condition mean min max 0 h after light 8.34209 8.3199 8.36428 4 h after light 7.228815 5.25201 9.20562 8 h after light 12.43375 11.8731 12.9944 4 h after dark 13.84355 11.903 15.7841 8 h after dark 9.00993 8.6218 9.39806 12 h after dark 7.122764999999999 6.38559 7.85994