No math required to figure out what time loved ones are on in distant lands with these clocks. "designed by peter stathis and with graphics from susanna dulkynis (cosmos and one world clocks), knowhere wall clock are definitely a different concept on wall clocks. knowhere clocks are among the most customizable clocks that we offer, with a wide array of hands, including like extra hands, blank hands that can be written on and international landmarks." dimensions:12”dia x 2.05”d made from clear acrylic frame, printed acrylic dial, metal hands, AA battery included.