noun, noun or participle which takes 'suru'
evening departure; night departure
Refers to departing in the evening or at night. Can be used as a noun or with する to mean 'to depart in the evening/night'.
夜出発の便を予約した。
I booked a flight with an evening departure.
私たちは夜出発する予定です。
We plan to depart at night.