How many days are there in the lunar calendar in 2020? Leap moon in 2020? What month is it now?
How many days are there in the lunar calendar in 2020? According to the old yellow calendar, there are 384 days in the lunar calendar in 2020.
2020 is a leap year, and there are 29 days in February this year, so the leap year in the solar calendar has 366 days. But the leap year of the lunar calendar will be one month longer than the average year of the lunar calendar (354 days). Therefore, there will be one more leap month in 2020 than usual, that is, 384 days.
Is 2020 a leap month? Every four years is a leap year. I learned in primary school that 2020 is divisible by 4, so 2020 is a leap year and also a leap April. In other words, there will be two April in the lunar calendar in 2020. The corresponding solar calendar date of leap April is Saturday, May 23rd, 2020-Saturday, June 20th, 2020.
Which leap month is determined according to the 24 solar terms, the lunar calendar has two solar terms every month, the beginning of the month is a festival, and the middle of the month is the middle of the month. One revolution of the earth means that the ecliptic is divided into 24 minutes, with 24 solar terms, and two solar terms are one month. One of the thirteen months of the lunar calendar is neutral, and this month is a leap month.
Why is the leap month in the lunar calendar based on the first month of the lunar calendar, that is, the cycle of the moon orbiting the earth, while the length of the lunar year is based on the tropic year, that is, the cycle of the earth orbiting the sun? The number of days in a tropical year is actually 365.2422 days, so it is impossible to count a year as twelve or thirteen plastic moons, which is out of season.
Therefore, there will be a leap month, which is based on the 24 solar terms. There is a saying that there are seven leap months in nineteen years, that is, every 19 tropic years, and the rest 12 tropic years are normal years. In this way, the seasonal changes of the lunar calendar are basically consistent with the Gregorian calendar.
The notation of "the seventh day of the leap month in the nineteenth year" has existed since the Spring and Autumn Period and the Warring States Period, which can also be said to be a major feature of our country.