20 16 when should the tomb be closed?

From Tomb-Sweeping Day to Changxia (the tomb is closed) for one month, it is a folk tradition to sweep graves and worship mountains. On the last day of summer, commonly known as "tomb closing", the grave sweeping activities ended on the day of tomb closing. But in fact, there is a folk saying that "the first seven days are followed by eight days, and the ghost has a holiday", that is, the gate of hades only opens seven days before Tomb-Sweeping Day and eight days after the festival. Folk customs vary from place to place.