condition mean min max 4 h after light 317.596292 294.960527 340.232057 8 h after light 237.38358799999997 175.539749 299.227427 12 h after light 213.70177950000001 169.479195 257.924364 4 h after dark 171.1114455 161.211272 181.011619 8 h after dark 215.5792555 197.105875 234.052636 12 h after dark 346.072984 346.072984 346.072984