condition mean min max 4 h after light 9.44495 9.38845 9.48343 8 h after light 10.73204 10.5112 11.077069999999999 12 h after light 10.58851 10.36148 11.03309 4 h after dark 9.045773333333333 8.92191 9.27582 8 h after dark 8.605126666666667 8.42248 8.96031 12 h after dark 7.7510933333333325 7.280289999999999 7.9992