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

The differences between the lunar calendar and the lunar calendar are as follows:

Since the advent of taichu calendar Law in the Western Han Dynasty, it has played a very important role in promoting the development of agriculture in China. And the subsequent dynasties also continued to innovate on this basis.

Therefore, the lunar calendar handed down from ancient times to the present belongs to the combination of yin and yang, which also includes the lunar calendar we know now. In daily life, many people will say that the moon on 15 is round and round. In fact, this is the lunar cycle recorded in the lunar calendar.