Well, that depends on the show. Early shows are 6pm unless otherwise noted. Later shows are typically 9pm unless otherwise noted. The doors time (or entry time) for your show is listed on the ticket.
Please note: Sometimes we have one single show for the entire night, and sometimes we have multiple separately ticketed shows. Your ticket allows you entry to your show but does not cover the whole night if there is more than one performance. We typically clear the room after the first show before we let people in for the second. If you have purchased tickets for both shows, then you will not be asked to leave and can keep your seat.