condition mean min max 0 h after light 3.91678 1.95577 5.87779 4 h after light 4.917465 3.85657 5.97836 8 h after light 10.74 6.968 14.512 4 h after dark 7.2201450000000005 5.76245 8.67784 8 h after dark 10.634665 9.71213 11.5572 12 h after dark 4.808415 2.92972 6.68711