  filterBy="#{i.bill.createdAt}"
                                          filterMatchMode="contains"
                                          >
                                    <f:facet name="header">
                                        <h:outputLabel value="Date/Time"/>
                                    </f:facet>                                    
                                    <h:outputLabel value="#{i.bill.createdAt}"  >
                                        <f:convertDateTime pattern