condition mean min max 4 h after light 243.054599 228.090628 258.01857 8 h after light 280.848551 235.955617 325.741485 12 h after light 251.0013035 231.616704 270.385903 4 h after dark 332.2483175 247.341501 417.155134 8 h after dark 269.8618885 242.539749 297.184028 12 h after dark 214.956748 214.956748 214.956748