th</code></a> (<code><var>CCYY</var>-<var>MM</var></code>)
         </li><li><a href="http://www.w3.org/TR/xmlschema-2/#gYear" class="offsite"><code>xs:gYear</code></a> (<code><var>CCYY</var></code>)
         </li></ul><p>
         If the date/time string is not in one of these formats, then <code>NaN</code> is returned.
      </p></div><h2>Implementations</h2><p>
                  The following XSLT processors support <code>date:year</code>:
               </p><ul><li><a href="http://users.iclway.co.uk/mhk