I really love clocks. I think this may be because I am living here in Switzerland. Besides that, clock projects are just fun! After I have completed my project building a single clock using stepper motors (see " DIY Stepper Motor Clock with NXP LPC845-BRK "), I wanted to build a special one that was able to show up in four different time zones. Below is an example of London (UK), New York (USA), Beijing (China), and Lucerne (Switzerland):
The clock is not only able to show time for up to four different locations on the world; using dual-shaft 360° stepper motors can show patterns beyond the time: