How many nights is two nights?

One night means staying in a hotel room for one night. A two-day room is called two nights.

Generally, hotels use this to indicate the check-in date and check-out date, and then calculate the number of overnight stays. The calculation unit of hotel room occupancy rate in a certain period of time. Because there are late check-in, early check-out, hourly rooms and so on. , it is simply the number of rooms rented per night.