This is a i18n option! i18n options can not be set directly on a per-instance basis, you must include the "override" directive, and properly camel case the new name - (i.e. overrideMonthsOfYearShort). For more information, please
take a look at the
When using short months as output (and input), make sure that there are 12 unique short names. If you use too shot of an abbreviation (ex. Ju = June, Ju = July), not only is your outputted date ambiguous to the user, it also cannot be reliably
re-read by DateBox.