The lunar calendar usually dances once every few years.

In what year does leap month occur? Leap month and leap year

If you don't pay attention, probably many people think that "leap month" and "leap year" are the same meaning, but they are not. Although there is only one word missing, the meaning is far from the same.

"Leap year", which we usually say is 365 days a year, is actually a rough figure, and the exact figure should be 365.2422 days. Then there are 365 days in a year, which is O.2422 days different from the actual year, so four years later, it is nearly one day less than the actual year. In order to make up for this difference, the calendar stipulates that four years is a leap year, that is, a year divisible by four is a leap year, and additionally stipulates that every century year (a year with two zeros at the end) must be divisible by 400 to be a leap year. For example, 1996 is a leap year, and 2000 is also a leap year, but 1700 is not. The leap year in the solar calendar has 29 days in February, the leap day is February 29 and the leap year in the solar calendar has 366 days. In other words, February in a leap year in the solar calendar is not called leap February, and leap months are unique to the lunar calendar.

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There is no thirteenth month in the lunar calendar. According to the calendar rules, leap months are repeated from February to the same month after 10, and the repeated months are leap months. For example, the leap month after April is called leap April.

Calculation of leap month in lunar leap year, 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. For example, in the Gregorian calendar, May 27th, 2006, 5438+0, May 27th 1982 and May 27th 1963 are the fifth day of leap April.

Gregorian calendar 1982-2042 and lunar leap year leap month comparison table

The year of the leap month (the first day) in the Gregorian calendar month.

[1July 26th, 987, leap in June, the year of DaDingMao.

[2065438+July 23, 2007, leap June, Dading Unitary Year.

[July 25, 2025, June leap for four years.

[July 23, 2036, leap June, Xiao nian.

I was in June, too.

How often does leap month happen? Every two or three years. There is a summary of "seven leaps in nineteen years" among the people. In the lunar calendar, because the average number of days in a year 12 months (called "lunar month" for the time being) is less than that in the solar calendar 1 1 day, the calendar stipulates that a leap month must be added every two or three years to make up for the difference of about one month. And because this difference is not a regular number, it is not very regular when leap months need to be added. However, with the increase of years, people have summed up the law of "seven leap months in nineteen years", that is to say, there should be seven leap months in the China lunar calendar in nineteen years. It depends on the disparity between the last month and the twenty-four solar terms, because the dates of the twenty-four solar terms in the lunar calendar are basically the same. But generally speaking, there is no leap month after the twelfth lunar month and the first lunar month. For example, in 2006, the China lunar leap in July, and in 2009, the China lunar leap in May.

When is the next leap month? 20 14 leap September 20 17 leap June 2020 leap April 2023 leap February

2025 leap June 2028 leap May 203 1 leap March 2033 leap winter month 2036 leap June 2039 leap May 2042 leap February.

2044 leap 2047 leap July 2050 leap May 2052 leap March 2055 leap August 2058 leap June 206 1 leap March.

Leap in 2063, leap in July 2066, leap in May 2069, leap in August 2074, leap in June 2077, leap in April 2080, leap in March.

Leap in 2082, leap in July 1985, leap in May 1988, leap in April 1990, leap in August 1993, leap in June 1996 and leap in April 1999.

2 10 1 leap July 2 104 leap May 2 107 leap April 2 109 leap September 212 leap June 2/kloc-0.

2 120 leap July 2 123 leap May 2 126 leap April 2 128 leap winter 2 13 1 leap June 2 134 leap May 2

2 139 leap July 2 142 leap may 2 145 leap April 2 147 leap winter month 2 150

What year is the next leap month in Na Yue? No 1949 leap July 1952 leap may 1955 leap March 1957 leap August 1960 leap June 1963 leap April1. 7 1 leap may 1974 leap April 1976 leap August 1979 leap June 1982 leap April 1984 leap October1988. 38+0998 leap May 200 1 leap April 2004 leap February 2006 leap July 2009 leap May 20 12 leap April 20 14 leap September 20 17 leap June 2020 leap April, especially many. Why is this? It turns out that the time interval between the two gases is different. The aforementioned 30.4368 days is only an average. In fact, the earth's orbit around the sun is an ellipse, and the sun is located at a focus of the ellipse. The farthest point on the orbit from the sun is called perihelion, and the nearest point is called perihelion. When the earth moves slowly near the perihelion, the time interval between two neutral phases is longer, the longest being 3 1.45 days, so there is more possibility of no neutral phase and more chances of leap in the moon. On the contrary, the earth moves fast near the perihelion, so the time interval between the two phases is short, the shortest is only more than 29 days, so there are fewer opportunities without phases, and there are even fewer opportunities for leap months. In this way, we won't be surprised that there is no leap month in the first or twelfth month (including November of the lunar calendar). If leap month is to be placed in the first or twelfth month, can't there be two Spring Festival or two New Year's Eve? In fact, this kind of calendar existed before the Qing Dynasty, but later, due to the change of calendar annotation method, there was no such coincidence. There will be no leap months in the first and twelfth months.

Which years have leap months, and which months? There is a leap month in May this year, and there should be a leap month every three years.

Please accept it, thank you!

There is usually a leap year every few years. Gregorian calendar is generally a leap year. There are 97 leap years in the Gregorian calendar in 400 years, one every four years and one more day in February.

The seventh leap in the nineteenth year of the lunar calendar is a leap month, that is, a year with a leap month is thirteen months a year.

Please adopt!

There is a leap year every few years. Generally there is a leap year every four years. However, if you encounter an integer multiple of 100, you need to be evenly divided by 400 to be a leap year, so it is possible to have a leap year every eight years.

(leap month) How many days are there in the lunar calendar year?

12 months has an average of three days in a year:

Five big months, seven small months, 353 days (e.g.1965b),

Six big months, six small months, 354 days (for example, in 2005),

Seven big months and five small months, a total of 355 days (for example, 2003),

There are three days in thirteen months of leap year (a leap month means an extra month).

Six big months and seven small months with 383 days (e.g. 1993 Gui You year),

Seven big months, six small months and 384 days (for example, in 2004),

Eight big months and five small months have 385 days (for example, the third year of 2006).

The average year of the lunar calendar is 10 to 13 days less than the Gregorian calendar, and the leap year is 17 to 20 days more than the Gregorian calendar. Leap year is a term in the Gregorian calendar. According to the Gregorian calendar, there are 97 leap years every 400 years, and the years that don't meet every 100 years can be divisible by 4, which is a leap year, and February this year is 29 days; February in other years is 28 days. Except for February, there is no difference between the days of a normal year and a leap year.

2。 Leaping moon is a term in the China lunar calendar. Because the lunar calendar is a lunar calendar, we should give consideration to both the moon and the sun. Since15th or16th is a full moon, each month is about 29.5 days. Generally 12 months has only 355 days. This year's accumulation will be out of touch with the season (because the period of revolution on Earth is 365 days). Therefore, one month should be added every three years or so, so that the long-term average length of lunar year is the same as that of Gregorian year, which is about 365.2425 days. The added month is called leap month. The leap month in the lunar calendar is probably the seventh leap month in the nineteenth year. Leap moon refers to a phenomenon in the lunar calendar. The lunar calendar is based on the full moon, namely, the full moon and the full moon. The length of the full moon is 29.5306 days, which is the cycle of the moon's profit and loss. According to the lunar calendar, there are 30 full moons and 29 full moons, and a year is 12 months * * 354 days. Lunar months have no seasonal significance. Just after 17, the date of the lunar calendar will be reversed with the seasons. For example, one year's New Year is spent in the snow, and after 17, fans will be shaken for the New Year. Naturally, such a calendar can't meet the needs of agricultural production, so the China lunar calendar has been in parallel with the twenty-four solar terms since the Qin and Han Dynasties, and uses the twenty-four solar terms to guide agricultural production.

Twenty-four solar terms can be divided into two groups: "solar terms" and "middle qi": the ancients regarded every 300 meridian from slight cold as a solar term; From the winter solstice, every 300 meridian is a neutral gas, and there are 12 solar terms and 12 neutral gas in a year. 12 solar terms divide a year into 12 months, and each month has a solar term and a neutral atmosphere. Solar term is the starting point of solar term month; Zhongqi is the midpoint of the festival. China's traditional calendar does not adopt long-term deployment method for day order, month order, big month, small month, normal year and leap year, but emphasizes year-by-year calculation. This country has a special organization to calculate the calendar.

(1) Set the date order according to the moon phase. It calculates the date and time of the conjunction of the sun and the moon one by one, and the first day of each month is the date of the conjunction; Judging the size of last month according to the number of days included in two consecutive reunions. If the interval between this new moon and the next one is 30 days, then this month is the big moon; If it is only once every 29 days, it is an abortion.

(2) Set the month order with neutral gas. First of all, the calendar month and leap month are distinguished by whether the calendar month is neutral or not. We know that there are 12 neutral gases in a tropical year, but it includes 365.2422 ÷ 29.5306 = 2.3682 moons. After several calendar months of rotation, there must be a calendar month without neutral gas. Hanshu? The calendar says, "The new moon cannot be obtained, so it is called leap moon". This month without neutrality is a leap month. When the previous calendar day is a few months, it is a leap month. For example, the leap month of 1984 appears after October of the old calendar, so it is called "leap October". Leap months are calculated, not fixed in the monthly order of the year. In addition to 1 1 month,1February and the first lunar month, leap month is possible, and it is the seventh leap month in the nineteenth year.

To sum up, leap year is a phenomenon in the solar calendar, which is fixed in February, 29 days longer than the normal year; Leaping moon is a phenomenon in the lunar calendar. This is a leap month. That year, there were 13 months in the lunar calendar, and that year was called leap month year. The leap month year is 384.

In what year does the lunar leap month occur?

1949 leap July 1952 leap may 1955 leap March 1957 leap August 1960 leap June.

1963 leap April 1966 leap March 1968 leap July 197 1 leap may 1974 leap April.

1976 leap August 1979 leap June 1982 leap April 1984 leap October 1987 leap June.

1990 leap may 1993 leap March 1995 leap August 1998 leap may 200 1 leap April.

Leap in February 2004, leap in July 2006, leap in May 20 12, leap in April 20 14, leap in September.

20 17 leap in June 2020 leap in April.

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Gregorian calendar leap month

Simple calculation method of leap year in Gregorian calendar (a year that meets one of the following conditions is a leap year)

1。 Divisible by 4, but not by 100.

2。 Divisible by 400.