The usual convention is that the early bird catches the worm but I think it's all a matter of whatever you consider success to be. I left my job a few weeks ago and I'm finally out pursuing my creative passions full-time I find myself doing whatever you might consider my actual "business" during the smaller hours.
As to whether or not anyone would consider me successful is another question entirely. But I'd like to think that as I continually reek of photo chemicals that I'm at least on the right track.
