My query (SQLITE) doesn't match anything

I have a table named IsSELECTED with 4 fields:
(date (DATETIME), morning (BOOL), noon(BOOL), night(BOOL))
which has 1 record (2015-06-08, FALSE, FALSE, FALSE).

In my servlet, I want to select this record. So, I have this query:

String timeStamp = new SimpleDateFormat("yyyy-MM-dd").format(Calendar.getInstance().getTime());

ResultSet rs = stmt.executeQuery( "SELECT morning, noon, night FROM IsSELECTED WHERE time=" + timeStamp);
      if (!rs.next()){
        System.out.println("nulllll");
      }else{   
        Shift s = new Shift(rs.getBoolean("morning"), rs.getBoolean("noon"), rs.getBoolean("night"));
       }
      }

and I get nullll. what is wrong?