condition mean min max 0 h after light 269.547 268.276 270.818 4 h after light 129.538 123.219 135.857 8 h after light 48.0499 44.5116 51.5882 4 h after dark 31.0195 25.5789 36.4601 8 h after dark 135.684 124.844 146.524 12 h after dark 247.372 208.045 286.699