time to leave; departure time
Refers to the appropriate or scheduled time to depart from a place.
そろそろ出時だ。
It's about time to leave.
出時を過ぎると、次の電車まで一時間待つことになる。
If you miss the departure time, you'll have to wait an hour for the next train.
Compound of 出 (で, 'going out') and 時 (とき, 'time'), with rendaku voicing of とき to どき.