5 minutes once you're on the bus, and they run continuously and often. Waiting time in the parking lot is usually very brief. 5- 10 minutes.
But either way ... if early or late ... it is of no real consequence. Don't sweat or fret over that one. They take you when you get there and have bussed ma and pa and grandma and high-5ed the lil bro ... and there's nothing more to say or do but pass through that door of Alumni Hall. Until you come out of Bancroft that eve, dressed in white works, looking for all the world, a prould Plebe in the United States Naval Academy Class of 2015!
And when those F-18s buzz Bancroft, the class and the crowd? One of those grand moments in life when you know ... THIS IS THE REAL DEAL! Hearts beat fast, tears trickle down dad's cheek ...