condition mean min max 4 h after light 931.242092 846.163862 1016.320322 8 h after light 973.7242925 830.831913 1116.616672 12 h after light 1123.1228445000002 934.901339 1311.34435 4 h after dark 1433.5727015 1103.734777 1763.410626 8 h after dark 1391.6030495 1158.539749 1624.66635 12 h after dark 862.572581 862.572581 862.572581