Integration

I need to get a date difference in number of months. This style sheet works but it returns number of days.

What do I need to do here to get months instead?

Given these inputs:

2014-11-04T11:32:28.256

2012-11-06T11:32:28.256

I get:

P698D

<?xml version="1.0" encoding="windows-1252" ?>
<xsl:stylesheet version="2.0" 
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
    xmlns:ns0="http://www.example.org"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    exclude-result-prefixes="xsl ns0 xsd ora">
<?oracle-xsl-mapper
<mapSources>
<source type="XSD">
<schema location="input.xsd"/>
<rootElement name="input" namespace="http://www.example.org"/>
</source>
</mapSources>
<xsl:mapTargets>
<target type="XSD">
<schema location="output.xsd"/>
<rootElement name="output" namespace="http://www.example.org"/>
</target>
</mapTargets>
?>
<xsl:template match="/">
<ns0:output>
<ns0:duration>
<xsl:call-template name="monthDifference">
<xsl:with-param name="date1" select="/ns0:input/ns0:date1"/>
<xsl:with-param name="date2" select="/ns0:input/ns0:date2"/>
</xsl:call-template>
</ns0:duration>
</ns0:output>
</xsl:template>
<xsl:template name="monthDifference">
<xsl:param name="date1"/>
<xsl:param name="date2"/>
<xsl:value-of select="(xsd:dateTime($date1) - xsd:dateTime($date2))"/>
</xsl:template>
</xsl:stylesheet>