Delete file depend on time using C#

          //to delete file from folder  
           string FileLocation=@"G:\File delete";
           DirectoryInfo source = new DirectoryInfo(FileLocation);
           foreach (FileInfo file in source.GetFiles())
            {
                var creationTime = file.CreationTime;
               //or
                var lasttime = file.LastAccessTime;

                if (creationTime < DateTime.Now)
                {
                  file.Delete();
                }
            }