condition mean min max 4 h after light 2353.200555666667 2266.0 2510.966667 8 h after light 2406.987222333333 1985.195 2706.256667 12 h after light 2128.398889 1864.79 2379.03 1.5 h after dark 1818.9522220000001 1497.283333 2122.233333 5.5 h after dark 2129.9611109999996 1793.57 2455.093333 9.5 h after dark 2150.36 1819.856667 2405.013333