I’d like to include published and modified time of an article. I looked through documentation and cannot find info about this.
So far, I got this:
<article>
<h2>Summer</h2>
<p>Also the favorite word of <strong>5000</strong> people more</p>
<time pubdate="2009-11-13">1s</time>
<time datetime="2009-11-13">10s</time>
</article>
The time
element can’t have a pubdate
attribute. (It was part of early drafts, but it got removed.)
HTML5 itself doesn’t provide a way to specify that a date is a publication or a modification date.
If you need to specify this in a machine-readable way, you could use an appropriate vocabulary. For example, the vocabulary Schema.org defines the properties datePublished
and dateModified
for CreativeWork
(and its sub-types).