MISCELLANEOUS TIX Bay Area/Half-Price Tickets On Powell Street, betw. Geary St./Post St., Union Square. Sun-Thur 9 am-5 pm, F-Sat 9 am-6 pm; all half-price tickets go on sale at 11 am. Day-of-performance and week-of-performance half-price tickets are available for many theatre, dance, and music events. Sunday and Monday events are available on Saturday. Full-price tickets through Ticketmaster are also available.