In contrast, Jack Ma, co-founder of Chinese online shopping giant Alibaba, has championed 12-hour working days.
In April 2019, he described the "996" pattern, in which workers do 09:00-21:00 shifts, six days a week, as "a blessing".
A report commissioned by the Labour Party in the UK suggested a four-day working week with capped hours would be "unrealistic".
"Even though some people are compelled to work shorter hours than they want to, most people are compelled to work longer hours than they want to," the report. released in September, said.
Many workers find going part-time or reducing their days means they end up having to squeeze the same amount of work into the time they do have.