According to the documentation at http://livedocs.adobe.com/livecycle/8.2/wb_help/wwhelp/wwhimpl/common/html/wwhelp.htm?context=Workbench_ES&file=000810.html, the syntax to use the format-date function is
“format-date(strDate, (language, country, variant, timezone)?)”.
When you use this syntax, you get the following error:
0000004e ExceptionUtil E CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method “doSupports” on bean “BeanId(LiveCycle8#adobe-dscf.jar#EjbTransactionCMTAdapter, null)”. Exception data: org.jaxen.XPathSyntaxException: Expected: )