2020 is a leap month.

In 2020, the Year of the Rat will leap in April, with a total of 384 days, and the leap year in the Gregorian calendar will be 366 days, 52 weeks and 2 days. Lunar leap year leap month calculation, three-year leap, five-year leap, 19 leap; The lunar calendar basically takes 19 as a cycle, corresponding to the same time in the Gregorian calendar. The month of the leap month is inferred according to the laws of the lunar calendar, mainly according to the coincidence degree with the 24 solar terms of the lunar calendar; The number of leap months in the lunar calendar is the same as that in normal months, both of which are 29 or 30 days. The so-called leap in the lunar calendar is only called leap year and leap month, and there are also leap years in the Gregorian calendar. Leaping moon is a way of calendar leap. In Asia (especially in China), a leap month refers to an additional month in each leap year in the China calendar (lunar calendar).

The function of leap month is to prevent the lunar calendar from being out of touch with the tropic year and the four seasons. In ancient times, 19 adopted a leap week of 7 leap. By the time of Linde calendar in Tang Dynasty, the fixed leap week was abolished, and the leap month regardless of season was adopted, which was once every two to three years 1, especially in February of leap year in Gregorian calendar.