Datetimepicker with fullCalendar hour hour

I have a bit looking a lot after the hour and minutes are set at http://trentrichardson.com/examples/timepicker/ datetimepicker, but still I can't get it to work.

var start = $('#eventStart').datetimepicker({

     dateFormat: "yy-mm-dd",
     hour: 12,
     minute: 15,
     stepMinute: 15
});

      

        
        
        
      

    

and my input symbol is a handshake

My question is how to set a time like 12:15 pm with the currently selected date from my fullCalendar

select: function(start, end, allvDay) {

     $('#eventStart').datepicker("setDate", new Date(start));
     $('#eventEnd').datepicker("setDate", new Date(end));
     $myCalendar.fullCalendar('unselect');
     $("#calEventDialog").dialog("option", "title", "Add Event");
     $('#calEventDialog').dialog('open');

  },

      

        
        
        
      

    

I am getting this print in firebug "Date string parsing error: extra / unverified characters found at date: 12:15"

anyone who can help me,

// Tobias