condition mean min max 4 h after light 1254.4 1254.4 1254.4 8 h after light 1297.0 1242.8 1351.2 12 h after light 1334.05 1312.3 1355.8 4 h after dark 1551.3000000000002 1355.4 1747.2 8 h after dark 1820.55 1786.6 1854.5 12 h after dark 1808.7 1800.4 1817.0