condition mean min max 4 h after light 497.580854 395.732532 599.429176 8 h after light 490.306658 390.403684 590.209632 12 h after light 408.04607799999997 353.883331 462.208825 4 h after dark 599.9079755 482.04703 717.768921 8 h after dark 716.3035035 648.385903 784.221104 12 h after dark 687.078211 687.078211 687.078211