How to change datetimepicker value into words in C#?

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] day = {"First","Second","Third","Fourth","Fifth","Sixth","Seventh","Eighth","Ninth","Tenth",
                            "Eleventh","Tweleveth","Thirteenth","Fourteenth","Fifteenth","Sixteeth","Seventeenth","Eighteenth","Ninteenth","twentyth",
                            "Twenty First","Twenty Second","Twenty Third","Twenty Fourth","Twenty Fifth","Twenty Sixth","Twenty Seventh","Twenty Eighth","Twenty Ninth","thirtieth","Thirty First"};
            DateTime dateValue = DateTime.Now;
            string month = String.Format("{0:MMMM}", dateValue);
            string year = ConvertNumbertoWords(dateValue.Year);
            string inWords = string.Format("{0} {1} {2}", day[dateValue.Day - 1], month, year);

        }

        public static string ConvertNumbertoWords(int number)
        {
            if (number == 0)
                return "Zero";
            if (number < 0)
                return "minus " + ConvertNumbertoWords(Math.Abs(number));
            string words = "";
           
            if ((number / 1000) > 0)
            {
                words += ConvertNumbertoWords(number / 1000) + " Thousand ";
                number %= 1000;
            }
            if ((number / 100) > 0)
            {
                words += ConvertNumbertoWords(number / 100) + " Hundred ";
                number %= 100;
            }
            if (number > 0)
            {
                if (words != "")
                    words += "and ";
                var unitsMap = new[] { "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven", "Tweleve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Ninteen" };
                var tensMap = new[] { "Zero", "Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety" };

                if (number < 20)
                    words += unitsMap[number];
                else
                {
                    words += tensMap[number / 10];
                    if ((number % 10) > 0)
                        words += " " + unitsMap[number % 10];
                }
            }
            return words;
        }
    }
}