Job Recruitment Website - Social security inquiry - Length of service is calculated according to files or social security records.

Length of service is calculated according to files or social security records.

Legal analysis: length of service is calculated by social security. According to the relevant policies of human resources and social security, the employer shall pay social insurance for the laborers after they take part in the work. Calculate length time coincides with the beginning of social insurance payment.

Legal basis: Article 58 of the Social Insurance Law of People's Republic of China (PRC) stipulates that the employer shall apply to the social insurance agency for social insurance registration for employees within 30 days from the date of employment. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay.

Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration.

The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.