condition mean min max 4 h after light 408.87075100000004 335.675876 482.065626 8 h after light 504.03497600000003 431.285607 576.784345 12 h after light 520.2649925000001 479.451774 561.078211 4 h after dark 841.129942 722.711513 959.548371 8 h after dark 700.961372 612.961797 788.960947 12 h after dark 539.684835 539.684835 539.684835