Length of service refers to the working hours of employees whose income is all or the main source, and the calculation of length of service refers to the calculation of working hours of employees whose income is all or the main source. The length of service marks the length of employees' working hours, and also reflects employees' contribution to society and enterprises and their level of knowledge, experience and technical proficiency.
Legal basis: Interpretation of People's Republic of China (PRC) on Several Issues Concerning the Application of Laws in the Trial of Labor Dispute Cases (4) Article 5 The laborer is assigned to work in a new employer for reasons other than his own, and the original employer fails to pay economic compensation, and the laborer terminates the labor contract with the new employer according to Article 38 of the Labor Contract Law, or the new employer proposes to terminate or terminate the labor contract with the laborer, which is required by the laborer when calculating the working years for paying economic compensation or compensation.
If the employing unit meets any of the following circumstances, it shall be deemed as "the laborer has been assigned to a new employing unit for reasons other than his own":
(a) the laborer is still working in the original workplace and post, and the subject of the labor contract is changed from the original employer to a new employer;
(2) The employing unit mobilizes workers in the form of organizational appointment or delegation;
(3) Employees are transferred due to the merger or division of the employing unit;
(4) The employing unit and its subordinate enterprises conclude labor contracts with the laborers in turn;
(5) Other reasonable circumstances.