Regex to validate date formats dd/mm/YYYY, dd-mm-YYYY, dd.mm.YYYY, dd mmm YYYY, dd-mmm-YYYY, dd/mmm/YYYY, dd.mmm.YYYY with Leap Year Support - Stack Overflow
Regex to extract dates from pdfs - Automation - DEVONtechnologies Community
Regex for Date and time picker javascript - Stack Overflow