My parents are both pilots. The numbers are just my estimates from having flown with them a bunch. Maybe my numbers are a little high, but I think I'd stand by them.

There's always a bunch of dealing with cranking open the hanger door with the winch, dragging the plane out, checking that there is no water in the fuel (both tanks), transferring the stuff you're bringing with you from the car to the plane, getting into the seatbelt, plugging in the headsets and checking that they're all working, talking to the tower, taxiing out to the runway, waiting for a plane or two to take off, and then actually taking off.

Anyway, have fun flying.