Custom long date, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Globalization;
using System.Threading;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CultureInfo ci = new CultureInfo("es-ES");
    Console.WriteLine("Current culture: \"{0}\"\n", ci.Name);
            //Your code goes here
            Console.WriteLine("Hello, world!");
            Thread.CurrentThread.CurrentCulture = ci;
            DateTime myDateTime = new System.DateTime(2001, 5, 16, 3, 2, 15);
             Console.WriteLine("Long date pattern: \"{0}\"", ci.DateTimeFormat.LongDatePattern);
        Console.WriteLine("Long date string:  \"{0}\"\n", myDateTime.ToLongDateString());
            Console.WriteLine("Long date string:  \"{0}\"\n", myDateTime.ToString("d MMMM yyyy"));
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,16 sec, absolute running time: 0,08 sec, cpu time: 0,06 sec, average memory usage: 13 Mb, average nr of threads: 3