Zingtree is able to validate date input for specific formats, like these:

• 09/30/2020 (USA standard format, 2 digit month, 2 digit day, 4 digit year)
• 30/09/2020 (European format, 2 digit day, 2 digit month, 4 digit year)

To trigger date format validation, you must choose a date format using the Settings tool, under the Languages tab.

USA date validation: Use mm/dd/yy as the date format.
Demo here

European date validation: Use dd/mm/yy as the date format.
Demo here