condition mean min max 4 h after light 1834.991564 1737.460146 1932.522982 8 h after light 2259.398831 1775.30898 2743.488682 12 h after light 2350.171743 2229.893536 2470.44995 4 h after dark 2738.6023649999997 2682.085792 2795.118938 8 h after dark 2695.9310705 2470.336179 2921.525962 12 h after dark 1365.173257 1365.173257 1365.173257