Thank you Bob, it works dd-mm-yy but not with other format like dd-M-yy or else. It’s ok anyway, better than nothing.
Cheer!
The same for me, if I change the default value of date format from mm/dd/yy to dd/mm/yy or M/dd/yy or dd/M/y it picks and shows the date correctly on form, but when you submit you get an “invalid date value” error message. It works only with the default date-format.