condition mean min max 4 h after light 5.00165 4.40652 5.59678 8 h after light 4.541125 4.26342 4.81883 12 h after light 6.124185000000001 6.10834 6.14003 4 h after dark 8.581745 8.1664 8.99709 8 h after dark 7.77004 7.76193 7.77815 12 h after dark 7.85426 7.58371 8.12481