condition mean min max 0 h after light 4.750195 4.07577 5.42462 4 h after light 6.26065 5.22404 7.29726 8 h after light 10.5534 10.0233 11.0835 4 h after dark 9.59887 8.80644 10.3913 8 h after dark 6.82604 6.30792 7.34416 12 h after dark 4.05124 3.77956 4.32292