condition mean min max 3 h after light 1.2186712 0.0 2.53797 7 h after light 2.1349165833333332 0.0 4.97752 11 h after light 1.8173505 0.0 5.14647 2 h after dark 1.4893936916666668 0.0676223 6.18644 6 h after dark 2.243038225 0.0853317 7.26432 10 h after dark 2.0160665833333336 0.0 8.09397