e"><code class="docutils literal notranslate"><span class="pre">leap_year(+integer)</span></code> - <code class="docutils literal notranslate"><span class="pre">zero_or_one</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="name-of-day-3">
<span id="datep-0-name-of-day-3"></span><span id="index-3"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">name_of_day/3</span></code></a><a class="headerlin