condition mean min max 4 h after light 20.8146 20.107 21.5222 8 h after light 20.188200000000002 18.2148 22.1616 12 h after light 17.44 14.0996 20.7804 4 h after dark 18.88215 17.2248 20.5395 8 h after dark 20.4651 19.4523 21.4779 12 h after dark 23.89125 21.8412 25.9413