using System;
using System.Globalization;


namespace Enum
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = "Mon Jan 13 2014 00:00:00 GMT+0000 (GMT Standard Time)";
            var date = DateTime.ParseExact(s, "ddd MMM dd yyyy HH:mm:ss 'GMT+0000 (GMT Standard Time)'", CultureInfo.InvariantCulture);
            Console.WriteLine(date.ToString("yyyy-MM-dd"));
        }
    }
}