condition mean min max 4 h after light 1350.4 1350.4 1350.4 8 h after light 1375.75 1357.1 1394.4 12 h after light 1493.6 1017.4 1969.8 4 h after dark 1656.95 1600.4 1713.5 8 h after dark 1426.35 1253.5 1599.2 12 h after dark 1435.0 1360.1 1509.9