What’s the Earliest and Latest the concert started for a Non SP Show?

I Am 17 and I’m Going to the Show on Monday in Charlotte, I just figured out today that I have to take a Unskipable Class on Monday afternoon and won’t be Won’t until 7:30 the venue is about 30 minutes away and I would get there about 8:00, do you think I would end up missing them? I fucking devastated cause I wanted to see rancid equally as much and will def end up missing them and paid a shit tone for resell tickets so does anybody have any help?