condition mean min max 4 h after light 273.002243 103.049796 442.95469 8 h after light 289.0349275 281.014897 297.054958 12 h after light 413.134708 298.183458 528.085958 4 h after dark 1120.489725 753.439701 1487.539749 8 h after dark 978.040034 955.453614 1000.626454 12 h after dark 1194.750677 1194.750677 1194.750677