This is a partial copy of my previous post re reduced work hours: A German startup that develops websites, apps and e-commerce platforms (Rheingans Digital Enabler), has a five-hour day work policy. Employees come to work at 8am (apparently 8am is not even strictly enforced) and leave at 1pm. Apparently productivity is kept up by cutting out the fat - cell phones are turned off, company emails are checked only twice a day and meetings are kept to 15 mins. The company was profitable in 2018, its first full year in business. A San Diego startup (Tower Paddle Boards) experimented with five-hour workdays and after two years limited it to the summer months only. This is all reported in the WSJ.