condition mean min max 4 h after light 9.92387 9.76784 10.0799 8 h after light 15.762149999999998 15.4138 16.1105 12 h after light 19.863 19.4497 20.2763 4 h after dark 27.9926 26.9761 29.0091 8 h after dark 24.28845 23.8901 24.6868 12 h after dark 14.4994 13.2347 15.7641