title: bookshelf/knex add time to timestamp
body: <p>Using NodeJS, Knex, Bookshelf JS ORM, and PostgreSQL, I have a field <code>table.timestamp('reset_password_expires');</code> - how can I set the date for future (let's say 10 minutes from now)?</p>
  
  <p>I've tried:</p>
  
  <pre><code>new User.User({'email': email}).fetch().then((user) =&gt; {
        user.set('reset_password_expires', Date.now() + 60000);
        user.save();
        ...
  </code></pre>
  
  <p>But this throws: </p>
  
  <blockquote>
    <p>Unhandled rejection error: date/time field value out of range:
    "1544577763253"</p>
  </blockquote>
  
  <p>Also tried</p>
  
  <pre><code>user.set('reset_password_expires', 'NOW()' + '10 minutes'::interval);
  </code></pre>
  
  <p>But this is invalid syntax.</p>
  
  <p>I've also tried changing field type to <code>dateTime</code>, with the same results.</p>