When was Yin Shi, the son of Shi Mao, and the clown? ...

Zi Shi refers to 23: 00 to 1, Chou Shi refers to 0/kloc-0 to 03: 00, Yin Shi refers to 03: 00 to 05: 00, and Shi Mao refers to 05: 00 to 07: 00.

Minutes and hours refer to the period from 23 to 1. Clown refers to the period from 1 to 3 o'clock. Yin Shi refers to the period from 3 o'clock to 5 o'clock. Shi Mao refers to the period from 5 o'clock to 7 o'clock. Chen Shi refers to the period from 7: 00 to 9: 00. Shi Si refers to the time from 9: 00 to 1 1.

Noon refers to the period from 1 1 to 13. The last hour refers to the period from 13 to 15. The application time refers to the period from 15 to 17. Unitary time refers to the period from 17 to 19. Time refers to the period from 19 to 2 1. The sea time refers to the period from 2 1 to 23: 00.

Ancient timing:

Timekeeping (punctuality) stems from the need to arrange work and life. In the history of ancient China, there were mainly sixteen-hour system, ten-hour system, hundred-hour system, twelve-hour system and sixty-point method introduced with Buddhism.

The twelve-hour system can also be expressed by twelve earthly branches, with the hours from midnight to 1 being the hour, the hours from one to three being the ugly hour, and the hours from three to five being the recursive, that is, twelve hours: Zi, Ugly, Yin, Mao, Chen, Si, Noon, Wei, Shen, You, Xu, Hai.