Yes, me too! at 6 or 7 pm : blin! I took it from my father, he was a fantastic man, very original, a physiologist, and worked mainly in the night. My mother got mad at him because she instead was awake at 5 even! but of the two, the one who came out to be the most "efficient" professionally was my father. This has always encouraged me to do things my way.
Try the warrior diet (maybe adapting it to your favourite foods), you'll love it!