Here's what it says on the TDF website:
TKTS ® Lower Manhattan Theatre Center at South Street Seaport ( the corner of Front and John Streets, the rear of the Resnick/Prudential Building at 199 Water Street )
Hours:
Monday - Friday 11:00am to 6:00pm
Wednesday matinee tickets are available on Tuesday ONLY
Saturday 11:00am to 7:00pm Saturday matinee tickets are available on Friday
Sunday matinee tickets will be sold on Saturday from 11am to 4pm. Please note that there are no tickets for Saturday matinee performances available on Saturday
Sunday: CLOSED UNTIL APRIL 9, 2006
There are no full price tickets sold at any TKTS Booth.
Easily reachable by subway, you can take the J,M,Z, 2,3,4,5 to Fulton Street or the A,C to Broadway-Nassau. The M15 bus travels down Second Avenue to the Seaport.
"There was this one time an alarm went off - it was in the middle of '24.' That's just wrong. Everyone knows everyone was watching '24' at that time."
--NYU student quoted in the Washington Square News about students ignoring the frequent fire alarms in dorms