Legal analysis: it takes 2-7 days to apply for a health certificate, and you can get it at the latest one week. The validity period of a health certificate is generally one year, so you should have a physical examination when applying for a health certificate. Don't apply on weekends.

Legal basis: Administrative Measures for Preventive Health Examination

Eleventh units under inspection shall submit the list of inspected personnel to the health supervision institutions as required; The inspected unit is responsible for establishing personal health records.

Article 12 The health examination undertaking unit shall arrange the health examination according to the list of the inspected personnel determined by the health supervision institution and the specified items. The specific health examination work shall be carried out in accordance with the relevant national technical specifications.