To survive at Alibaba Group Holding Ltd you need to work 12 hours a day, six days a week. That’s what billionaire Jack Ma demands of his staff at China’s biggest e-commerce platform.

Ma told an internal meeting that Alibaba doesn’t need people who look forward to a typical eight-hour office lifestyle, according to a post on Alibaba’s official Weibo account. Instead, he endorsed the industry’s notorious 996 work culture – that is, 9am to 9pm, six days a week.