Apple Store battery replacement appointment at 7:10 PM - same day?

Hi everyone,

I have a Genius Bar appointment at an Apple Store in London at 7:10 PM for an iPhone 15 Pro Max battery replacement. The store closes at 9:00 PM.

Has anyone had a battery replacement with such a late appointment? Were they able to replace it the same evening, or did you have to leave the phone overnight and pick it up the next day?

I’d appreciate hearing about your experiences. Thanks!