format and display datetime in xslt
<A>
    <StartDate>2011-11-01T00:00:00</StartDate>
    <EndDate>2011-11-30T00:00:00</EndDate>
    <IsRecurring>false</IsRecurring>
</A>

01/11/2011 - 30/11/2011

<xsl:value-of select="A/StartDate/> - <xsl:value-of select="A/EndDate/>

2011-11-01T00:00:00 - 2011-11-30T00:00:00

<xsl:variable name="dt" select="'2011-11-01T12:13:59'"/>

        <xsl:value-of select="concat(
                      substring($dt, 9, 2),
                      '/',
                      substring($dt, 6, 2),
                      '/',
                      substring($dt, 1, 4)
                      )"/>

substring(replace($input, "(d{4})-(d{2})-(d{2})", "$3/$2/$1"), 0, 11)