condition mean min max 0 h after light 7.795895 7.64771 7.94408 2 h after light 6.01294 5.19714 6.82874 4 h after light 5.4796 4.95322 6.00598 8 h after light 9.05743 8.4523 9.66256 12 h after light 8.521795000000001 8.01504 9.02855 2 h after dark 6.128545 5.85705 6.40004 4 h after dark 5.96826 5.53175 6.40477 8 h after dark 4.66942 4.56 4.77884 12 h after dark 6.50887 6.38189 6.63585