condition mean min max 4 h after light 4.612995 4.16544 5.06055 8 h after light 6.30381 6.27117 6.33645 12 h after light 9.50687 9.39714 9.6166 4 h after dark 10.030625 9.96485 10.0964 8 h after dark 7.438174999999999 7.38667 7.48968 12 h after dark 7.27344 7.21012 7.33676