noun
calendar day; day on the calendar
Refers to a full 24-hour day as marked on a calendar, often used in formal, legal, or scheduling contexts. The gloss 'time' likely refers to the concept of a day as a unit of time.
暦日で計算すると、締め切りまであと三日です。
Calculated in calendar days, the deadline is three days away.
この契約では、暦日で30日以内に支払う必要があります。
Under this contract, payment must be made within 30 calendar days.