If some enterprises do not rest on Saturday and Sunday, then only April 4 (Qingming) is a day, which is stipulated by the state.
If you have a single holiday, you will have two days off and go to work as usual from April 4 to April 5 (two days).
If there is a weekend, I will go to work as usual from April 4 to April 6 (three days).
According to the notice of the General Office of the State Council, April 4th (Saturday, Lunar New Year's Tomb-Sweeping Day) is a legal holiday in Tomb-Sweeping Day in 2009.
If you need to work overtime, April 4 is three times the usual salary.