All day! If I can, I try to only set timers for 8 hours. Not that I always sleep 8 hours, just that I goto bed whenever I'm tired, and wakeup when I'm well re

All day! If I can, I try to only set timers for 8 hours. Not that I always sleep 8 hours, just that I goto bed whenever I'm tired, and wakeup when I'm well rested. The rest of the time I work. That being said, I also take a day off, an afternoon off, etc. just to keep myself from burning out. Some people don't work well in a routine manner. Startups are so dynamic too, so if you're in that realm of things, it's almost impossible to have a routine schedule. Going to bed every night, knowing you won't have to wakeup for 8 hours, is really comforting. I usually wakeup before my timer goes off, but it's way better sleep. Unfortunately this can't always happen, especially with meetings and such.