What spring is leap February?

Leaping February is a double spring year.

The double spring year means that there are two solar terms in beginning of spring in a year. The double spring year is a unique phenomenon in China calendar, which is actually caused by the difference between the solar calendar and the lunar calendar.

The solar calendar is based on the law that the earth revolves around the sun. The revolution of the earth 1 is 1 year, divided into 12 months, and counted as 365 days (366 days in leap years). The lunar calendar is based on the law of the moon's profit and loss. The orbit of the moon around the earth is 1 month, and a year is 12 months. The actual number of days is 354 days.

China's calendar is based on the cycles of the sun and the moon. In this way, there is a deviation of 1 1 day between the lunar calendar and the solar calendar, so the lunar calendar has a "leap month" to solve the time difference problem of the lunar calendar.

Precautions:

Not all the years in which the Spring Festival is earlier than the beginning of spring are double spring years. The year of 65438+1October 31-February 2 may be single spring, and the year in which the Spring Festival falls on February 3 must be the first single spring year in beginning of spring.

For example, 1889, 1900, 1995, and 20 14. The Spring Festival in 2033 falls on 65438+ 10/0, because/kloc- Results 190 1, 1996, 20 15, Spring Festival in 2034 falls on February 19, 1890 falls on 10/kloc. So 1889 is a single spring year, 1890 is a double spring year, 1900, 1995, 20 14, and 2033 is a double spring year.

65438+1The Spring Festival before October 30th must be a double spring year.