public static string ToMonthDayString( this DateTime dateTime )
{
var dtf = System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat;
string mdp = dtf.ShortDatePattern;
mdp = mdp.Replace( dtf.DateSeparator + "yyyy", "" ).Replace( "yyyy" + dtf.DateSeparator, "" );
return dateTime.ToString( mdp );
}