How was the ancient time divided?

In ancient China, the method of "dripping water from a copper pot" was used to measure time, and one day and night were divided into twelve hours, namely, Zi, Ugly, Yin, Mao, Chen, Si, Noon, Wei, Shen, You, Xu and Hai. Each cycle is called one hour, and now it is two hours.

Twelve o'clock is named after the earthly branch, starting from midnight, and it is midnight at midnight, and noon at noon. ?

The traditional time unit in China was used in the Western Zhou Dynasty. In the Han Dynasty, it was named Midnight, Crow, Pingdan, Sunrise, Food Time, Horn, Japan-China, Sundial, Sunset, Dusk and Man's Decision. It is also expressed by the twelve earthly branches, and it is the child time from 23: 00 to 1 at midnight, the ugly time from 1 to 3: 00, and the Yin Shi time from 3: 00 to 5: 00, which are recursive in turn.

Extended data:

From eleven to midnight, it's ugly from one to three, Yin Shi from three to five, and so on. One hour in ancient times is equivalent to two hours today. So when clocks and watches were first introduced into China, some people called an hour "Da Shi" and an hour in the new time "Shi".

Later, with the popularity of clocks and watches, the word "big hour" disappeared, but "hour" has been used to this day.

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