condition mean min max 4 h after light 4154.5 4154.5 4154.5 8 h after light 4629.25 4413.2 4845.3 12 h after light 5792.35 5569.3 6015.4 4 h after dark 3470.5 1407.4 5533.6 8 h after dark 1224.65 849.5 1599.8 12 h after dark 872.65 751.4 993.9