Show WooCommerce sale prices date on shopping page. Filter Adjust date format: add_filter( 'sale_date_format', 'my_custom_sale_date_format' ); function my_custom_sale_date_format() { return 'r'; } Adjust label: add_filter( 'sale_date_label', 'my_custom_sale_date_label' ); function my_custom_sale_date_label() { return 'Valid until'; }<h3>Contribute</h3> Contributions are always welcome. Simply head over to Github and create an issue or open a pull request.