condition mean min max 4 h after light 2334.5 2334.5 2334.5 8 h after light 2142.45 2045.8 2239.1 12 h after light 1879.9499999999998 1747.8 2012.1 4 h after dark 1655.0 1573.5 1736.5 8 h after dark 1514.4 1499.4 1529.4 12 h after dark 1538.35 1439.3 1637.4