condition mean min max 0 h after light 5.86693 5.23332 6.50054 2 h after light 11.32387 9.58154 13.0662 4 h after light 7.313105 7.1818 7.44441 8 h after light 9.1283 8.81369 9.44291 12 h after light 9.024315 8.49062 9.55801 2 h after dark 10.620015 9.55273 11.6873 4 h after dark 6.47419 5.88111 7.06727 8 h after dark 5.82181 5.70516 5.93846 12 h after dark 7.196815 6.78948 7.60415