condition mean min max 4 h after light 925.8170729999999 915.902408 935.731738 8 h after light 1013.475411 994.078211 1032.872611 12 h after light 1438.459132 1426.295454 1450.62281 4 h after dark 1772.6167955 1636.389083 1908.844508 8 h after dark 1904.34752 1835.541613 1973.153427 12 h after dark 1707.317823 1707.317823 1707.317823