Is there a leap month in the first month of 2019? Which year has a leap first month?

Is there a leap month in the first month of 2019? Which year has a leap first month?
Is there a leap month in the first month of 2019? Which year has a leap first month? Why is there a leap month? How often does a leap month occur? Shuimoxiansheng.com has carefully compiled detailed information about the first month of the lunar calendar in 2019. If you want to know the auspicious and inauspicious days in the first month of the lunar calendar, just visit Shuimoxiansheng.com.

Is there a leap month in the first month of 2019?

There is no leap month in the first month of 2019, and there is no leap month in 2019. " The Book of Documents: The Canon of Yao" states: "The four seasons are determined by the leap month to make a year." Confucius' commentary states: "If there are twelve extra days in a year and a full month before three full years, then a leap month is added." Leap month is a way of adding a leap month to the calendar. In order to coordinate the contradiction between the tropical year and the Han calendar and prevent the Han calendar years and months from being out of sync with the tropical year and the four seasons, a leap month is added every 2 to 3 years. In ancient times, a leap week with 7 leap years was adopted in 19 years. In the Tang Dynasty, the "Linde Calendar" was abolished, and the leap month without a festival season was adopted. Therefore, a leap month is added when the leap year is due.

Which year has a leap first month?

In the third year of Jianwu in the Eastern Han Dynasty, that is, in 27 AD, it was the year Dinghai and the first month of the leap year. In the 22nd year of Jian'an in the Eastern Han Dynasty, that is, in 217 AD, it was the year Dingyou and the first month of the lunar calendar. After entering the 21st century, the first leap month of the first lunar month will occur in 2262. That is to say, the next leap year of the first lunar month will occur more than 200 years later. The leap month of the first lunar month is a rare leap month. There has been no leap month of the first lunar month from the 18th to the 22nd century, nor in the 25th century and the 28th to 41st century. The last leap year of the first lunar month occurred in 1640 (the Gengchen year) in the 17th century, and the next leap year of the first lunar month will occur in 2262 (the Renyin year) in the 23rd century. The next year with a leap month is April 2020.

Why is there a leap month?

The lunar calendar that has been used in my country for a long time is not entirely based on the lunar calendar, nor is it entirely based on the solar calendar. Instead, it uses both, combining the characteristics of both the lunar and solar calendars, so it is called the "yin-yang calendar." On the one hand, the lunar calendar takes one month as the length of the moon's orbit around the earth, and the average length of a calendar month is equal to the synodic month. On the other hand, the lunar calendar has leap months to make the average length of the calendar year as close to the tropical year as possible, and at the same time sets 24 solar terms to reflect the changing characteristics of the seasons. The length of the lunar month is divided into long and short months: a long month is 30 days, and a short month is 29 days. According to the lunar calendar, the beginning of the month must be a new moon, and the day of the new moon is designated as the first day of the month. The size of the lunar month depends on the date of the conjunction, which is determined by the number of days contained in the two new moons. Since the length of two synodic months is not exactly 59 days, the number of big and small months in a year is not necessarily equal. Sometimes there may be two big or small months in succession to make the average length of the calendar month as close as possible to the synodic month. The remaining difference is adjusted by the arrangement of leap months and leap month construction. The synodic month and the tropical year are two cycles that are difficult to reconcile, and their remainders are very fragmented. However, the Chinese lunar calendar has successfully harmonized these two natural cycles that serve as the basis of the lunar and solar calendars. As early as the Spring and Autumn Period, it was discovered that if seven leap months were inserted into 19 lunar years, the total length would be almost equal to that of 19 solar years. This "method of seven leap years in nineteen years" is called "leap chapter" in the ancient calendar.

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