It starts at 08, you have a 1 hour welcome session. You're split into two groups, one does MMI first, one does the SJT first. After you go through both rotations you have a meeting with current med students for ~1 hour, then a final brief from the diversity office, and another admissions person. To be honest the actual interview stuff was very intense compared to other interviews I've had, but the day overall was very relaxed and you get a lot of breaks, so it isn't bad.
Also, they will tell you that it's "lunch with the med students" and I took this to mean I should bring food to the video call. DONT DO THIS!! I was the only person with food and kept trying to sneak bites when I thought nobody was looking, just eat before this meeting, they gave us like a 30 min break.