use the Compare() method to compare DateTime instances

image_pdfimage_print
   
 
using System;

class MainClass {

    public static void Main() {
        DateTime myDateTime = DateTime.Now;
        DateTime myDateTime2 = DateTime.UtcNow;
        DateTime myDateTime3 = new DateTime(2004, 1, 13);
        DateTime myDateTime4 = new DateTime(2004, 1, 14);
        Console.WriteLine("myDateTime3 = " + myDateTime3);
        Console.WriteLine("myDateTime4 = " + myDateTime4);
        int intResult = DateTime.Compare(myDateTime3, myDateTime4);
        Console.WriteLine("DateTime.Compare(myDateTime3,myDateTime4) = " + DateTime.Compare(myDateTime, myDateTime2));

    }
}

    


display the Date, Day, DayOfWeek, DayOfYear,Ticks, and TimeOfDayProperties of myDateTime

image_pdfimage_print
   
 
using System;

class MainClass {

    public static void Main() {

        DateTime myDateTime = DateTime.Now;
        Console.WriteLine("myDateTime.Date = " + myDateTime.Date);
        Console.WriteLine("myDateTime.Day = " + myDateTime.Day);
        Console.WriteLine("myDateTime.DayOfWeek = " + myDateTime.DayOfWeek);
        Console.WriteLine("myDateTime.DayOfYear = " + myDateTime.DayOfYear);
        Console.WriteLine("myDateTime.Ticks = " + myDateTime.Ticks);
        Console.WriteLine("myDateTime.TimeOfDay = " + myDateTime.TimeOfDay);
    }
}

    


DateTime and TimeSpan Instances

image_pdfimage_print
   
 

using System;

class MainClass {
    public static void DisplayDateTime(string name, DateTime myDateTime) {
        Console.WriteLine(name + " = " + myDateTime);
        Console.WriteLine(name + ".Year = " + myDateTime.Year);
        Console.WriteLine(name + ".Month = " + myDateTime.Month);
        Console.WriteLine(name + ".Day = " + myDateTime.Day);
        Console.WriteLine(name + ".Hour = " + myDateTime.Hour);
        Console.WriteLine(name + ".Minute = " + myDateTime.Minute);
        Console.WriteLine(name + ".Second = " + myDateTime.Second);
        Console.WriteLine(name + ".Millisecond = " + myDateTime.Millisecond);
        Console.WriteLine(name + ".Ticks = " + myDateTime.Ticks);
    }
    public static void Main() {
        int year = 2008;
        int month = 8;
        int day = 25;
        DateTime myDateTime = new DateTime(year, month, day);

        int hour = 23;
        int minute = 30;
        int second = 12;
        int millisecond = 5;
        DateTime myDateTime2 = new DateTime(year, month, day, hour, minute, second, millisecond);

        System.Globalization.JulianCalendar myCalendar = new System.Globalization.JulianCalendar();
        DateTime myDateTime3 = new DateTime(year, month, day, myCalendar);

        DateTime myDateTime4 = new DateTime(0);

        DisplayDateTime("myDateTime", myDateTime);
        DisplayDateTime("myDateTime2", myDateTime2);
        DisplayDateTime("myDateTime3", myDateTime3);
        DisplayDateTime("myDateTime4", myDateTime4);

        TimeSpan myTimeSpan = new TimeSpan(4, 12, 10);
        myDateTime4 += myTimeSpan;
        DisplayDateTime("myDateTime4", myDateTime4);

    }

}

    


Offset of DateTime

image_pdfimage_print
   
 
using System;
public class MainClass {
    public static void Main() {

        DateTimeOffset local = DateTimeOffset.Now;
        DateTimeOffset utc = local.ToUniversalTime();

        Console.WriteLine(local.Offset);   // -06:00:00 (in Central America)
        Console.WriteLine(utc.Offset);     // 00:00:00

        Console.WriteLine(local == utc);                 // True
        //To include the Offset in the comparison, you must use the EqualsExact method:
        Console.WriteLine(local.EqualsExact(utc));      // False
    }
}