1 1.2 lunar calendar

202310.2 is September of the lunar calendar/kloc-0.9, which is Jiazi Day in the year of Guimao, and the solar terms are between beginning of winter and Xiaoxue.

The yellow calendar, also known as the old yellow calendar, the imperial calendar and the children's calendar, etc. , is a kind of almanac that can display various calendars such as Gregorian calendar, Lunar calendar and Ganzhi calendar at the same time, which contains a large number of rules and contents related to seeking good fortune and avoiding evil. The main contents of the Gregorian calendar include: twenty-four solar terms, avoiding good and bad luck, rushing evil, combining harm, receiving sound, dry branches, twelve gods, on duty, fetal gods, stars, moon phases, exorcism, Peng Zuji, six splendors, nine planets, fleeting time, Chinese medicine, mysterious nine planets, week, twelve zodiac signs, orientation and so on.

The yellow calendar not only includes astronomy, meteorology, seasonal seasons, but also contains some taboos that people should abide by in their daily lives. Its contents guide the farming opportunities of working farmers in China, so it is also called farmers' calendar. The people of the Yellow Calendar are also commonly known as "general books". However, in Cantonese, because the word "Shu" in general books is homophone with the word "lose", it is also called "Tong Sheng" because of taboo.

The historical development of the yellow calendar;

1. In ancient times, people imagined that there was a celestial body running at the same speed as the old star, but in the opposite direction to the old star, which was called "Tai Sui". The old star is positive, and it goes to the right in the sky, that is, it rotates in four directions: west, south, east and north, while Tai Sui is negative, and it goes to the left in the place, that is, it rotates in four directions: east, south, west and north, both of which are twelve years a week.

2. Official calendars were quite popular in the Tang Dynasty, even printed privately. Because the almanac is a tool for the emperor to promulgate the calendar, people also call it the "imperial calendar". Now we can see the earliest royal calendars in China, one is the printed calendar of Tang Xizong, which lasted for four years (AD 877), and the other is the printed calendar of Tang Xizong, which lasted for two years (882).