Clocks of Cities on Terra is a travel and navigation app that visually represents cities around the world with their respective time zones on a globe. The app showcases over 1300 cities, offering a real-time high-quality globe view blended with sunlight and city lights. Users can easily identify different time zones by color, including support for Daylight Saving Time adjustments. The app allows users to preset favorite cities, choose betweenhour time formats, and explore country boundaries and coastlines, including disputed areas.

The app provides gesture controls for seamless navigation, such as tapping to focus on a city, double-tapping to add or delete cities, pinching to zoom and rotate, and sliding to move the viewer. Users can search for cities by name, view their own location on Earth, and enjoy ad-free usage with an optional in-app purchase.