Catch DateTime* exceptions (#1488497) - skipping buggy timezones

program/steps/settings/func.inc

@@ -183,12 +183,15 @@ function rcmail_user_prefs($current=null)
 
       $now = new DateTime();
       foreach (DateTimeZone::listIdentifiers() as $i => $tzs) {
+        try {
           $tz = new DateTimeZone($tzs);
           $date = new DateTime('2012-12-21', $tz);
           $offset = $date->format('Z') + 45000;
           $sortkey = sprintf('%06d.%s', $offset, $tzs);
           $zones[$sortkey] = array($tzs, $date->format('P'));
         }
+        catch (Exception $e) {}
+      }
 
       ksort($zones);
       foreach ($zones as $zone) {