condition mean min max 4 h after light 9.36698 8.63466 10.0993 8 h after light 11.055505 9.62711 12.4839 12 h after light 5.006635 3.89737 6.1159 4 h after dark 5.835170000000001 5.22627 6.735 8 h after dark 4.10799 3.26306 4.81849 12 h after dark 10.23255 9.87795 10.6469