Dear All, follows is my code:
   oSimpleFileAccess = createUnoService("com.sun.star.ucb.SimpleFileAccess")
   inputStream = createUNOService ("com.sun.star.io.InputStream")
   localFileTime = oSimpleFileAccess.getDateTimeModified(localFileUrl)
   serverFileTime =  oSimpleFileAccess.getDateTimeModified(serverUrl)
   REM can get right month
   print localFileTime.Month
   REM always return 0
   print serverFileTime.Month
   
   and if I get the last modified date of a local file, the method work well,
   but when the url is a remote file, 'getDateTimeModified' method always return 0
   also I want to know what method can be used to get the last updated date of 
   a  remote file.
   Please give some suggestions, thanks!