The Labor Law clearly stipulates that the working hours of workers are 40 hours per week, and the excess is overtime, which needs to be negotiated with the workers. Generally, it shall not exceed 1 hour per day; If it is necessary to extend the working hours for special reasons, the extended working hours shall not exceed 3 hours per day and 36 hours per month under the condition of ensuring the health of the workers. And workers should be guaranteed at least 1 day of rest every week.