nth and <code class="literal">dd</code> to indicate the position of the
        day.
       </p><p>
        The function returns the following values:
        </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
           0 - The function terminated successfully.
          </p></li><li class="listitem"><p>
           <code class="literal">ECPG_INFORMIX_ENOSHORTDATE</code> - The date does not contain
           delimiters between day, month and year