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It 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.
Time health song: get up at dawn and go downstairs to drink a cup of boiled water; It's so light to go to the toilet regularly, and the morning exercise in gross time is the most pleasant; When I was reading and playing with my young grandchildren, when I was a chef, I became a kitchen master. Drink less wine at noon and take a lunch break before noon; Shen Shi reads newspapers and writes poems, and watches clouds outdoors; CCTV news has arrived, close your eyes and listen to rest; Wash your face in the middle of the stone sea and enter the painting picture in your childhood dream; When you are ugly, you wake up, you bleed, and you bleed. Blood flow, quiet inside, sleep till the rooster crows the dawn.
References:
Baidu encyclopedia-time