“Japanese employees work significantly longer hours than their counterparts in the US, Britain and other developed countries. Japan’s employees used, on average, only 8.8 days of their annual leave in 2015, less than half their allowance, according to the health ministry. That compares with 100% in Hong Kong and 78% in Singapore.”
Read more: https://www.theguardian.com/world/2017/oct/05/japanese-woman-dies-overwork-159-hours-overtime