Legal analysis: graduate students are not counted as seniority. General length of service refers to the total working time of employees engaged in production and work. When calculating the general length of service, it should include the length of service of the enterprise. In the following cases, the length of service of employees before and after is calculated continuously.

Legal basis: notice on the calculation length of doctoral students and on-the-job personnel obtaining master's degrees; On-the-job staff obtained a master's degree in China, while calculate length was studying. On-the-job personnel who go abroad to study for a master's degree and return to work after the master's degree are also counted in the prescribed study period.