condition mean min max 0 h after light 11.23335 11.1005 11.3662 4 h after light 12.6577 12.4227 12.8927 8 h after light 10.522805 9.79861 11.247 4 h after dark 12.04005 11.5913 12.4888 8 h after dark 14.26065 13.9961 14.5252 12 h after dark 12.64255 11.1386 14.1465