condition mean min max 4 h after light 11.381365 9.27223 13.4905 8 h after light 19.310299999999998 18.341 20.2796 12 h after light 276.0645 260.011 292.118 4 h after dark 255.9875 250.768 261.207 8 h after dark 136.4275 136.321 136.534 12 h after dark 45.054199999999994 40.6031 49.5053