When is the auspicious day of the ecliptic in leap February?

The auspicious day of the ecliptic in leap February is the first day, the twelfth day, the thirteenth day, the 24th day and the 25th day of leap February in 2023.

If the Gregorian calendar is changed, it will be March 22, 2023, April 2, 2023, April 3, 2023 14 and April 2023 15. At present, the current method of setting leap in China lunar calendar is seven leap years in nineteen years, that is, there are leap months in seven years of 19, which is determined by the solar calendar and the lunar calendar. The Gregorian calendar is based on the earth's revolution around the sun, while the lunar calendar is based on the change of the moon, which leads to the time corresponding to the Gregorian calendar and the lunar calendar is not fixed.

Leap moon algorithm

Leap month is a kind of calendar leap, which means that one month is added every two to three years in the lunar calendar. In the lunar calendar, the moon revolves around the earth. In the lunar calendar, the length of the first month of the lunar calendar is 29.5306 days, which is the average of one month. The whole year is 65438+ February, which is less than 365.2422 days in the tropic year 10.88 days. Every little makes a mickle.

So leap for one month every three years, two months every five years and seven months every nineteen years. In this way, every month added in a leap year is called a leap month, and a leap month added after a certain month is called a leap month. The setting of leap month is to coordinate the contradiction between the tropic year and the lunar year and prevent the lunar year from being out of touch with the tropic year, that is, the four seasons.