condition mean min max 4 h after light 2545.6459999999997 2256.19 2762.4629999999997 8 h after light 1162.9355 786.9365 1539.608 12 h after light 366.4101 237.4764 532.6815 16 h after light 380.7041 271.0654 495.9388 4 h after dark 490.76076666666665 432.8632 571.0997 8 h after dark 1867.609 1664.614 2136.96