Isn't there a leap month in the lunar calendar? Did you moisturize the first month?

Of course, the first month of leap is leap January.

Due to the constant gas method, the average length of a festival in winter is about 29.74 days, which is not much longer than the first month of the lunar calendar, and the solar terms are slowly delayed month by month, so it is very unlikely to set up a leap month in winter.

On the contrary, the earth moves slowly near the summer solstice, and the solar terms are also slow, reaching as many as 16 days at a time. Therefore, there are many leap months in summer and the months around it, such as March, April, May, June and July in the lunar calendar.

In the 200 years from 182 1 to 2020, there are 74 leap months. Among them, 1 month, 1 1 month and1February have no leap, and the most leap is in May, reaching 16 times. Since 1640, there have been leap years *** 1 times for more than 500 years, that is, 1640.

Jumping off a building in the first month is equivalent to two Spring Festival holidays, but it is rare and may not happen in a lifetime.

It is estimated that from 2000 to 8000, there were leap months in 32 years. They are 2262, 2357, 2520, 2539, 2634, 4 103, 4828, 4923, 5868, 6088, 6 183, 6240, 6278, 6460, 6555 respectively. 7424、75 19、7538、76 14、7633、7796、789 1、79 10、7986。