This Arduino Pro Mini powered clock syncs the current time via GPS, with a temperature compensated DS3231 RTC to keep it on the straight and narrow between satellite downlinks.

If you mention a clock that receives its time via radio, most people will think of one taking a long wave signal from a station such as WWVB, MSF, or DCF77. A more recent trend however has been for… ...

GRA & AFCH : IN-12 Arduino : Nixie clock kit with NTP V2 While the build in GPS works well, it can be an issue within well insulated home to receive GPS/ DCF signals from the outside. Hence the wish ...

Sick of telling time the old way? Spice up your time-telling time with the open-source, hackable and Arduino -based DOTKLOK. Basically, you can get a bunch of different ways to tell time.