condition mean min max 4 h after light 220.8163355 166.604552 275.028119 8 h after light 249.9477195 227.007626 272.887813 12 h after light 258.848571 202.147797 315.549345 4 h after dark 188.020954 177.598111 198.443797 8 h after dark 181.0558235 165.802667 196.30898 12 h after dark 116.401674 116.401674 116.401674