condition mean min max 4 h after light 1493.8 1493.8 1493.8 8 h after light 1720.85 1342.2 2099.5 12 h after light 2024.3 1775.4 2273.2 4 h after dark 1895.7 1806.2 1985.2 8 h after dark 1662.4 1448.5 1876.3 12 h after dark 1316.5 1215.2 1417.8