using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var str = @"New Delhi 19 Oct 2016 12:30 Hrs New Delhi - T-1D";

        var regex = new Regex(@"\d+ .{3} \d{4} \d+\:\d+");

        var m = regex.Match(str).Value;

        Console.WriteLine(m);

        DateTime dt = Convert.ToDateTime(m);

        Console.WriteLine(dt);

    }

}