A Date Picker is a user interface element that allows users to select a date from a calendar. It typically appears as a small calendar icon or a text field that, when clicked, opens a visual calendar. Users can navigate through months and years to choose a specific date, making it easier to input dates accurately without typing. Date Pickers are commonly used in various applications, such as online forms, booking systems, and event planning tools. They enhance user experience by providing a clear and intuitive way to select dates, reducing the chances of errors associated with manual date entry.