condition mean min max 4 h after light 55.535 49.6759 61.3941 8 h after light 23.75205 23.5499 23.9542 12 h after light 17.8328 17.0034 18.6622 4 h after dark 27.0495 26.4923 27.3387 8 h after dark 32.92136666666667 30.3306 34.4045 12 h after dark 58.13936666666667 56.0607 60.3678