condition mean min max 3 h after light 5.202916666666667 4.59635 6.30259 6 h after light 6.57417 5.05127 8.12654 9 h after light 6.78837 6.46544 7.18396 12 h after light 7.63602 5.33693 9.37731 3 h after dark 8.262426666666666 7.35149 9.07328 6 h after dark 6.709066666666667 6.08045 7.67101 9 h after dark 4.93537 4.50795 5.7403 12 h after dark 4.511425 3.86907 5.15378