DateTimeFormatInfo.GetEraName(Int32) Method


Returns the string containing the name of the specified era.

 System::String ^ GetEraName(int era);
public string GetEraName (int era);
member this.GetEraName : int -> string
Public Function GetEraName (era As Integer) As String



The integer representing the era.


A string containing the name of the era.


era does not represent a valid era in the calendar specified in the Calendar property.


The era name is the name a calendar uses to refer to a period of time reckoned from a fixed point or event. For example, "A.D." or "C.E." is the current era in the Gregorian calendar.

The valid values for era are listed in the Eras property of the appropriate class derived from Calendar. For example: JapaneseCalendar.Eras displays a list of eras that are supported by this implementation.


Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. Such a change of era affects all applications that use these calendars. For more information and to determine whether your applications are affected, see Handling a new era in the Japanese calendar in .NET. For information on testing your applications on Windows systems to ensure their readiness for the era change, see Prepare your application for the Japanese era change. For features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras, see Working with eras.

Notes to Callers

If the calendar is represented by TaiwanCalendar but the CurrentCulture is not "zh-TW", then NativeCalendarName, GetEraName(Int32), and GetAbbreviatedEraName(Int32) return an empty string ("").

Applies to

See also