Worldwide clocks are useful for travelers who need to know what time it is in their destination city, or for businesses that have operations in multiple time zones. They can also be used to keep track of events that are happening in different parts of the world.
The most common type of worldwide clock is the analog clock, which features a traditional clock face with 12 numbers or markings to indicate the hours, and a smaller dial to indicate the minutes. The hands of the clock move in sync with the time in each of the cities listed on the clock.
Digital worldwide clocks, on the other hand, display the time digitally in each city. They may also include other features such as the date, day of the week, and weather forecast.
Some worldwide clocks also include a globe or map that shows the location of each city, making it easy to see the time difference between different parts of the world.