Legal analysis: Generally, health certificates are not issued on Saturdays and Sundays. Because the health certificate is generally issued by the Municipal Center for Disease Control and Prevention, and the CDC belongs to a public institution, according to the working hours of government agencies and units, it is generally a weekend, and there are special personnel on duty for emergencies, but daily business is not carried out.
Legal basis: Article 7 of the Regulations of the State Council on Working Hours of Employees stipulates that state organs and institutions implement unified working hours, with Saturdays and Sundays as weekly rest days. Enterprises and institutions that cannot implement the unified working hours stipulated in the preceding paragraph may flexibly arrange weekly rest days according to actual conditions.