How is twelve o'clock divided?

Sub-hour: from 23: 00 to 0 1 hour Beijing time.

Ugly time: 0 1: 00 to 03: 00 Beijing time.

Yin Shi: From 3: 00 to 5: 00 Beijing time.

Shi Mao: From 5: 00 to 7: 00 Beijing time.

Chen Shi: From 7: 00 to 9: 00 Beijing time.

Time: 09: 00 to 1 1 Beijing time.

Noon: From Beijing time 1 1 to 13.

Not yet: from Beijing time 13 to 15.

Application time: Beijing time 15 to 17.

Youshi: Beijing time 17 to 19.

Time: Beijing time 19: 00 to 2 1: 00.

Shihai: 2 1 00 to 23: 00 Beijing time.

Extended data:

In ancient China, people used the method of "dripping water from a copper pot" to measure time, and divided a day and night into twelve hours, namely, Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai, which correspond to today's twenty-four hours. From eleven o'clock to midnight, from one to three is ugly, from three to five is Yin Shi, and so on.

One hour in ancient times is equivalent to two hours today. Therefore, when clocks and watches were first introduced into China, some people called one hour "striking time" and one hour in the new time "hour". Later, with the popularity of clocks and watches, the word "big hour" disappeared, but "hour" has been used to this day.