title: Persian Calendar Regex Date Format
body: <p>I found a regular expression for the Persian Calendar in the <a href="http://regexlib.com/%28A%284HztpCjjEZpZP8MGOulb9GJ51r9h6YfG83tSVWuz7LF3TcIyDpkrgX3KPrt1vJMzio2hJyLkoucrkq4CvmDvpb9KDbwAbGVTMlSr-9Znir1CJ6ox0PTVaQT8zJk-m0AyHnk_Na_CxAlicu06gi6MfUwXnO_PHWvsdqMOrrhFq_HzJat2OOElwLc_ew72I4d10%29%29/REDetails.aspx?regexp_id=3262&amp;AspxAutoDetectCookieSupport=1" rel="nofollow noreferrer">link</a> but it is in the <code>yyyy/MM/dd</code> format. Any suggestion to format to <code>dd/MM/yyyy</code> and <code>MM/dd/yyyy</code>?</p>