condition mean min max 4 h after light 1348.3 1348.3 1348.3 8 h after light 1349.1 1237.2 1461.0 12 h after light 1174.5 1072.2 1276.8 4 h after dark 1335.0 972.8 1697.2 8 h after dark 1688.5 1434.9 1942.1 12 h after dark 1753.25 1707.0 1799.5