xml - How to Increment 1 day in Date using XSLT -

i have scenario in need increment 1 day in existing date. in <subscriptiondate>2015-05-06</subscriptiondate> want increase 1 day , map value <terminationdate>2015-05-07</terminationdate>. how can achieve using xslt. so, date constraints should handled. if day 31 increment in month.

<subscription code="12345678r1">       <useraccount>40000005b</useraccount>       <offertemplate>test</offertemplate>       <subscriptiondate>2015-05-06</subscriptiondate>       <terminationdate></terminationdate> </subscription> 

assuming xslt 2.0 can add duration date e.g.

<xsl:template match="terminationdate">   <xsl:copy>     <xsl:value-of select="xs:date(preceding-sibling::subscriptiondate) + xs:daytimeduration('p1d')"/>   </xsl:copy> </xsl:template> 

see http://xsltransform.net/ppqshtp.