condition mean min max 0 h after light 9.272089999999999 9.00691 9.53727 4 h after light 10.22249 9.76838 10.6766 8 h after light 12.3315 11.9838 12.6792 4 h after dark 10.681149999999999 10.4401 10.9222 8 h after dark 12.1865 11.4967 12.8763 12 h after dark 8.352565 7.24256 9.46257