DateTime.TryParseExact() is returning false

Question

I have the following code

public static void Main()
{
    DateTime D = new DateTime();
    D = DateTime.Now;

    string s1 = D.ToString("ddMMMMyyyy");
    Console.WriteLine(s1);

    Console.WriteLine(DateTime.TryParseExact(s1, "ddMMMyyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out D));
    Console.ReadKey();
}

Could someone please help me realise the obvious mistake I am making.

I converted DateTime.Now into a string in a custom format and tried to convert it back, but TryParseExact is returning false.

Answer 1

Short answer: MMMM does not equal MMM .

A Sidenote: parsing such strings with CultureInfo.InvariantCulture will only recognize English names, it seems that it will fail on machines with other languages.