condition mean min max 4 h after light 812.7 812.7 812.7 8 h after light 774.1 694.2 854.0 12 h after light 830.3499999999999 663.8 996.9 4 h after dark 726.7 601.8 851.6 8 h after dark 752.9 641.8 864.0 12 h after dark 876.8 724.8 1028.8