condition mean min max 4 h after light 11.087371000000001 10.544484 11.630258 8 h after light 11.4037 11.092893 11.714507 12 h after light 12.4793965 10.829067 14.129726 4 h after dark 11.933019999999999 11.092893 12.773147 8 h after dark 10.848018 10.603143 11.092893 12 h after dark 11.021724 11.021724 11.021724