condition mean min max 0 h after light 9.32831 8.36502 10.2916 2 h after light 10.310655 9.99141 10.6299 4 h after light 8.050955 7.92933 8.17258 8 h after light 11.31912 9.35084 13.2874 12 h after light 26.8809 25.8506 27.9112 2 h after dark 26.77565 24.2269 29.3244 4 h after dark 17.42205 15.7263 19.1178 8 h after dark 16.9404 16.2326 17.6482 12 h after dark 10.61065 10.4277 10.7936