Predefined Enumeration for Month in C#

using System;
namespace Enum
{
   enum MonthName { Jan=1, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec }
   class EnumManualNumberSetup
   {
      static void Main(string[] args)
      {
         DateTime today = new DateTime(2015, (int)MonthName.Jun, 8);
         Console.WriteLine("Date of Today: {0}", today);
      }
   }
}

Date of Today: 6/8/2015 12:00:00 AM