condition mean min max 4 h after light 7.53116 6.98096 8.08136 8 h after light 12.284099999999999 11.3119 13.2563 12 h after light 13.310015 9.92633 16.6937 4 h after dark 22.27635 19.3957 25.157 8 h after dark 26.48505 25.9914 26.9787 12 h after dark 20.74405 13.9008 27.5873