tionalized strings.
Use the <a href="https://pub.dartlang.org/packages/intl">intl</a> package
at the pub shared packages repo.</p>
<p>The resulting string can be parsed back using <a href="dart-core/DateTime/parse.html">parse</a>.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">String toString() {
  String y = _fourDigits(year);
  String m = _twoDigits(month);
  String d = _t