Can't remember. Maybe a couple of hours? At one time, that is. Longest gig was around five hours, I think. No, wait, I remember football parties when we had to play a set before the game, then sit through the game and then play a couple of hours afterwards (yuck!). So, maybe 6-7 hours, but it wasn't all playing, though.
2001 American Series Jazz Bass / 1987 Jazz Bass Special
Markbass Little Mark III / dual 151P cabs / 121H combo