condition mean min max 4 h after light 4.87697 3.55254 6.2014 8 h after light 4.688560000000001 4.58706 4.79006 12 h after light 7.409745 6.98571 7.83378 4 h after dark 8.426483333333334 8.02847 8.71498 8 h after dark 7.581223333333333 7.22699 7.82949 12 h after dark 5.22486 4.92807 5.79374