condition mean min max 4 h after light 531.193 478.983 583.403 8 h after light 516.679 447.617 585.741 12 h after light 532.7715000000001 528.892 536.651 4 h after dark 879.034 782.689 975.379 8 h after dark 863.3885 855.743 871.034 12 h after dark 731.049 679.104 782.994