condition mean min max 4 h after light 595.3 595.3 595.3 8 h after light 696.4 640.8 752.0 12 h after light 830.05 767.2 892.9 4 h after dark 832.95 799.8 866.1 8 h after dark 895.4000000000001 829.7 961.1 12 h after dark 779.8499999999999 728.3 831.4