Ancient Chinese people reported time by the clock tower located in the city during the day.
Therefore, the time unit in the daytime is “clock”, the time is said to be a few minutes, and in the evening, the night patrolman hits the scorpion newspaper,
The ancients reported that it is equivalent to the current 19:00 to 21:00, the second is from 21 to 23, and the third is from 23 to 1 in the morning. When the “three is” is the child, it is midnight, so With the “late at night” argument.
