This might be better suited to Band Management, but anyways. There was some discussion on my local musicians board about how long do cover bands play each night. I became curious, so in your part of the woods, how long does typical rock cover group stay on the stage? Here the standard seems to be two or three sets lasting 45-60 minutes each, plus couple encore songs if the audience likes it - usual style is to demand encore even from poor new acts, so in that way I think my local scene is nice. Oldies dance bands might do 5 or 6 times the 45min, but that's a bit different case. Also, bands playing original stuff typically play one 1h 15min set, plus the encores.