release time

release time

i. A departure time restriction issued to a pilot by ATC (air traffic control) when necessary to separate departing aircraft from other traffic. The restriction may be conveyed either directly or relayed to the pilot.
ii. The time prior to which an aircraft should not be given further clearance.
iii. The time prior to which an aircraft should not proceed in case of radio failure.
iv. The time parachutists are expected to be released, given over the radio as an advisory to alert other aircraft.