I start listening at around 10:00 a.m. while I'm doing work. I stop that at around 4:00 p.m. when I finish. Then I start back up again at around 9:00 p.m. and listen while I sleep until I wake up at 6:00 a.m. to turn it off. So around 15 hours a day. I also listen to it when I game so that's an extra 2 hours.