1, Chinese laws clearly stipulate that the normal working day is 8 hours, and overtime can be extended by 1 hour. With the consent of the laborer and the trade union, it can be extended by 3 hours a day without endangering the health of the laborer, but overtime work shall not exceed 36 hours a month. All agreements that violate this clause are null and void and violate the mandatory laws of China. 2. You can have labor arbitration, you can ask the administrative department for industry and commerce to order it to make corrections, you can also file a lawsuit after labor arbitration, you can recover the salary he didn't give you, and you can also impose additional penalties.