The difference between the solar calendar and the lunar calendar is silly and unclear.

In fact, there are three calendars, the solar calendar, the lunar calendar and the lunar calendar. Gregorian calendar, that is, Gregorian calendar, measures time by the period of the earth's rotation around the sun, while lunar calendar measures time by the period of the moon's rotation around the earth. The lunar calendar is a mixed calendar, which is between the solar calendar and the lunar calendar. It can be said that it is the most accurate calendar to adjust the error through 24 solar terms and leap, which is very suitable for an agricultural country like China.