Is Tomb-Sweeping Day's grave sweeping ahead of schedule or delayed?

Tomb-Sweeping Day is a traditional festival to worship ancestors and sweep graves. Generally speaking, our grave-sweeping activities will be held in Tomb-Sweeping Day on April 4th. We can sweep the grave ten days in advance at most, and we can't postpone it. Otherwise, it is disrespectful to our ancestors and bad for our luck.

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 ancestors' beliefs and spring worship customs. 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. B (or solar calendar reaches 15) is the qi of Tomb-Sweeping Day,

The integrity of Tomb-Sweeping Day generally changes from April 4th to 6th in Gregorian calendar, and it is not fixed on a certain day, but April 5th is the most common. Qingming, a solar term, is full of vitality, and everything "spits out the old and absorbs the new". The earth presents the image of spring and tranquility, which is a good opportunity for a spring outing and Qingming ceremony in the suburbs. Tomb-Sweeping Day's ancestor worship is very long, 8 days before Tomb-Sweeping Day 10, and 8 days before and after Tomb-Sweeping Day 10 (at the turn of the middle and late spring). These nearly 20 days belong to Tomb-Sweeping Day who worships his ancestors.