The year and month of the main branch

In the traditional calendar of our country, a year is divided into 12 months by 24 solar terms, and each month contains two solar terms (odd solar terms in 24 solar terms are also referred to as "festival", and even solar terms are also referred to as "qi" or "zhong", which means that 24 solar terms has increased from 12 "festival" to 65438+. 60 different groups of heavenly stems and earthly branches are marked with months. From Jiazi to Guihai, the cycle changes, even infinitely.

Around the Spring and Autumn Period and the Warring States Period, twelve Yue Ji appeared, called Jian Yue. However, according to the available materials, it seems that it was not until the Han Dynasty that the moon was built on calendar slips. This should be caused by the influence of papermaking and printing.

In the traditional calendar of China, the first month is the month of moderate rain. It is stipulated in the calendar that leap month should be considered when the moon is not neutral, and the branches of the last month should be used as the mark when establishing the corresponding month. The name of Yuelou is based on the combination of cadres and branches, which was discovered in Tongguang four years (926) at the end of Tang Dynasty, and its year was "Gengyin was built in the first month". The lunar calendar is the monthly equinox of the solar calendar, excluding leap months (leap months (in the digital chronological system) belong to the two months before and after the lunar calendar).

Astrologers summed up a formula to push the arrangement of the branches and the moon:

At the age of Aji, C was the first, and at the age of B Geng, E was the first.

Bing Xin began to look for Geng at the beginning of the year, and Ding Ren was in the downstream position.

Say what you have, and you can pursue it above the good news.