Where do the English letters in the date come from?

Question

HTML

Guys, help me understand where the legs grow from the English letters st and th, which are added to the publication date of the posts
https://normativ.org/?s=%D1%87%D1%82%D0%BE
For the output of this information, as I understood this function answers

if ( $settings['post_meta_date'] ) {
        $metadata .= fusion_render_rich_snippets_for_pages( false, false, true );

        $formatted_date = get_the_time( fusion_library()->get_option( 'date_format' ) );
        $date_markup = '<span>' . $formatted_date . '</span><span class="fusion-inline-sep">|</span>';
        $metadata .= apply_filters( 'fusion_post_metadata_date', $date_markup, $formatted_date );
      } else {
        $date .= fusion_render_rich_snippets_for_pages( false, false, true );
      }

Where to dig to remove these prefixes