Answer:
1 hour after sunset to 1 hour before sunrise.
Explanation:
The three departures and arrivals that are required to go about as pilot in direction around evening time must be finished during the timeframe from 1 hour after nightfall to 1 hour before dawn.
To go about as pilot in order of an airplane conveying travelers, the pilot probably made three departures and three arrivals inside the previous 90 days in an airplane of a similar classification, class, and type, if a sort rating is required
