WCAG compliant calendar

My customers website has to comply with WCAG 2.1 (accessability guidelines Europe), since it is a semi governmental organisation. The current date/time pickers is not WCAG compliant (it is not usable for blind people and screen readers cannot work with it).

I have found an open source data picker dat is WCAG compliant. The website to freely download this is http://eureka2.github.io/ab-datepicker/

Please replace the current calendar with the above or add it as an option to be used instead of the current calendar.