For a blog entry, I have this meta tags:
<meta property="article:published_time" content="2015-09-07T21:54:43+00:00" />
<meta property="article:modified_time" content="2015-11-13T13:28:21+00:00" />
<meta property="og:updated_time" content="2015-11-13T13:28:21+00:00" />
However, Google only shows the published time on the search results (2015-09-07). I want it to show the last modified time (2015-11-13). What do I need to add in order to achieve this?
I compare my site with others like WPBeginner in which Google shows the updated time. The only difference in the HTML code is this meta tag:
<meta name="revised" content="Tuesday, October 20, 2015, 10:05 am" />
Nevertheless, I added this last meta tag to my site too but nothing happened.
Also, my XML sitemap includes <lastmod>
information.