It really depends on the venue. House of Blues shows on weekdays have to be done by 9:30. As a result, they start earlier (HINT HINT BOTTOM LOUNGE). Speaking of which, the Bottom Lounge is all sorts of fucked up with their schedule. Symphony X had to end at 10 when I saw them there, same with this show. However, Immortal was on a Tuesday and got out at midnight, but that was 18+ I believe. Kreator/Voivod got out at midnight as well but that was all ages on a Friday...
Bottom Lounge fucking confuses me