code: public static String formatDate(String dateValue, FastDateFormat sdf) {
          try {
              return FDF_OUT_DAY.format(sdf.parse(dateValue));
          } catch (ParseException ex) {
              LOG.debug(String.format("Fehler beim Parsen des Datums %s: %s", dateValue, ex.getMessage()));
          }
          
          return "";
      }
docs: formats a date/datetime string to the date format used in DatenFilm
  @param dateValue the date/datetime value
  @param sdf the format of dateValue
  @return the formatted date string