condition mean min max 4 h after light 776.4 776.4 776.4 8 h after light 750.55 734.9 766.2 12 h after light 823.15 733.0 913.3 4 h after dark 863.5999999999999 849.3 877.9 8 h after dark 1051.25 1030.1 1072.4 12 h after dark 1370.8000000000002 1151.2 1590.4