noun
scheduled date; expected date
General term for a planned or anticipated date for an event, appointment, or deadline.
会議の予定日は来週の金曜日です。
The scheduled date for the meeting is next Friday.
工事完了の予定日はまだ決まっていません。
The expected completion date for the construction has not been decided yet.
noun
due date; expected delivery date
Abbreviation of 出産予定日, specifically referring to the expected date of childbirth.
See also: 出産予定日
予定日は来月の初めです。
The due date is early next month.
予定日を過ぎても赤ちゃん
The baby hasn't been born even though the due date has passed.
Deadline or time limit, often for tasks or submissions, not necessarily a scheduled calendar date.
Compound of 予定 (schedule, plan) and 日 (day). The childbirth sense is a shortening of 出産予定日.