title: Add time to string data/time
body: <p>I am trying to pass a time stamp to my API that comes in the format of <code>YYYY-MM-DD HH:MM:SS</code> but i need to manipulate the time to add 5 hours.</p>
  <p>Have I done something wrong here? Do I need to convert it to a JavaScript date first?</p>
  <pre><code>var manDate = &quot;2020-08-16 16:15:00&quot;
  manDate.setHours(manDate.getHours() + 5);
  data.manDate = manDate
  console.log(manDate)
  </code></pre>
  <p>Expected output - 2020-08-16 21:15:00</p>