Last Updated widget for static pages

Insert this line of code wherever you want the text to appear:

Formatted in ISO date format. Insert just before the closing </body> tag

Preview:

A simpler format, which automatically matches the time format of the viewer's browser. Insert just before the closing </body> tag.

Preview:

<script>
    const date = document.lastModified;
    document.getElementById("lastUpdated").innerHTML = date;
</script>