condition mean min max 4 h after light 3.57798 3.25749 3.89847 8 h after light 3.66803 3.53258 3.80348 12 h after light 7.25415 7.04694 7.46136 4 h after dark 10.609549999999999 10.2463 10.9728 8 h after dark 11.928 11.4274 12.4286 12 h after dark 9.3083 9.02981 9.58679