How long should I wait in a Zoom waiting room for an interview?

Hey all! I have a Zoom interview today with one of my programs. Scheduling has been a little hectic because we’re in New England and got hit with that giant blizzard last week and had to be rescheduled.

The email I received said that interviews would be at the same time the following week (this week) unless you hear otherwise, which for me was Friday (today) at noon.

Last night I received the Zoom link and it said 10am, which seems like “hearing otherwise” to me, so I prepared for 10am.

I’ve been in the waiting room for 40 minutes now. I did email them to confirm the time but haven’t heard back yet. How long should I wait before logging out and coming back at 12pm? I don’t want to lose this opportunity.