title: Convert pymongo millisecond to different format
body: <p>I'm attempting to convert <code>1614100501543</code> of type 'bson.int64.Int64' to a formatted date using <code>datetime</code>:</p>
  <p>The below code:</p>
  <pre><code>print(results[0][0] , type(results[0][0]))
  
  print(datetime.utcfromtimestamp(results[0][0]).strftime('%Y-%m-%d %H:%M:%S'))
  </code></pre>
  <p>returns :</p>
  <pre><code>1614100501543 &lt;class 'bson.int64.Int64'&gt;
  ---------------------------------------------------------------------------
  ValueError                                Traceback (most recent call last)
  &lt;ipython-input-142-97decf382ca6&gt; in &lt;module&gt;
        1 print(results[0][0] , type(results[0][0]))
        2 
  ----&gt; 3 print(datetime.utcfromtimestamp(results[0][0]).strftime('%Y-%m-%d %H:%M:%S'))
  
  ValueError: year 53118 is out of range
  </code></pre>
  <p>How to set the DateTime correctly to allow correct conversion?</p>