What does ETD stand for in aviation terminology?

ETD in aviation terminology stands for "Estimated Time of Departure." This term is commonly used in flight operations to indicate the projected time at which an aircraft is expected to depart from the airport. It is a critical piece of information for both airline staff and passengers, as it helps in managing schedules and facilitating smooth airport operations. Knowing the estimated time allows passengers to plan their travel itineraries accordingly, and it also helps ground crew prepare for the aircraft's departure.

While other terms regarding time and travel do exist, "Estimated Time of Departure" specifically refers to the time aspect of a flight's scheduled departure, which is essential for accurate flight information and coordination in the aviation industry.