condition mean min max 4 h after light 1383.4 1383.4 1383.4 8 h after light 1074.7 1052.2 1097.2 12 h after light 1393.0 1174.4 1611.6 4 h after dark 1364.35 1220.2 1508.5 8 h after dark 1408.9 1395.8 1422.0 12 h after dark 1384.25 1196.4 1572.1