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GregorianCalendar.GetDayOfYear Method

Returns the day of the year in the specified DateTime.

Namespace: System.Globalization
Assembly: mscorlib (in mscorlib.dll)

public override int GetDayOfYear (
	DateTime time
)
public int GetDayOfYear (
	DateTime time
)
public override function GetDayOfYear (
	time : DateTime
) : int

Parameters

time

The DateTime to read.

Return Value

An integer from 1 to 366 that represents the day of the year in time.

The day of the year is defined as the number of days from the first day of the year. For example, GetDayOfYear for the first day of the first month returns 1, and GetDayOfYear for the last day of the last month returns the total number of days in that year, which is the same value returned by GetDaysInYear.

The following code example displays the values of several components of a DateTime in terms of the Gregorian calendar.

using System;
using System.Globalization;


public class SamplesGregorianCalendar  {

   public static void Main()  {

      // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
      DateTime myDT = new DateTime( 2002, 4, 3, new GregorianCalendar() );

      // Creates an instance of the GregorianCalendar.
      GregorianCalendar myCal = new GregorianCalendar();

      // Displays the values of the DateTime.
      Console.WriteLine( "April 3, 2002 of the Gregorian calendar:" );
      DisplayValues( myCal, myDT );

      // Adds two years and ten months.
      myDT = myCal.AddYears( myDT, 2 );
      myDT = myCal.AddMonths( myDT, 10 );

      // Displays the values of the DateTime.
      Console.WriteLine( "After adding two years and ten months:" );
      DisplayValues( myCal, myDT );

   }

   public static void DisplayValues( Calendar myCal, DateTime myDT )  {
      Console.WriteLine( "   Era:        {0}", myCal.GetEra( myDT ) );
      Console.WriteLine( "   Year:       {0}", myCal.GetYear( myDT ) );
      Console.WriteLine( "   Month:      {0}", myCal.GetMonth( myDT ) );
      Console.WriteLine( "   DayOfYear:  {0}", myCal.GetDayOfYear( myDT ) );
      Console.WriteLine( "   DayOfMonth: {0}", myCal.GetDayOfMonth( myDT ) );
      Console.WriteLine( "   DayOfWeek:  {0}", myCal.GetDayOfWeek( myDT ) );
      Console.WriteLine();
   }

}

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar:
   Era:        1
   Year:       2002
   Month:      4
   DayOfYear:  93
   DayOfMonth: 3
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        1
   Year:       2005
   Month:      2
   DayOfYear:  34
   DayOfMonth: 3
   DayOfWeek:  Thursday

*/

import System.* ;
import System.Globalization.* ;

public class SamplesGregorianCalendar
{
    public static void main(String[] args)
    {
        // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
        DateTime myDT =  new DateTime(2002, 4, 3, new GregorianCalendar());

        // Creates an instance of the GregorianCalendar.
        GregorianCalendar myCal =  new GregorianCalendar();

        // Displays the values of the DateTime.
        Console.WriteLine("April 3, 2002 of the Gregorian calendar:");
        DisplayValues(myCal, myDT);

        // Adds two years and ten months.
        myDT = myCal.AddYears(myDT, 2);
        myDT = myCal.AddMonths(myDT, 10);

        // Displays the values of the DateTime.
        Console.WriteLine("After adding two years and ten months:");
        DisplayValues(myCal, myDT);
    } //main

    public static void DisplayValues(Calendar myCal, DateTime myDT)
    {
        Console.WriteLine("   Era:          {0}",System.Convert.ToString(
            myCal.GetEra(myDT)));
        Console.WriteLine("   Year:       {0}", System.Convert.ToString(
            myCal.GetYear(myDT)));
        Console.WriteLine("   Month:      {0}", System.Convert.ToString(
            myCal.GetMonth(myDT)));
        Console.WriteLine("   DayOfYear:  {0}", System.Convert.ToString(
            myCal.GetDayOfYear(myDT)));
        Console.WriteLine("   DayOfMonth: {0}", System.Convert.ToString(
            myCal.GetDayOfMonth(myDT)));
        Console.WriteLine("   DayOfWeek:  {0}", myCal.GetDayOfWeek(myDT));
        Console.WriteLine();
    } //DisplayValues
} //SamplesGregorianCalendar

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar:
   Era:           1
   Year:       2002
   Month:      4
   DayOfYear:  93
   DayOfMonth: 3
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:           1
   Year:       2005
   Month:      2
   DayOfYear:  34
   DayOfMonth: 3
   DayOfWeek:  Thursday
*/

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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