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 establishment of the Western Han Dynasty, taichu calendar 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 combined calendar of yin and yang, including the lunar calendar we know now. In daily life, many people will say that the moon on the 15th is round. In fact, this is the lunar calendar recorded by the moon cycle.