value : StringDefault: undefined

    
 <input id="timepicker" width="312" />
 <script>
    $('#timepicker').timepicker({
        value: '13:42'
    });
 </script>

  

    
 <input id="timepicker" width="312" value="13:42" />
 <script>
     $('#timepicker').timepicker();
 </script>