In sales events like Black Friday, or Christmas Eve, we often see messages "Hurry, shop now while supplies last! Today only! and 1 hour left!" displaying on online stores to encourage visitors making their last-minute purchases. However, it is possible that during checkout, your customers can change their mind. To prevent the rate of cart abandonment due to this reason, you can give your customers a last hick by using a countdown timer on your checkout page to motivate customers completing shopping.
So, here are 3 common use cases you can learn from: