SERP - Google Rich Snippets showing the wrong date for updated post

Question

When I update my post, changing the date of publication, Google News reads me the right date and Google SERP classic not (as you can see in the pictures).

What am I doing wrong?

Here is my code:

<p style="color:red"><b>Published:</b> 
    <time itemprop="datePublished" datetime="<?php the_time('c');?>"> 
    <?php the_modified_date();?> </time></b> 

- <b>Modified:</b> <time itemprop="dateModified" datetime="<?php the_modified_date('c');?>"> 
   <?php the_modified_date();?> at <?php the_modified_time('G:i');?></time></b>
</p></div>

Answer 1

I had the same problem with landing pages. The problem in my case was that Google was showing the publication date of embedded media I had on the page.

Does your page show a video of any sort? If so, check the publication date of that video and see if it corresponds with the publication date.

If this was your problem and you want to learn more you can check out my blog post for full info:

http://cgrundy.com/solving-an-incorrect-publication-date-in-the-serps/

Answer 2

My pages are clear video (at least apparently) and other dates. In my case google writes the date of first publication. To me the code is the same as yours, the dates in my template are these:

and then in the content:

23 November 2016

The date view on google SERP instead is 4 hours ago (or the first date of publication). If it worked would have to write 30 minutes ago.