Returns the expiration date of this X.509v3 certificate.
Assembly: mscorlib (in mscorlib.dll)
The expiration date is the date after which the X.509 certificate is no longer considered valid.
The method returns a string that shows the date formatted in Short Date Pattern followed by the time formatted in Long Time Pattern. The date and time are formatted using the current culture and time zone.
This method may return a different string format on Macintosh computers, although the underlying DateTime object will represent the same value.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.