Verified answer

I think a smart thing to do (other than asking some people online who might know), is to call the venue they're playing at, and ask them about it. I would think even with 2 bands playing before them, they wouldn't play for a total of 2 hours. But it's possible. So yeah, I'd try to contact the place they will be playing at, and ask them to give you a good guess for the time ST will be coming out on stage.

And like a couple other people who answered this, another good option would be to ask to take that night off, or ask if you can leave early. But, that obviously depends on the kind of job you have and if someone else can fill in for you, etc.

Is skipping work not an option? Sounds like a kick-*** show, I sure as hell wouldnt want to miss any of it :P

Worst case you'll miss the very beginning of their set, but most likely they won't be on yet.

ask to take off early