Please add date and time format as dd.mm.yyyy hh:mm:ss to Enterprise apps and map viewer. It is preffered date format for lot of coutries. https://en.wikipedia.org/wiki/List_of_date_formats_by_country
Another solution would be to add the possibility to specify custom date format in map viewer and the format is then used in all the apps and widgets the map is used. Currently Experience Builder table widget does not honor the date format specified in map viewer.