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 dividing the day, ugly day, yin day, Mao day, Chen day, Si day, noon day, late day, Shen day, unitary day, observing day and Hai day.

It is a day in the calendar of heavenly stems and earthly branches, China, not a specific day, but it will appear every 12 days; The heavenly stems and earthly branches in the China lunar calendar is a 60-day cycle, the time is a 60-hour cycle, and two hours is an 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 elements are different in each Zitian. For example, Yin Na, the five elements of Jiazi, is the gold in the sea, and Yin Na, the five elements of Gengzi, is the soil on the wall, so the characteristics of good or ill luck are different.

Extended data:

"Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai" are called twelve earthly branches. Ten-day trunk 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 trunk branches;

Heavenly stems and earthly branches's invention has far-reaching influence, and heavenly stems and earthly branches is still used in calendar, arithmetic, calculation and naming. 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. Because of the movement of the sun, the moon and the five stars, the positional relationship between the stars changes, which in turn changes 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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