Hello,
There are two kinds of countdowns: sales countdown, which is presented on the product page, and shows the time left until the sales price expires. This countdown can be also shown in the product grid. This option is configured in the Theme Settings > shop page (for the shop/category page) and the option is provided in the Product Grid element/Product AJAX Tabs. https://xtemos.com/docs/basel/faq-guides-2/product-grid-carousel-element/
Another countdown is the WP Bakery page builder element, it can show the time left for any even as per your needs: https://xtemos.com/docs/basel/shortcodes/
Best Regards
.
