I'm British but recently moved to Oslo, Norway. Until recently I worked at a start-up incubator where there was talk about the 'extreme' start up work life. For Norwegians that meant that they left the office at 5pm instead of 3:30 or 4pm. By 6pm the hot desk office space was normally empty and the lights switched themselves off.
It's a tiny industry here and no-one is looking to build the next facebook, they're just looking to do interesting work whilst also having a good life.