In aviation, "night" is defined as the period from "the end of evening civil twilight to the beginning of morning civil twilight".
[1]: 19 [2] In EASA states and the United Kingdom, the requirements for a night rating for aeroplanes are:[1]: FCL.810 [3] Different rules apply for helicopters and balloons.
The night rating is a prerequisite for the issue of a Commercial Pilot Licence.
[4] In Australia, the qualification is known as a "Night VFR rating", and requires 10 hours of flight time at night in an aircraft or simulator, including at least 5 hours of cross-country flight at night in an aircraft.
Night training is a prerequisite for the Private Pilot Licence.