Reply To: using both published date and date picker to sort posts

• John Huebner

• December 12, 2018 at 1:36 am

post_date_gmt is not a meta field. Remove it from your meta query.
WP does not have an option to order posts by the post_date_gmt value, only date or “post_date”

Also, ACF does not store date fields as a date. Use number of string, and you need to set a compare or value

        'datum_clause' => array(
            'meta_key' => 'datum',
            'compare' => 'EXISTS'
        ),

Then in your order by use

    $wp_query_args['orderby'] = array(
        'datum_clause' => 'DESC',
        'date' => 'DESC'
    );