condition mean min max 4 h after light 636.127749 590.32456 681.930938 8 h after light 650.2292685 634.22648 666.232057 12 h after light 806.441495 741.327735 871.555255 4 h after dark 612.7274259999999 574.476605 650.978247 8 h after dark 922.3831124999999 866.918784 977.847441 12 h after dark 415.616672 415.616672 415.616672