public static function timeSelector($prefix, $editable, $timestamp = null)
 {
     if ($editable) {
         $minutes = CentralNotice::paddedRange(0, 59);
         $hours = CentralNotice::paddedRange(0, 23);
         // Normalize timestamp format...
         $ts = wfTimestamp(TS_MW, $timestamp);
         $fields = array(array("hour", "centralnotice-hours", $hours, substr($ts, 8, 2)), array("min", "centralnotice-min", $minutes, substr($ts, 10, 2)));
         return CentralNotice::createSelector($prefix, $fields);
     } else {
         global $wgLang;
         return $wgLang->time($timestamp);
     }
 }