condition mean min max 4 h after light 1570.095587 1401.808103 1738.383071 8 h after light 2032.3761250000002 2014.043977 2050.708273 12 h after light 2185.189708 1892.070436 2478.30898 4 h after dark 2460.2706369999996 2438.839854 2481.70142 8 h after dark 3143.5749640000004 3108.217415 3178.932513 12 h after dark 1846.463193 1846.463193 1846.463193