Nobody should work more than 8 hours per day. Somewhere around that mark, you start getting diminishing returns on additional hours. In Sweden, the work week is

Nobody should work more than 8 hours per day. Somewhere around that mark, you start getting diminishing returns on additional hours. In Sweden, the work week is 40 hours. The maximum overtime is 150 hours per year, extensible to 300 hours if the employee and the union allows it.