my $parser = XML::LibXML->new->parse_file($file); my $xml = XML::LibXML::XPathContext->new($parser); $xml->registerNs($string,'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2'); #### for my $key ($xml->findnodes('//x:Lap')) { $string = norm_date($key->findvalue("\@StartTime")); } #### for my $node ($xml->findnodes('//y:Trackpoint')) { $time = $node->findvalue("Time"); push @X,$time; } #### for my $node ($xml->findnodes("//y:Trackpoint")) { for my $ch ($node->childNodes) { $time = norm_date($ch->textContent)-$epoch if $ch->nodeName =~ /Time/; } push @X,$time; }