Departure time refers to the specific moment when a vehicle, such as a train, bus, or airplane, leaves a designated location. It is crucial for passengers to be aware of this time to ensure they arrive at the station or airport on time. Departure times are usually listed on schedules and tickets, helping travelers plan their journeys effectively. In the context of air travel, departure times can be affected by various factors, including weather conditions, air traffic, and operational delays. Airlines often provide updates to inform passengers of any changes, ensuring they have the latest information regarding their flight's departure time.