What do you mean, three days before Tomb-Sweeping Day and three days after Tomb-Sweeping Day?

Three days before Tomb-Sweeping Day, it was "you can visit the grave three days before and after Tomb-Sweeping Day".

During Tomb-Sweeping Day, you don't have to go to the grave on the same day in Tomb-Sweeping Day. For example, some people Tomb-Sweeping Day didn't have time to go to the grave that day, so they could go to the grave three days before Tomb-Sweeping Day and three days after Tomb-Sweeping Day.

Tomb-Sweeping Day is first of all a very important solar term. As soon as Tomb-Sweeping Day arrives, the temperature rises, which is a good season for spring ploughing and planting. Therefore, there is a saying that "melons and beans are planted before and after Qingming". Agricultural proverb "Planting trees is not as clear as Qingming". The main customs of Qingming are: forbidding fire, sweeping graves, climbing mountains, cuju and inserting willows.