condition mean min max 0 h after light 10.45215 10.259 10.6453 4 h after light 8.07299 7.27616 8.86982 8 h after light 8.74927 7.30734 10.1912 4 h after dark 10.9513 10.8197 11.0829 8 h after dark 10.293 10.2647 10.3213 12 h after dark 10.7476 10.5128 10.9824