condition mean min max 3 h after light 3.25078 3.01274 3.54532 6 h after light 3.5502833333333332 2.4363 4.45726 9 h after light 4.1364 3.82011 4.45196 12 h after light 4.7014775 4.62105 4.87696 3 h after dark 5.369163333333334 5.13055 5.50139 6 h after dark 4.84615 4.09666 6.06778 9 h after dark 3.1396033333333335 2.17132 4.09616 12 h after dark 2.862915 2.77563 2.9502