condition mean min max 4 h after light 2535.6137755 2399.669318 2671.558233 8 h after light 2576.8107044999997 2314.778139 2838.84327 12 h after light 2315.4141369999998 1919.616672 2711.211602 4 h after dark 2168.0762035 1483.247147 2852.90526 8 h after dark 2059.0170115 1446.75973 2671.274293 12 h after dark 2063.179094 2063.179094 2063.179094