I let mine free range from around 3pm till they put themselves away at dusk. The reason I wait until the afternoon is because I have a young St Bernard pup that I can't trust. I can't call her off when she chases them and don't know what she'd do if she caught one so she can hold her bladder and doesn't need to go out to pee until after the chickens put themselves away. I know I need to work on the dog but......