Planning FPs for shows

If I’m using a FP for a show with a set start-time, what time window will it have? For instance, if I wanted to see the 10:30 For the First Time In Forever show, would I be able to have a 9:05-10:05 FP, and then have one for the show that starts at 10:05?

If I remember right FPs for shows are usually about 15-20 minutes? So got the 10:00 FOLK your FPs would be from 9:30-9:50?