Ugly day, ugly day, ugly day, ugly day, ugly day, ugly day, ugly day, dark day, dark day, dark day, dark day, noon day, dark day, dark day.

There is no exact time for the sub-day, ugly day, yin day, Mao day, Chen day, Si day, noon day, evening day, Shen day, You day, garrison day and Hai day.

It is a day in the calendar of heavenly stems and earthly branches, China, not a specific day, but it appears every 12 days; Heavenly stems and earthly branches in China takes 60 days as a cycle in the lunar calendar, while time takes 60 hours as a cycle, and two hours is one hour;

There are five days: Jiazi, Bingzi, Wuzi, Gengzi and Renzi. Zitian belongs to water in the five elements, but after cooperating with Tiangan, Yin Na's five lines of each Zitian are different. For example, Yin Na's five lines in Jiazi are gold in the sea and Yin Na's five lines in Gengzi are soil on the wall, so the characteristics of good luck and bad luck are different.

Extended data:

"Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai" are called twelve earthly branches, and ten heavenly stems and twelve earthly branches are matched in turn to form sixty basic units, which cooperate with each other in a fixed order to form the era method of dry branches;

Heavenly stems and earthly branches's invention has far-reaching influence, and it is still used in calendar, arithmetic, calculation, naming and so on. The 28 stars on Sunday are made up of stars. Astronomically speaking, stars are very stable, their relative positions remain unchanged for thousands of years or even longer, and their influence on the earth is relatively stable.

The earth and other planets in the solar system revolve around the sun constantly, while the whole solar system hovers in the Milky Way at the same position relative to the Polaris, which changes the positional relationship between stars due to the movement of the sun, the moon and the five stars, thus changing the influence of specific stars on the earth and everything on the ground. The ancients predicted good or bad luck by observing the sky at night.

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