[% USE df = DateTime::Format('DateTime::Format::Strptime',
   { pattern => '%F %T',
   locale => 'en_US',
   time_zone => 'GMT' }) -%]
<?xml version="1.0" encoding="utf-8"?>
<feed>
[% FOR c IN changed -%]
<item>
 [% IF c.value.creation %]<created>[% df.format(c.value.creation) %]</created>[% END %]
 [% IF c.value.last_change %]<last>[% df.format(c.value.last_change) %]</last>[% END %]
 <PH>[% dstUriFor(c.key) %]</PH>
</item>
[% END -%]
</feed>