Anyway can get the full list of the short date?
I was able to make working days after date (from Day 1 for starting …etc), after updated version is not able to make it working.
Sorry, what do you mean when you say “the full list of the short date”? If you meant the list of possible custom date formats then it is pretty big, if not infinite. You can find the format description with some examples here: https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html