using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        DateTime dt = DateTime.Now;

        int[] timeOnly = Array.ConvertAll(dt.ToString("HH:mm:ss").Split(':'), int.Parse);

        TimeSpan ts = new TimeSpan(timeOnly[0],timeOnly[1],timeOnly[2]);

          if (ts >= new TimeSpan(11, 0, 0) && ts <= new TimeSpan(20, 0, 0)) {

              Console.WriteLine("InBetween");

  }

        else

            Console.WriteLine(dt.ToString("HH:mm:ss"));

        //Return Current time.

        //Console.WriteLine(dt.ToString("HH:mm:ss"));

    }

}