Please open its helppatch, input in formate yyyy/mm/dd (or wait for it).
Months are replaced by minutes.
Ciao
Nope, no bug: http://msdn.microsoft.com/en-us/library/vstudio/8kb3ddd4(v=vs.100).aspx
mm is Minutes, MM is month by definition.
Edit: but, yes, wrong (or misleading) helppatch :).
danks for notice. updated.