code: public int parseOffsetLocalizedGMT(String text, ParsePosition pos) {
          return parseOffsetLocalizedGMT(text, pos, false, null);
      }
docs: Returns offset from GMT(UTC) in milliseconds for the given localized GMT
  offset format string. When the given string cannot be parsed, this method
  sets the current position as the error index to <code>ParsePosition pos</code>
  and returns 0.
  
  @param text the text contains a localized GMT offset string at the position.
  @param pos the position.
  @return the offset from GMT(UTC) in milliseconds for the given localized GMT
  offset format string.
  @see #formatOffsetLocalizedGMT(int)