Could anyone tell me how I can show the modified date from posts to my readers? I use Wordpress Twenty Fourteen with the Twenty Fourteen Extended plugin. Structured Data testing Tool already shows this code so I think this should be alright for rich snippets:
<meta property="article:modified_time" content="2015-08-18T17:48:22+00:00" /> <meta property="og:updated_time" content="2015-08-18T17:48:22+00:00" />
But only the publised date is shown on my site.