title: How to work with dates in IHP ? Is there any 'default' ways?
body: <p>I'm trying to learn IHP by following the guide. And what I've noticed, that there aren't any functions and other stuff to deal with dates.</p>
  <p>For example:</p>
  <p>I wanted to change a date of a post to 'NOW()' when updating it</p>
  <pre class="lang-hs prettyprint-override"><code>    action UpdatePostAction { postId } = do
          post &lt;- fetch postId
          post
              |&gt; buildPost
              |&gt; validateIsUnique #title
              &gt;&gt;= ifValid \case
                  Left post -&gt; render EditView { .. }
                  Right post -&gt; do
                      post &lt;- post
                          |&gt; set #created_at '...' --  change '...' to something :)
                          |&gt; updateRecord
                      let t = get #title post
                      setSuccessMessage $ &quot;Post \'&quot; &lt;&gt; t &lt;&gt; &quot;\' updated&quot;
                      redirectTo PostsAction
  </code></pre>
  <p>So that is the question: What i can do with this 'set-statement' to actually change the date ? Or is there any 'already-specified' functions to do it ?</p>