condition mean min max 4 h after light 1812.4 1812.4 1812.4 8 h after light 1890.3000000000002 1772.2 2008.4 12 h after light 1872.0 1770.4 1973.6 4 h after dark 1746.2 1644.2 1848.2 8 h after dark 1559.25 1365.1 1753.4 12 h after dark 1453.65 1277.3 1630.0