The 996 working hour system in China requires employees to work from 9:00 am to 9:00 pm, six days a week, totaling 72 hours per week. Many Chinese internet companies have adopted this system, leading to criticism as a violation of labor laws and labeled as “modern slavery”. Despite promises to eliminate the 996 system, it remains widespread. Overtime work culture in Chinese IT companies prioritizes speed and cost reduction, resulting in physical and mental health issues for workers. The controversial system has led to overwork deaths and suicides. The article highlights protests against the system, with companies like ByteDance transitioning away from 996.
https://en.wikipedia.org/wiki/996_working_hour_system