You're funny, Joe!
Okay, here's the deal on the Black Cat. The time listed is when the doors open (though there's a bar downstairs that you can go to first, opens at 8:00 on weekdays).
Rule of thumb for BC is that there's half an hour until the first band goes on, then you can generally count on an hour between bands. For instance:
8:30 doors open
9:00 first opening band
10:00 second opening band
11:00 headlining band
If anything, they may be running late based on that 'rule of thumb' schedule. But if I wanted to see a headliner, I'd be sure to be at the club about 10:45 if there are two bands on before them.