SessionSecurityToken.KeyExpirationTime Property     
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets the time instant after which the key in this token is no longer valid.
public:
 property DateTime KeyExpirationTime { DateTime get(); };public DateTime KeyExpirationTime { get; }member this.KeyExpirationTime : DateTimePublic ReadOnly Property KeyExpirationTime As DateTimeProperty Value
The time instant at which the key expires.