My son Patrick has set what I would think is an odd schedule for doing schoolwork. My husband requires that he wake up with the other kids so he gets up a 7 eats breakfast, gets dressed, and usally does his history reading for the day. Then he turns around and goes back to sleep for 2 hours, gets up eats and then does math or science. Then after every one goes to bed at 8pm he pulls out the rest of his work and just gets it all done with no problem.
So even though this seems weird to me, one of the nice things about homeschooling him is that he gets to work when his brain works the best. And I get to shake my head and hope that some day he finds a job working 3-11.