Well I work and live in Sweden (notice I put work first?) and it's far from 6hrs/day for most industries. Actually now that I think about it I don't know a single person who only works 6 hours per day. The idea is great though, wish it were true :/
It's never as real or good as you think. France's famous 35 hour workweek only really applies to people who clock in hourly wages. Even there, it's merely the number where overtime kicks in.
If you're a professional/salaried you work as much as the job requires, just like the US.