What year is October of the next leap year?

Lead: In the timing method of the lunar calendar, if there is an extra leap month, there will be a leap month in a few years, but I'm afraid many people have never met a leap month, because the last leap month appeared in 1984, which is more than 30 years ago. So when is the next leap year in October? Let's look at the chronology of leap October.

October of leap year

1623, 1775, 1870, 1984, 2 166, 23 18, 2386,

248 1 xinsi year, 2500 gengzi year, 2595 yihai year, 2872 renzi year, 289 1 xinwei year, 1967 dinghai year, 1986 bingwu year,

308 1 Xinsi, 3263 Guiwei, 34 15 Mao Yinian, 3453 Guisi, 3483 Guihai, 3578 Wuxu, 3597 Dingsi,

3635 BC, 3673 BC, 3855 BC, 3950 BC, 3969 BC, 4045 BC, 4064 BC,

In 4083, Guihai, 4 178, 1898, 4,227 Dinghai, 4,360 Gengzi, 4,436 Bingzi, 4,447 Dingmao and 4,455 Yihai,

In Renyin in 4542, in Geng Xu in 4550, in the heart of 456 1 year, in Dingchou in 4637, in Renzi in 4732, in the bazaar in 48 19, and in Jiayin in 49 14.

When is the next leap in October?

The next leap October, the nearest from now, is on 2 166.

The date of the twenty-four solar terms of the lunar calendar is postponed month by month, so in some lunar months, the gas falls at the end of the month, and it will be out of gas next month. Generally, there will be a month without gas every two years, which coincides with the year when leap months are needed. Therefore, the lunar calendar stipulates that non-neutral months are leap months.

In the traditional Chinese lunar calendar, when the length of the first lunar month (29.5306) is the average of 1 month, that is, 12 months in a year and the length of the tropical year (365.2422) is about 10 and 2 1 day, it is necessary to set a leap. In the six-year calendar in ancient China, the leap month method was adopted, with three years 1 month, five years and two months, and 19 years and seven months. Every month in a leap year is called "leap month". The leap month is placed at the end of the year. For example, the seal script used in the early years of the Qin Dynasty and the Western Han Dynasty started in October and ended in September. Leap month is placed after September, which is called "post-September". When the taichu calendar Law was enacted in the early years of the Western Han Dynasty, leap months were inserted in every month of the year, and it was stipulated that the month without neutral gas was regarded as a leap month, and the month sequence was still the month sequence of last month. As long as it is called "leap month", this rule sets leap as the most reasonable calendar with neutral gas. In the Qing dynasty, the constitution continued and changed to a regular calendar. If we continue to use the law of no neutral gas to set up leap months, it is possible to set up two leap months a year. Therefore, it is added that leap year is defined as a year that includes 12 whole month between two winter solstices, and the first month without neutral gas in leap year is defined as leap month. This rule has been in use ever since. In leap years, leap April, leap May and leap June are the most, leap September and leap October are less, and leap winter, leap December and leap January are the lowest.

Why is there a leap month in the lunar calendar?

The lunar leap month is to coordinate the contradiction between the tropic year and the lunar year.

What is the contradiction between the tropic year and the lunar year? Remember first: the total length of the tropic year is 365.2422 days, and the length of the first lunar month 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.