This graph does not show how people use their time. It shows how people claim to use their time. The caption clearly says "The American Time Use Survey asks tho

This graph does not show how people use their time. It shows how people claim to use their time. The caption clearly says "The American Time Use Survey asks thousands of American residents to recall every minute of a day." Not only is it just what people claim to be doing, it's what they claim to be doing while later reflecting on it. I don't have the slightest idea what I was doing at 1:00 this afternoon. I would probably guess eating lunch, but that could just as likely be wrong. Also, I'd be much more apt to claim to be eating lunch than wasting time with the TV or by just sitting around doing nothing. I'm not suggesting the graph is completely unreliable. I'm just saying you need to consider that certain aspects of the graph will be influenced by the human nature to lie and to remember imperfectly.