title: Converting EPOCH UNIX time format using addToTime in Power Automate
body: <p>I'm using power automate flow to query the Dynatrace REST API, which returns JSON formatted output.</p>
  <p><code>startTime</code> is returned in EPOCH UNIX time format and I'm using this expression to convert it into a human readable format:</p>
  <pre><code>addToTime('1970-01-01T00:00:00Z', outputs('Compose'), 'Second')
  </code></pre>
  <p>The above expression converts 1638860388929 to 1912-06-02T12:57:37.0000000Z, whereas it should actually be Tuesday, 7 December 2021 06:59:48.929.</p>
  <p>Why is my expression giving the incorrect output?</p>