Is the beginning of spring or the first day of the first month the time contact of the stars flying in the mysterious sky?

The flying stars in the sky use not the solar calendar or the lunar calendar, but the summer calendar, that is, the 24 solar terms. Therefore, the handover of one year is based on the handover time starting in spring.

The same is true of the month, which is not the first day of each month in the Gregorian calendar or the lunar calendar, but the twelve solar terms in the twenty-four solar terms as the handover point of each month. These twelve festivals are: beginning of spring, Jing Ke, Qingming, Long Summer, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Heavy Snow and Slight Cold.

General calendars can find the date and handover time of festivals.