using System;

using System.Collections.Generic;

using System.Linq;

using System.Globalization;                 

public class Program

{

    public static void Main()

    {

         DateTime currentDate = DateTime.Now; // let it be 27-06-2016 13:06

         string format = "dd-MM-yy HH:MM tt";

         string formatedDateTime = currentDate.ToString(format, CultureInfo.InvariantCulture);

         Console.WriteLine("formatted DateTime :{0}", formatedDateTime);

    }

}