title: Convert a timestamp to a DateTime field?
body: <p>I've got a <code>DateTimeField(auto_now_add=True)</code> in my model. However, I wish to update this field, and the format I'm receiving from my API is a UNIX timestamp. Can I somehow convert the format I receive from my API to the correct one? (eg <code>1640206232</code> to 2021-12-22 20:50:32).</p>
  <p>Using postgres as my db if that matters..</p>