condition mean min max 4 h after light 1416.1 1416.1 1416.1 8 h after light 1063.0 858.5 1267.5 12 h after light 1053.8000000000002 841.7 1265.9 4 h after dark 1307.85 888.8 1726.9 8 h after dark 1500.35 1358.6 1642.1 12 h after dark 1487.8 1227.0 1748.6