condition mean min max 0 h after light 6.2806 6.07703 6.48417 2 h after light 4.597775 3.28605 5.9095 4 h after light 4.353845 3.51448 5.19321 8 h after light 4.952165 4.09663 5.8077 12 h after light 6.49376 6.28255 6.70497 2 h after dark 7.49092 7.38237 7.59947 4 h after dark 6.94902 6.74536 7.15268 8 h after dark 9.377365000000001 8.49443 10.2603 12 h after dark 7.008415 6.10721 7.90962