Is Tomb-Sweeping Day a fixed date?

The date in Tomb-Sweeping Day is not fixed, usually around April 5th every year. Tomb-Sweeping Day is the only day that is both a solar term and a festival, and the longitude 15 of the sun is the spirit of Tomb-Sweeping Day. Tomb-Sweeping Day gas point: Dou refers to B; The solar calendar is15; Gregorian calendar April 4-6. The "Twenty-four solar terms" were originally determined by the direction of the top of the bucket handle of the Big Dipper. The bucket handle starts from the "female" position and then rotates clockwise. When bucket handle points to the "second position", it is the spirit of Qingming.

However, because the time of the earth's revolution is not necessarily 365 days, there may be a phenomenon that the date is not fixed in the division of solar terms, so the festival time is around April 5 of the Gregorian calendar. At that time, vitality flourished, yin qi declined, everything "went to the old and welcomed the new", and the earth showed a scene of spring, tranquility and peace, which was a good time to go for an outing in spring and sweep the graves for sacrifice.

Tomb-Sweeping Day custom

Tomb-Sweeping Day, also known as outing festival, outing festival, March festival, ancestor worship festival, etc. It was celebrated at the turn of mid-spring and late spring. Tomb-Sweeping Day is the biggest ancestor worship festival of the Chinese nation, which originated from ancient ancestor belief and spring worship custom. Tomb-Sweeping Day has two connotations of nature and humanity, which are both natural solar terms and traditional festivals. Grave-sweeping and ancestor-worship outing are two major themes of Tomb-Sweeping Day, which have been passed down since ancient times in China.

In the historical development, Tomb-Sweeping Day has merged into the custom of forbidding fire and cold food in the popular cold food festival in the northern region. According to legend, the Cold Food Festival was established in the Spring and Autumn Period to commemorate the Jiexiu, a loyal minister of the State of Jin. Although it is related to Jie tui in folklore, the origin of cold food is not to commemorate Jie tui, but to follow the old habit of changing fires in ancient times, that is, as Zhou Li said, "In mid-spring, wooden cribs are used to repair fires in rural areas."

The above contents refer to Baidu Encyclopedia-Tomb-Sweeping Day.