condition mean min max 4 h after light 2579.0360585 2288.316294 2869.755823 8 h after light 2790.0232965 2471.484904 3108.561689 12 h after light 2777.121648 2746.496871 2807.746425 4 h after dark 2704.138478 2692.837205 2715.439751 8 h after dark 2796.8188609999997 2610.788595 2982.849127 12 h after dark 2705.340938 2705.340938 2705.340938