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DateTimeOffset.AddYears Method

Adds a specified number of years to the DateTimeOffset object.

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

public DateTimeOffset AddYears(
	int years
)

Parameters

years
Type: System.Int32

A number of years. The number can be negative or positive.

Return Value

Type: System.DateTimeOffset
A DateTimeOffset object whose value is the sum of the date and time represented by the current DateTimeOffset object and the number of years represented by years.

ExceptionCondition
ArgumentOutOfRangeException

The resulting DateTimeOffset value is less than MinValue.

-or-

The resulting DateTimeOffset value is greater than MaxValue.

Unlike most of the other methods that add a single time interval unit (such as minutes or days) to a date and time value, AddYears does not enable you to add fractional parts of a year. To add a time that consists of other time units in addition to years to a DateTimeOffset object, use the Add method.

NoteNote:

This method returns a new DateTimeOffset object. It does not modify the value of the current object by adding months to its date and time.

In the United States, driver's licenses cannot be issued to persons under 16 years of age. The following example displays the latest possible date on which a person must be born in order to legally be issued a driver's license.

const int minimumAge = 16;
DateTimeOffset dateToday = DateTimeOffset.Now;
DateTimeOffset latestBirthday = dateToday.AddYears(-1 * minimumAge);
Console.WriteLine("To possess a driver's license, you must have been born on or before {0:d}.", 
                  latestBirthday);

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5 SP1, 3.0 SP1, 2.0 SP1

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