@MATT - These are my own hours, the chart is from my github repository.
@Nick - I don't think its the time of day, it just happens to be when I can work on my passion.
HA! I need to shift to hours like this. I feel like a schlub in work before noon, yet I get a ton done after I leave the office on the start-up. Then again, this could be due to the passion/job ratio.
Source? Does this represent your hours?
I'd love to read more. It does look a lot like my working habits.