Questions about the 24 solar terms and the lunar calendar

First of all, no one says mango is in the early May of the lunar calendar!

Because there is no law between the 24 solar terms and the lunar calendar, there is no equivalence.

The reasons are as follows: the lunar calendar is a calendar based on the trajectory of the moon; The 24 solar terms are based on the orbit of the sun (similar to the solar calendar).

The law of the lunar calendar and the solar calendar is roughly that the dates of the lunar calendar coincide once every nineteen years; Twenty-four solar terms can be said that each solar term is linked to a certain day in the solar calendar, because the error is generally within one day due to leap. This is also the reason why traditional Tomb-Sweeping Day is different from other traditional festivals (Tomb-Sweeping Day is based on April 5th of the solar calendar, while other traditional festivals are based on the lunar calendar).