GregorianCalendar.GetEra Method

Returns the era of a specified DateTime value.

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

public override int GetEra(
	DateTime time


Type: System.DateTime
The DateTime to read.

Return Value

Type: System.Int32
An integer that represents the era of time.

The Gregorian calendar recognizes two eras: B.C. or B.C.E., and A.D. or C.E. This implementation of the GregorianCalendar class recognizes only the current era (A.D. or C.E.).

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 Example

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)

      // 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.
      outputBlock.Text += String.Format("April 3, 2002 of the Gregorian calendar:") + "\n";
      DisplayValues(outputBlock, myCal, myDT);

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

      // Displays the values of the DateTime.
      outputBlock.Text += "After adding two years and ten months:" + "\n";
      DisplayValues(outputBlock, myCal, myDT);


   public static void DisplayValues(System.Windows.Controls.TextBlock outputBlock, Calendar myCal, DateTime myDT)
      outputBlock.Text += String.Format("   Era:        {0}", myCal.GetEra(myDT)) + "\n";
      outputBlock.Text += String.Format("   Year:       {0}", myCal.GetYear(myDT)) + "\n";
      outputBlock.Text += String.Format("   Month:      {0}", myCal.GetMonth(myDT)) + "\n";
      outputBlock.Text += String.Format("   DayOfYear:  {0}", myCal.GetDayOfYear(myDT)) + "\n";
      outputBlock.Text += String.Format("   DayOfMonth: {0}", myCal.GetDayOfMonth(myDT)) + "\n";
      outputBlock.Text += String.Format("   DayOfWeek:  {0}", myCal.GetDayOfWeek(myDT)) + "\n";
      outputBlock.Text += "\n";


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



Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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