Magento 2, You can add Datepicker or calendar in any custom form text field using simple coding. “mage/calendar” widget used for Date picker and DateTime picker in an input field.
Check for Date Range field in Magento 2.
Magento uses calendar.js for add date picker field in the custom form.
You can show the js file at the root of Magento instance /lib/web/mage/calendar.js Continue reading “Magento 2 Add DatePicker-Calender input field in custom form.”