00:00:00Z (UTC).</p>
<p>This value is independent of the time zone.</p>
<p>This value is at most
8,640,000,000,000,000,000us (100,000,000 days) from the Unix epoch.
In other words: <code>microsecondsSinceEpoch.abs() &lt;= 8640000000000000000</code>.</p>
<p>Note that this value does not fit into 53 bits (the size of a IEEE double).
A JavaScript number is not able to hold this value.</p>
</section>
<section class="summary source-code" id="source">
  <h2><span>Implementation</span> </h2>
  <pre class="language