Countdown reminders are often used in daily life, especially when it is necessary to limit time or remind users to perform a task. It can be used in various scenes, such as kitchen timer, countdown training in fitness application, countdown in games, etc. The purpose of warm reminder is to remind users to stay focused or complete tasks in a specific period of time in a concise and practical way. This kind of warmth can attract people's attention, arrange time efficiently or accomplish goals.