Beihai resigned during the probation period, while Su was a few days early.

"Labor Law" stipulates that during the probation period, the employee shall notify the employer three days in advance, and leaving the job after the expiration is to terminate the labor contract according to law. Laborers can also negotiate with the employer to terminate the labor contract.

According to the Labor Contract Law

Article 36 The employing unit and the employee may terminate the labor contract through consultation.

Article 37 A laborer may terminate the labor contract by giving a written notice to the employing unit 30 days in advance. The employee may terminate the labor contract by notifying the employer three days in advance during the probation period.