Darwin Core term name: dcterms:modified. The most recent date-time on which the resource was changed. For Darwin Core, recommended best practice is to use an encoding scheme, such as ISO 8601:2004(E).

public DateTime Modified { get; set; }

Public Property Modified As DateTime
	Get
	Set

public:
property DateTime Modified {
	DateTime get ();
	void set (DateTime value);
}

member Modified : DateTime with get, set