condition mean min max 4 h after light 50.6874 49.0423 52.3325 8 h after light 30.5578 29.4267 31.6889 12 h after light 27.41 27.1678 27.6522 4 h after dark 39.574200000000005 39.329 39.8194 8 h after dark 55.69955 52.4538 58.9453 12 h after dark 53.0243 52.1306 53.918