What is meant by sunset time at an airport?

Sunset time at an airport refers specifically to the time when the sun is expected to set. This timing is important for various operational reasons, including safety, as many flight operations, including takeoffs and landings, are influenced by daylight conditions. Knowing the sunset time helps ramp agents and other airport personnel plan for the transition from daylight to nighttime operations, ensuring that all activities that rely on natural light can be completed in a timely manner.

The context of the question clarifies that while there are several critical timings and deadlines associated with airport operations, sunset time is distinct from operational hours or specific deadlines related to cargo management. This choice emphasizes the natural cycle of day and night rather than operational restrictions or schedules.