How many days are there in a year? If it is a leap year, how can a leap month leap? Please specify, thank you.

First of all, the lunar calendar basically takes 12 months as a year, and only leap years have an extra month. However, this calendar month is based on the first lunar month. 12 The time of the first lunar month is 354.3667 days, which is about 1 1 day worse than the tropical year. So there will be a difference of 33 days every three years. This deviation can be corrected if it is increased by one month every three years. This is the basis for the lunar calendar to set up a leap month. Set 3-year leap, 5-year leap, 1 1 year leap,1year leap. Generally, there are about 354 days in a year, leap year 13 months, and 383 or 384 days in a year. A year is divided into 12 months, with a big month and a small month, with a big month of 30 days and a small month of 29 days.