What do the departure and landing times of Chang Fei quasi-flights represent?

Estimated takeoff and landing time. In the flight dynamic page of Fei Changzhun, the flight take-off and landing time represents the estimated take-off and landing time of the flight plan, that is, the estimated flight time. These times are usually estimated according to the flight plan, taking into account the cruising speed, flying altitude, flight route and weather of the aircraft.