condition mean min max 4 h after light 11.896315000000001 11.661561 12.131069 8 h after light 10.673112499999998 10.509882 10.836343 12 h after light 11.6743735 11.326822 12.021925 4 h after dark 10.605353000000001 10.430829 10.779877 8 h after dark 13.37091 13.024442 13.717378 12 h after dark 11.359333 11.359333 11.359333