using System;

using static System.Console;

​

public class Program {

    public static void Main() {

        var horaC1 = new DateTime(2019, 1, 1, 23, 0, 0).TimeOfDay;

        var horaC2 = new DateTime(2019, 1, 2, 6, 0, 0).TimeOfDay;

        var now = new DateTime(2019, 1, 2, 5, 0, 0).TimeOfDay;

        if (now >= horaC1 || now <= horaC2) WriteLine("Turno 3");

        now = new DateTime(2019, 1, 2, 7, 0, 0).TimeOfDay;

        if (now >= horaC1 || now <= horaC2) WriteLine("Turno 3 ---");

    }

}