condition mean min max 4 h after light 1194.417222 1005.243333 1303.015 8 h after light 1779.027778 1755.836667 1815.886667 12 h after light 2058.785555666667 1771.066667 2532.106667 1.5 h after dark 1826.8088890000001 1549.006667 2270.623333 5.5 h after dark 1359.9911113333333 1062.676667 1682.506667 9.5 h after dark 982.0966666666667 774.7166667 1330.78