 09:30. After that, customers see a closed-booking message.
How to configure
Go to Admin → Settings → Reservation → Reservation time. Use the hours-plus-minutes picker to set the cutoff. You can also tick the "after class" checkbox if you want to permit bookings even after class has started. Save.
