Dears,
Wondering how to display blog pages by publication date?
The first two blog posts were displayed in order of publication, but when I posted the third post, for some reason it appears in the middle of the list.

Thank you Neuron.
It would be more logical to display blog pages starting with the most recent entry and ending with the oldest. No one would want to open a blog section and see the same oldest posts again... If we'll have for example 10 posts, then we would like to show the most recent on the first page, the next 3 on page 2, and latest - on page 3, etc.
Would it be possible to change the order, please?

Brilliant! Thank you very much. Have a nice day!

One end fixed, the other collapses... :(
After fixing the order of blog pages,  also the product order were changed. So I tried to arrange then manually, but id doesn't work anymore - the products also rearranges by publishing date. Could we leave possibility to order product pages manually, please?

Hi,
I removed the code that you wrote below from Child theme files > functions.php. 

Hi,

Yes, the order of blog pages are OK now, but the order of the products becomes messy (the order of the products was also changed when you added the code). I tried to arrange then manually once again, but id doesn't work anymore - the products also rearranges by publishing date. Could we leave possibility to order product pages manually, please? The order of the products are more important for as then the order of blog pages.

Hi,

I remove the code that I've added before and added a new one at the Child theme files > functions.php file.

Now everything has become as it was in its initial state (without any code): the order of products are OK now (sortable again), but blog pages somehow are still not in order.

Looks like I already find and fixed the issue. I changed "blog" to "tinklarastis"  and the code works now.

function prefix_modify_query_order( $query ) {
  if ( is_page('tinklarastis') ) {
 
    $args =  array( 'post_date' => 'ASC' );
 
    $query->set( 'orderby', $args );
  }
}
add_action( 'pre_get_posts', 'prefix_modify_query_order' );

Just found another issue: as I already mentioned, I would like to display blog pages starting with the most recent entry and ending with the oldest. The code did just the opposite. But I already find a solution to this issue, too (writing just in case if someone reads this public ticket and wants to take advantage of the solution): "ASC" changed to 'DEC' in the code: 

function prefix_modify_query_order( $query ) {
  if ( is_page('tinklarastis') ) {
 
    $args =  array( 'post_date' => 'DEC' );
 
    $query->set( 'orderby', $args );
  }
}
add_action( 'pre_get_posts', 'prefix_modify_query_order' );

NB: blog = tinklarastis in my local language I use for my webpage, so this was a reason I must change the code accordingly (no need to do so for the those who use English)