please try this:
DirectoryInfo latestfolder = new DirectoryInfo(path).GetDirectories("*",SearchOption.AllDirectories).OrderByDescending(function(d) d.CreationTime).First();
it will return the latest created folder(last modified) directory.
and let me know
and to get folder name and with date of creation see the attached sample.
Reference: latestdirdate.xaml (5.2 KB)