The zodiac is counted from the first day or from the beginning of spring.

As for the zodiac, we should know the beginning of a year in China's traditional calendar. There are three main types: ① Xia Zheng-the first day of the first month is the beginning of the year. (2) Andrew-from the first day of December. ③ Zhou Zheng —— The first day of 1 1 month is the beginning of the year. (Historical Records-Almanac) These three calendars are the calendars of the above-mentioned ethnic areas, which have been used in the Zhuan Xu calendar of Qin Shihuang, and the first day of October is the beginning of a year. By the time of Emperor Wu of the Han Dynasty, taichu calendar Law followed Xia Zheng, starting with the first day of the first month of the first month, and lasted for more than two thousand years. In the above calendar, there were no zodiac signs at that time. It can be seen that the zodiac has nothing to do with the beginning of the year, and we are only following the summer calendar now.

The appearance of the zodiac began with the tricks after Emperor Wu of the Han Dynasty. Shu Shu has its own system in the traditional culture of China, which mainly includes mountain, medicine, life, divination and physiognomy. Its rules all take beginning of spring as the beginning of a year, and its operation is centered on 24 solar terms, including all the choices of year, month, day and time. Since the Chinese zodiac is based on tricks, it must be broken according to the rules of tricks, with beginning of spring as the calculation.