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External Data Source

Source

Regular Expression
^(?:((31\/(Jan|Mar|May|Jul|Aug|Oct|Dec))|((([0-2]\d)|30)\/(Jan|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec))|(([01]\d|2[0-8])\/Feb))|(29\/Feb(?=\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))\/((1[6-9]|[2-9]\d)\d{2})$