Why is Tomb-Sweeping Day always in 456? What are the solar terms for Qingming these three days?

Why is it that the weather in Tomb-Sweeping Day is always clear and Wan Li in these three days? It is one of the 24 solar terms. Solar term is a knowledge system and social practice formed by observing the movement of the sun in a year, and each node corresponds to a certain position reached by the earth every time it runs 15 on the ecliptic, and understanding the changing laws of seasons and climate in a year. However, the actual length of a tropical year is 365.2422 days, and the Gregorian calendar year is 365 days, which is 0.2422 days more each year. The specific time of solar terms will also be postponed every year. Sometimes a solar term lasts longer than midnight to the next day, but no matter how it changes, the date difference of solar terms will only be within three days, so the Qingming date in the solar calendar will change on April 4, 5 and 6.

What solar term is Qingming? Qingming is the fifth solar term.

Tomb-Sweeping Day generally refers to Tomb-Sweeping Day, also known as the Walking Festival and ancestor worship festival. This festival is held at the turn of mid-spring and late spring. It is not only a natural solar term, but also a traditional festival in China. It is not only a solemn festival to rob the tomb and worship the ancestors, but also a happy festival to go for an outing and get close to nature. Before Tomb-Sweeping Day, there were four solar terms: beginning of spring, rain, sting and vernal equinox, so Tomb-Sweeping Day was the fifth solar term.

When is Tomb-Sweeping Day in 2020? Tomb-Sweeping Day in 2020, April 4th, March of the lunar calendar 12.

Generally, solar terms are calculated according to the Gregorian calendar. In Tomb-Sweeping Day, solar terms are calculated according to the time when the earth revolves around the sun, so solar terms are all Gregorian calendar dates, because there is a certain error in the specific time of each tropical year. Tomb-Sweeping Day is usually on April 4-6, and Tomb-Sweeping Day will be on April 4 in 2020.

What are the customs in Tomb-Sweeping Day? Tomb-Sweeping Day can go hiking, plant trees and visit graves to worship his ancestors.

1, outing, there has been a custom of Qingming outing since ancient times, also known as exploring spring and seeking spring. It's a spring outing, which generally means going for a walk in the suburbs in early spring. During the Qingming Festival, the spring breeze is full and everything is budding, which is a good time to enjoy the scenery in the suburbs. 2, tree planting, Qingming tree planting custom originated from the custom of crossing willow and inserting willow in Qingming, and the survival rate of tree planting before and after Qingming was high.

3. Grave-sweeping is the center of Tomb-Sweeping Day custom. Tomb-Sweeping Day's ancestor worship is a memory of ancestors, which can not only express filial piety and yearning for ancestors, but also a cultural tradition of cautious respect for ancestors.