condition mean min max 3 h after light 5.789013333333333 4.66416 7.06169 6 h after light 6.02595 3.23438 8.01479 9 h after light 7.427116666666667 3.41078 11.2992 12 h after light 7.858453333333333 3.56309 11.1383 3 h after dark 17.9353 16.4709 20.0291 6 h after dark 24.7805 21.8459 28.7473 9 h after dark 18.6682 15.8343 20.8788 12 h after dark 12.29164 9.66502 13.6183