The time you want to believe you can get to an event. Does not take into account “lost time” between activities and typically vastly underestimates durations of simple tasks.
Jon Duncan is planning to be at POOLgalo at 11:00 Hughey time. Jon Duncan has golf ending at 10:30, and it is a 15 minute drive to home and a 15 minute drive to POOLgalo. Therefore, Jon will be there at 11:00. However, 10:30 is a best-case ending time for golf. Drive times are at lease 20 minutes each way, and lost time like walking to the car, getting beer, changing clothes, etc. are not accounted for.
True Best case scenario: 12:30. Most likely 1:30