using System;

​

public class TimePeriod

{

   private double seconds;

​

   public double Hours

   {

       get 

       { 

            return seconds / 3600; 

       }

       set 

       { 

            //if (value < 0 || value > 24)

            //    throw new System.ArgumentOutOfRangeException("value" + value+ "must be between 0 and 24.");

​

           seconds = value * 3600; 

       }

   }

}

​

public class Program

{

    public static void Main()

    {

​

var currentTime = DateTime.Now.TimeOfDay;

var start = new TimeSpan(20, 0, 0);

var end = new TimeSpan(8, 0, 0);

var midnight = new TimeSpan(24, 0, 0);

​

if (currentTime >= start || currentTime <= end)

{

    var hoursLeftUntil8 = currentTime.Hours >= 20

        ? midnight.Subtract(currentTime).Add(end)

        : end.Subtract(currentTime);

​

    Console.WriteLine("There are {0} hours, {1} minutes, and {2} seconds left until 8AM",

        hoursLeftUntil8.Hours, hoursLeftUntil8.Minutes, hoursLeftUntil8.Seconds);

}

else

{

    Console.WriteLine("It is not between 8PM and 8AM.");

}

​

Console.WriteLine("\nDone!\n\nPress any key to exit...");

       var date = DateTime.Now;

if(date.Hour >= 11 || date.Hour <12)

{

    var DateTime8 = date.Date.AddHours((date.Hour > 8) ? 24 + 8 : 8);

    TimeSpan diff = DateTime8 - date;

  Console.WriteLine(date.ToString());

}

        TimePeriod t = new TimePeriod();

       // The property assignment causes the 'set' accessor to be called.

       t.Hours = 24;

​

       // Retrieving the property causes the 'get' accessor to be called.

       Console.WriteLine("Time in hours: {0}", t.Hours);

    }

}

// The example displays the following output:

//    Time in hours: 24