Legal basis: Article 41 of the Labor Law restricts the extension of working hours. Due to the needs of production and operation, the employer may extend the working hours after consultation with the trade unions and laborers. Generally, the daily working hours shall not exceed one hour; If it is necessary to extend the working hours for special reasons, the extended working hours shall not exceed three hours a day and thirty-six hours a month under the condition of ensuring the health of the workers.

It is illegal to work overtime on weekends. You can report it to the labor inspection department, but if you want to continue working, you'd better not be so serious. This is real life.