condition mean min max 4 h after light 1442.9 1442.9 1442.9 8 h after light 1737.25 1657.4 1817.1 12 h after light 1960.4 1749.7 2171.1 4 h after dark 2429.8 2268.2 2591.4 8 h after dark 2320.05 1965.2 2674.9 12 h after dark 1878.8000000000002 1497.7 2259.9