It sounds like something a Dilbert character would have made up, but it is actually true—people are motivated to get much more done when they are expected to work fewer hours. In an article for Slate, adapted from his book, Jeff Sutherland explains that less really can be more.
Anyway, I’m Going Home for the Day
Sutherland works as a senior adviser at OpenView Venture Partners. The business culture at OpenView once implied regularly working overtime and weekend hours, but the idea was raised to do away with overtime and weekend hours to see how productivity would change. As it turns out, productivity indeed went way up, maximizing when people worked just under 40 hours a week. People importantly stopped feeling burnt out as well. The underlying reasoning is that the longer people work and the more their energy depletes, the less inspired they are to do their best work. They become more likely to make mistakes with less energy too. The bottom line is that it truly is not lazy to just call it a day early sometimes. You can read the original article here: http://www.slate.com/articles/business/productivity/2014/10/get_more_done_by_working_fewer_hours_shorter_days_are_more_productive.2.html