condition mean min max 0 h after light 226.1855 224.702 227.669 4 h after light 535.9605 498.959 572.962 8 h after light 549.028 527.616 570.44 4 h after dark 122.219 118.581 125.857 8 h after dark 216.52100000000002 213.114 219.928 12 h after dark 234.997 226.691 243.303