What's the difference between Sony and the lunar calendar?

The solar calendar, that is, the solar calendar, takes the return year of the four-season cycle (the earth goes around the sun once) as the basic cycle, and has nothing to do with the change of the moon phase. The average length of the solar calendar year is equal to the tropic year, and the number of calendar months and the number of months in a year are artificially specified.

The lunar calendar, the traditional calendar in China, belongs to the lunar calendar (we often refer to it simply as the lunar calendar, which must be distinguished from the lunar calendar mentioned above). Taking the moon as the calendar month basis and considering the cycle of the tropic year, the method of adding leap month is adopted to make the average length of the calendar year close to the tropic year. The first day of the first lunar month is the Shuotian, and the time between the two Shuotian is January, with 30 days in the big month and 29 days in the small month. 1 year, set 12 months, set ***354 or 355 days. In order to make the calendar year approach the tropic year on average, seven leap months are added to the calendar year 19, and a year with leap months has 13 months ***384 or 385 days, which is called leap year. The length of 19 calendar year and 19 tropic year is almost equal, and the seven leap months are generally in 3, 6, 9,1,14, 17, 19 years. The specific placement month is related to the neutral atmosphere of the 24 solar terms. The twenty-four solar terms are actually composed of 12 solar terms and 12 neutral solar terms (is it your accident), which are arranged alternately and have fixed neutral solar terms every month. For example, the month containing neutral gas and rain is the first month.