condition mean min max 3 h after light 9.56657 8.22193 10.6154 6 h after light 8.83054 6.99377 10.5539 9 h after light 8.460306666666666 7.12906 10.2614 12 h after light 10.61604 9.01992 12.2249 3 h after dark 12.3214 11.3283 12.8904 6 h after dark 12.8993 11.7751 13.4818 9 h after dark 10.172343333333334 7.71793 11.9877 12 h after dark 6.4996366666666665 4.98125 7.87395