It depends on the program. Most non-camp productions only call actors for the scenes they're in, so your child won't necessarily be at every rehearsal.
Summer camps run Monday through Friday, 9am to 4pm, for either one week (drama workshops) or two weeks (musicals), with performances on the second Saturday.
School-year productions typically rehearse two weekday evenings and one weekend day over 5 to 8 weeks, depending on the show.
Mainstage productions are the biggest commitment, running about six to eight weeks with evening and weekend rehearsals, plus a full week of tech and dress rehearsals before opening.
Each program page lists its specific rehearsal and performance schedule, so you can check for conflicts before registering.
