What do you mean by 24 o'clock tomorrow night?

It means twelve o'clock in the morning that night.

Zero is the beginning of a new day. According to the old almanac, 23 o'clock is the next day. 24: 00 not only refers to 65438+ 02 pm and 0: 00 am, but also refers to the interval time, such as 24: 00 a day.

24 o'clock is the end of the day, and zero is the beginning of a new day. This is the dividing line between today and tomorrow. This is a critical point, which means that 24 o'clock today is also 0 o'clock the next day.