condition mean min max 0 h after light 5.564405 5.38634 5.74247 4 h after light 6.4497 6.31304 6.58636 8 h after light 5.951555 4.82653 7.07658 4 h after dark 7.5342400000000005 5.98914 9.07934 8 h after dark 7.08654 7.08612 7.08696 12 h after dark 7.22701 7.18613 7.26789