diff --git a/inc/tz/expand.php b/inc/tz/expand.php
index 9fe0edbf..781ee4be 100644
--- a/inc/tz/expand.php
+++ b/inc/tz/expand.php
@@ -163,7 +163,7 @@ $vtz = new vCalendar($tz->vtimezone);
 
 $response = new XMLDocument(array("urn:ietf:params:xml:ns:timezone-service" => ""));
 $timezones = $response->NewXMLElement('urn:ietf:params:xml:ns:timezone-service:timezones');
-$qry = new AwlQuery('SELECT to_char(max(last_modified),\'YYYY-MM-DD\"T\"HH24:MI:SS"Z"\') AS dtstamp FROM timezones');
+$qry = new AwlQuery('SELECT to_char(max(last_modified),\'YYYY-MM-DD"T"HH24:MI:SS"Z"\') AS dtstamp FROM timezones');
 if ( $qry->Exec('tz/list',__LINE__,__FILE__) && $qry->rows() > 0 ) {
   $row = $qry->Fetch();
   $timezones->NewElement('dtstamp', $row->dtstamp);
diff --git a/inc/tz/list.php b/inc/tz/list.php
index 74075c8f..b8281f0e 100644
--- a/inc/tz/list.php
+++ b/inc/tz/list.php
@@ -13,7 +13,7 @@ require_once('vComponent.php');
 
 $response = new XMLDocument( array("urn:ietf:params:xml:ns:timezone-service" => "") );
 $tzlist = $response->NewXMLElement('timezone-list');
-$qry = new AwlQuery('SELECT to_char(max(last_modified),\'YYYY-MM-DD\"T\"HH24:MI:SS"Z"\') AS dtstamp FROM timezones');
+$qry = new AwlQuery('SELECT to_char(max(last_modified),\'YYYY-MM-DD"T"HH24:MI:SS"Z"\') AS dtstamp FROM timezones');
 if ( $qry->Exec('tz/list',__LINE__,__FILE__) && $qry->rows() > 0 ) {
   $row = $qry->Fetch();
   $tzlist->NewElement('dtstamp', $row->dtstamp);
@@ -22,7 +22,7 @@ else {
   $tzlist->NewElement('dtstamp', gmdate('Y-m-d\TH:i:s\Z'));
 }
 
-$sql = 'SELECT our_tzno, tzid, active, to_char(last_modified,\'YYYY-MM-DD\"T\"HH24:MI:SS"Z"\') AS last_modified, olson_name, vtimezone FROM timezones';
+$sql = 'SELECT our_tzno, tzid, active, to_char(last_modified,\'YYYY-MM-DD"T"HH24:MI:SS"Z"\') AS last_modified, olson_name, vtimezone FROM timezones';
 $params = array();
 $where = '';
 if ( $returnall !== true ) {