A timed session block is a discrete time slot with a defined start time, duration, and maximum capacity that guests can book as a unit. Unlike open-ended appointments, timed session blocks enforce hard start times and capacity limits. This matters for escape rooms, guided tours, and any experience where late arrivals or overbooking create operational problems. Booking software built for timed session blocks automatically prevents double-booking, enforces minimum and maximum group sizes, and manages buffer time between sessions.