condition mean min max 4 h after light 216.6673525 208.359624 224.975081 8 h after light 179.9975855 175.922445 184.072726 12 h after light 198.446926 184.072726 212.821126 4 h after dark 142.3325895 125.586968 159.078211 8 h after dark 164.964665 145.856604 184.072726 12 h after dark 158.001288 158.001288 158.001288