What is a leap month?

What is leap month and what is its function? In the Gregorian calendar (Gregorian calendar), a year with leap days is called leap year, which is generally 365 days and 366 days. Because the earth's cycle around the sun is 365 days, 5 hours, 48 minutes and 46 seconds (365,438+09 days), which is the tropic year, the Gregorian calendar sets a year as 365 days. The remaining time is about one day in four years, plus February, so the normal year is 365 days, February is 28 days, leap year is 366 days, and February is 29 days. So every 400 years, there are 97 leap years, with one day added at the end of February and 366 days in leap years. Calculation method of leap year: the number of years in the calendar year can be divisible by four, which is a leap year; Divided by 100 but not divided by 400 is an average year; Leap years can be divisible by 100 or 400. For example, 2000 is a leap year, and 1900 is not. In the China lunar calendar, a year with a leap month is called a leap year. The general year is 12 months, 354 or 355 days, and the leap year is 13 months, 383 or 384 days. As a kind of lunar calendar, the number of days in each month depends on the monthly loss, and the time of one year is based on 12 months. In order to close the earth's cycle around the sun, that is, the tropic year, one month is added every two to four years, and the added month is a leap month, so the leap year of the lunar calendar is 13 months. 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. The month of the leap month is inferred according to the laws of the lunar calendar, mainly according to the coincidence with the 24 solar terms of the lunar calendar; The number of leap months in the lunar calendar is 29 or 30 days, just like normal months. The so-called "leap" in the lunar calendar is just called leap year and leap month, and there are also leap years in the solar calendar. In the Gregorian calendar (Gregorian calendar), a year with leap days is called leap year, which is generally 365 days and 366 days. Because the earth's cycle around the sun is 365 days, 5 hours, 48 minutes and 46 seconds (365,438+09 days), which is the tropic year, the Gregorian calendar sets a year as 365 days. The remaining time is about one day in four years, plus February, so the normal year is 365 days, February is 28 days, leap year is 366 days, and February is 29 days. So every 400 years, there are 97 leap years, with one day added at the end of February and 366 days in leap years. Calculation method of leap year: the number of years in the calendar year can be divisible by four, which is a leap year; Divided by 100 but not divided by 400 is an average year; Leap years can be divisible by 100 or 400. For example, 2000 is a leap year, and 1900 is not. In the China lunar calendar, a year with a leap month is called a leap year. The general year is 12 months, 354 or 355 days, and the leap year is 13 months, 383 or 384 days. As a kind of lunar calendar, the number of days in each month depends on the monthly loss, and the time of one year is based on 12 months. In order to close the earth's cycle around the sun, that is, the tropic year, one month is added every two to four years, and the added month is a leap month, so the leap year of the lunar calendar is 13 months. 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.

What does the lunar leap month mean? This means that there are two identical months in that year. For example, a year is a leap April, that is, there are two April in a year. However, there are two months in April of the lunar calendar that do not affect the lunar calendar, and the months of the lunar calendar are still counted as usual. .

What does leap month mean? The number of leap months in the lunar calendar is 29 or 30 days, just like normal months. The so-called "leap" in the lunar calendar is only called leap year and leap month, and the solar calendar is also called the year of the rooster.

In the Gregorian calendar (Gregorian calendar), a year with leap days is called leap year, which is generally 365 days and 366 days. Because the earth's cycle around the sun is 365 days, 5 hours, 48 minutes and 46 seconds (365,438+09 days), which is the tropic year, the Gregorian calendar sets a year as 365 days. The remaining time is about one day in four years, plus February, so the normal year is 365 days, February is 28 days, leap year is 366 days, and February is 29 days. So every 400 years, there are 97 leap years, with one day added at the end of February and 366 days in leap years. Calculation method of leap year: the number of years in the calendar year can be divisible by four, which is a leap year; Divided by 100 but not divided by 400 is an average year; Leap years can be divisible by 100 or 400. For example, 2000 is a leap year, and 1900 is not.

In the China lunar calendar, a year with a leap month is called a leap year. The general year is 12 months, 354 or 355 days, and the leap year is 13 months, 383 or 384 days. As a kind of lunar calendar, the number of days in each month depends on the monthly loss, and the time of one year is based on 12 months. In order to close the earth's cycle around the sun, that is, the tropic year, one month is added every two to four years, and the added month is a leap month, so the leap year of the lunar calendar is 13 months.

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.

What do leap years and leap months mean? There are 365 days, 5 hours, 48 minutes and 46 seconds in a year. However, the number of days in a year must be an integer, so a year is 365 days, and the remaining 5 hours, 48 minutes and 46 seconds accumulate to one day in April, so one day is added every four years, which is called "leap year". A year without leap days is called "average year", with 365 days in average year and 366 days in leap year.

However, after four years of leap, it's only 23: 00, 15 minutes and 4 seconds. Today is more than 44 minutes and 56 seconds, which adds up to 100 years, which is 17: 58 minutes and 24 seconds, which is about three quarters of a day. Therefore, a leap is wasted every hundred years, and it will not be wasted until the 400th year. If it is a leap every four years and every 400 years, it will take more than 2: 53 minutes and 20 seconds, and it will take eight 400 years, that is, 3200 years, to make up for the difference the next day.

The lunar calendar is based on the new moon. The time of the first month of the lunar calendar is 29. 5366 days, so the lunar calendar is also 30 days for the big month and 29 days for the small month. The size of the lunar calendar is determined by calculation, and sometimes there may be two big months or two consecutive small months. Because the first month of the lunar calendar is slightly longer than 29 and a half days, there are about 53 big months and 47 small months in every 100 calendar month. The lunar calendar basically takes 12 months as a year. But the time of 12 moon is 354. 3667 days, which is about 1 1 day different from the tropic year of the solar calendar, so there will be 33 days more every three years, that is, one month more. In order to eliminate the extra days, one month will be added every three years, which is the leap month of the lunar calendar. A year with a leap month is called a leap year, so the leap year of the lunar calendar has 13 months, and which month to run depends on the solar terms.

Which month of the lunar leap depends on the 24 solar terms in a year. The twenty-four solar terms of the China lunar calendar are divided into twelve solar terms and twelve solar terms. The twelve solar terms are: beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Heavy Snow and Slight Cold; The twelve kinds of qi are: rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, great summer heat, summer heat, autumn equinox, first frost, light snow, winter solstice and severe cold. The twenty-four solar terms of the lunar calendar are postponed month by month. So in some lunar months, the gas drops at the end of the month, and it will be out of gas next month. This coincides with the year when we need leap month. Therefore, it is stipulated in the lunar calendar that only neutral months are considered leap months, and the following months are called moist months. For example, in 2006, July 30th of the lunar calendar will be the Mid-Autumn Festival, so there will be no Mid-August Mid-Autumn Festival, so July is a leap year.

What does the lunar leap month mean? This means that there are two identical months in that year. For example, a year is a leap April, that is, there are two April in a year. However, there are two months in April of the lunar calendar that do not affect the lunar calendar, and the months of the lunar calendar are still counted as usual. .

What is leap month, the origin of leap month! Leap moon refers to a phenomenon in the lunar calendar. The lunar calendar arranges the big moon and the small moon according to the full moon, which is the full moon. The length of a full moon is 29.5306 days, which is the cycle of moon phase profit and loss.

According to the lunar calendar of leap month, the big month has 30 days, and the small month has 29 days, so the year is 12 months * * 354 days, and the lunar month has no seasonal significance, so the difference between the year and the solar calendar is 1 1 day, and only after 17 years, the date of the lunar calendar will be changed. Using such a calendar naturally cannot meet the needs of agricultural production. Therefore, since the Qin and Han Dynasties, the lunar calendar in China has been in parallel with the twenty-four solar terms, which are used to guide agricultural production.

The origin of the leap month The lunar calendar set up the leap month to coordinate the contradiction between the tropic year and the lunar year.

What is the contradiction between the tropic year and the lunar year? We know that the total length of the tropic year is 365.2422 days, and the length of the first month of the lunar calendar is 29.5306 days. 12 lunar months make up the lunar year, with a length of 29.5306× 12=354.3672 days, which is 10.88 days less than the regression, and about1/kloc-0 per month less than 0.9 1 day. Accordingly, if the Spring Festival in one year of the lunar calendar is a snowy winter, the Spring Festival in the next year will be 1 1 day earlier than the season, and 16 Lunar New Year will appear in the hot summer. If the lunar year consists of thirteen lunar months, the length is 29.5306× 13=383.8978 days, which is more than the tropic year 18 days.

If the calendar is made according to the above regulations, there will be a strange phenomenon that the weather is inconsistent with the calendar and the time order is disordered and reversed-this is contradiction.

In order to overcome this shortcoming, our ancestors found the method of "leap month" on the basis of astronomical observation, ensuring that the first month to March is spring, April to June is summer, July to September is autumn, and October to December is winter, while ensuring that the first year of the lunar calendar is in late winter and early spring.

The mid-year month of the lunar calendar is based on the length of 29.5306 days in the first lunar month, so the big month is 30 days and the small month is 29 days. In order to ensure that the first day of each month (the first day) must be a new moon, the arrangement of large and small months is not fixed and needs to be determined through strict observation and calculation. Therefore, it is very common to be big or small for two consecutive months in the lunar calendar, and even there are rare exceptions, such as 1990 in which March and April are small, and 9, 10,1,1February are big for four consecutive months.

The lunar calendar adopts the method of 19 plus 7 leap months, that is, the "19 year 7 leap method", which well coordinates the return year and the lunar year, so that the New Year's Day (Spring Festival) of the lunar calendar is always kept in late winter and early spring. The ancients called 235 new moons "leap weeks".

The method of placing leap in the lunar calendar can make the average length of the lunar year close to the tropic year. The moon in the lunar calendar has distinct moon phase characteristics, which keeps the best characteristics of both the solar calendar and the lunar calendar.

At present, the method of setting leap is between two winter solstice. If it is only 12 months, it is not a leap; if it is 13 months, it is a leap. The leap month begins on the "winter solstice". When there is no "neutral spirit" in the first month, this month is a leap month, and its name is to add the word "leap" before the previous month.

What is a leap year and a leap month? A leap year is a year divisible by 4 in the solar calendar, and a leap month is a month with repetition in the lunar calendar.

What is a leap month? If we calculate every few years according to our existing 365 days in a year, there will actually be a few more days in a year, but these extra days are not average, so we have no choice but to add up the extra days in a year and make up a whole month at a certain time. This is a leap month.

The purpose of leap month is to avoid the strange phenomenon that the time is inconsistent with the calendar and the time sequence is disordered and reversed. On the basis of astronomical observation, our ancestors found out the method of "leap month", ensuring that the first month to March is spring, April to June is summer, July to September is autumn, and October to December is winter, and at the same time ensuring that the first year of the lunar calendar is in late winter and early spring (all above refer to lunar season).

It's like the number in our division can't be divisible, but there is a remainder. A few more remainders can form an integer, just like a leap month. There is a leap month every four years.

What is a leap month? What are the flat and leap months in the solar calendar? It refers to February 29, once every four years, and the average month refers to February 28.