condition mean min max 3 h after light 16.9405 11.5696 20.1651 6 h after light 19.389933333333335 16.3929 23.0592 9 h after light 20.1339 18.4567 21.7039 12 h after light 22.1473 14.5959 28.7907 3 h after dark 27.244266666666668 22.5389 30.1716 6 h after dark 34.17013333333333 30.4736 41.0909 9 h after dark 24.028133333333333 23.1723 25.0526 12 h after dark 15.650549999999999 14.7799 16.5212