Sets a string that indicates the date and time when the file was created.
fileInstance.CreationTime = newCreationTime
|string||newCreationTime||The new date and time when the file was created.|
file f = new file("c:\somewhere...");
f.CreationTime = "3/04/2016 4:13:00";
It's a wrapper of the System.IO.FileInfo.CreationTime property.
The date and time string is converted to the C#'s DateTime type by the System.DateTime.Parse(String) method.
Links for reference