Generally, you should go to the local disease prevention and control center to apply for a health certificate. The Center for Disease Control and Prevention is a public welfare organization organized by the government to implement national-level disease control and public health technical management and services. State organs and institutions implement a unified working hours system, and the daily working hours of workers are no more than 8 hours, and the average working hours per week are no more than 44 hours. Saturday and Sunday are weekly rest days. There are usually people on duty on Saturday and Sunday, but they don't carry out daily business. The working hours of CDC are generally 8: 30-11:30 on weekdays; From 2: 00 pm to 5: 30 pm, the working hours of CDC in different regions are different. Please consult your local CDC for details.
legal ground
Provisions of the State Council on Working Hours of Employees Article 2 These Provisions shall apply to employees of state organs, social organizations, enterprises, institutions and other organizations in People's Republic of China (PRC). Article 3 The state practices a working hour system in which employees work 8 hours a day and 40 hours a week on average. Article 6 No unit or individual may extend the working hours of employees without authorization. If it is really necessary to extend working hours due to special circumstances and urgent tasks, it shall be implemented in accordance with relevant state regulations. Article 7 State organs and institutions shall practise uniform working hours. Since the implementation of these regulations, Saturday and Sunday in the first week are rest days, Sunday in the second week is rest days, and so on.