Can I go to the grave 20 days before Qingming?

Tomb-Sweeping Day is usually one or two weeks ahead of schedule.

Tomb-Sweeping Day, the sooner you visit the grave, the better. There used to be a proverb, "Qingming comes early, but it is late at eleven o'clock." The sooner Tomb-Sweeping Day is held, the better. It can be held one or two weeks before Tomb-Sweeping Day, not all in Tomb-Sweeping Day. In addition, it is best to sweep graves before 7 am to 3 pm, which is the best time for us to pay homage to our ancestors. Because after three o'clock in the afternoon, the yang has gradually subsided and the yin has gradually increased. If unlucky or weak people are in this period, it is easy to provoke yin qi to bring you harm.

Buried for less than three years. Grave-sweeping time is an auspicious day 10 days before Tomb-Sweeping Day. The second time to sweep the grave was the day before Tomb-Sweeping Day; The time for the third grave-sweeping is an auspicious day 10 after Tomb-Sweeping Day.