When Cecil was little, I had him out from about 9PM to midnight, give or take. As he got older, I'd take him out more like 7 or 8PM until 10 or 11. He was very mad in the mornings and in the afternoons between about 4PM-7PM. He was an angel between about noon to 3PM. LOL all these kids are a little different.
He was always a lazy boy, so no matter when I took him out he'd just want to curl up and nap.