--- a/xml/schema/prov.xsd	Mon Sep 03 14:33:11 2012 +0100
+++ b/xml/schema/prov.xsd	Mon Sep 03 10:11:23 2012 -0400
@@ -137,7 +137,6 @@
 
   <xs:complexType name="WasInformedBy">
     <xs:sequence>
-      <xs:element name="time"    type="xs:dateTime" minOccurs="0"/>
       <xs:element name="effect"  type="prov:ActivityRef"/>
       <xs:element name="cause"   type="prov:ActivityRef"/>
       <xs:element ref="prov:label" minOccurs="0"  maxOccurs="unbounded"/>