Top Flutter Clock packages Analog clocks typically use a circular design with hour, minute, and second hands that rotate around a fixed point in the center of the clock face. The face of the clock may also include markings for the hours, minutes, and seconds. On the other hand, Digital clocks typically display the time in a numeric format, using a 7-segment display. The time is often displayed in a 12-hour format, with a AM/PM indicator. Adding an Analog clock or a Digital clock in the form of a widget in your app can be done using the following Flutter packages.