There is also no commute in his calendar. Thursday and Friday morning is free?
Might be COVID-19 calendar.
I believe Marc lives in Palo Alto so 15-20 minutes of commute on surface streets to a16z on Sand Hill Road. Commute could happen before scheduled items.
It could also be his commute happens during UP before meetings on the calendar start. He has FREE on many mornings before UP so UP can't directly mean wake up, that 30 minutes could be the commute.
* job of a very good assistant: know and estimate commute time to anywhere in the world and reschedule better than any staffing startup AI.