condition mean min max 4 h after light 11.7288295 11.533945 11.923714 8 h after light 11.569128 11.533945 11.604311 12 h after light 10.546006 10.397681 10.694331 4 h after dark 12.2690695 12.228979 12.30916 8 h after dark 12.139460499999998 11.533945 12.744976 12 h after dark 10.067751 10.067751 10.067751