Circa is a beautiful and simple time zone tracker that lets you check what time it is where you are and where you’re heading. The app allows you to add your home time, in case you want to keep in touch with people back home or friends overseas. Circa simplifies the complexities of the world’s time zones into a visually stunning and fully personalized travel dial. Travelers can add their own unique set of destination cities and they appear as concentric time arcs that can specify ideal arrivals, departures, open hours, and meeting times. In a glance, you can see the time in your current or home city compared to cites anywhere in the world. The app is optimized for Apple Watch, in addition to iOS and Android phones.