condition mean min max 4 h after light 751.8149145 625.474695 878.155134 8 h after light 825.4446685 701.278608 949.610729 12 h after light 628.312342 591.123034 665.50165 4 h after dark 722.183865 552.924364 891.443366 8 h after dark 717.0594490000001 679.38665 754.732248 12 h after dark 590.556891 590.556891 590.556891