I am most productive from 06:00 until 14:00, but that's also the time I sleep best. If I am on a job, I make do with mediocre sleep and good working hours. I just need to sleep a little more than usual. Unemployed as I currently am, I very much enjoy sleeping during these times, I feel GREAT when I get up.

Amurkans note: I used Military Time, it would be 6 AM through 2 PM in your timezone...