using System;

public class Program

{

    public static void Main()

    {

        // Compare values with null check

        DateTime? a = null;

        Console.WriteLine(a.HasValue ? a.Value.Date == DateTime.Today : false);

        // Compare just Dates

        DateTime? b = DateTime.Today;

        Console.WriteLine(b.HasValue ? b.Value.Date == DateTime.Today : false);

        // Compare Dates and Times

        DateTime? c = DateTime.Now;

        Console.WriteLine(c.Value == DateTime.Now);

    }

}