How is the social day calculated?

In ancient times, the country was a day to worship the land gods, usually on the fifth day after beginning of spring and beginning of autumn. Clubs are divided into spring clubs and autumn clubs. It is wrong for some people to regard the vernal equinox and autumnal equinox as spring clubs and autumn clubs. In fact, the Spring Festival society is the fifth May Day after beginning of spring, while the autumn society is the fifth May Day after beginning of autumn.

The calculation method of Spring Club is the second May Day before Qingming Festival. Therefore, the Spring Festival is usually the first ten days in Tomb-Sweeping Day.

According to the custom of offering sacrifices, if someone died in the family last year, it is necessary to worship the new mountain and go to the new grave in front of the "Spring Society", which is the so-called "new mountain does not pass the society". There are two reasons, one is to avoid the big day of offering sacrifices to the land gods and meeting guests; Secondly, Yan Luowang "observed" the new ghosts' yearning for their loved ones, and "chartered" their souls to enjoy the sacrifice of their loved ones in the sun before the door of death was opened. This is a very kind arrangement, which promotes filial piety, because "being cautious to the end" is one of the ancient moral accomplishments.

Calculation method of social day: the fifth day after beginning of autumn, that is, look up the heavenly stems and earthly branches day in heavenly stems and earthly branches year, month and day of the lunar calendar. For example, February 7, 20 10 is the Wuzi day of Ding Chou month, and the year of Xin Chou in the twelfth lunar month is the first day after beginning of spring, and then calculate February 17 as the second day, that is, Wuzi day. February 27th is the third Wushen Day, that is, Wushen Day; March 9 is the fourth May Day, which is May 5. March 19 is the fifth may day, which is labor day.

Be careful not to confuse e with e, e is heavenly stem: a, b, c, d, e, f, g, Xin, n, q, etc.

Xū is the earthly branch: twelve earthly branches such as Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.

Cooperate with each other to form a symbolic calendar, that is, the so-called solar calendar 20 10 February 17 is equal to the lunar calendar.