It depends. The urgent care here runs out of spots, one can get a time early in the day. When I went on at 6AM yesterday, there were still 10 spots left. I grabbed 1:40. I left home but got a text they were an hour late. It was a 20 minute drive home, so I sat in the car posting. The new time came, I got a text they were a half hour late from the revised time. More waiting. Then I got the, you can come in text, and it was still 45 minutes.
But I had a spot. As I noted, people came in during the time I was inside waiting trying to be walk-ins, which they allow. They were sent away. No place in Bloomington takes pure walk-in. Your kid falls at school and needs stitches at 3:30, you are way too late to snag a time. The ER is it. Or schedule for the next day.