What does the time of enrollment mean

According to QueryLawmakers.com, the date of enrollment in social security refers to the date of first-time social security enrollment, which is generally the date an employee first registers personal information with the departmental social security.

Article 25 of the Social Security Law of the People's Republic of China*** and the State, the State establishes and improves the basic medical insurance system for urban residents. Basic medical insurance for urban residents is a combination of individual contributions and government subsidies. The government subsidizes the portion of individual contributions required by people enjoying the minimum subsistence guarantee, people with disabilities who have lost their ability to work, and older people and minors over 60 years of age from low-income families.