The Pyramid clock is built using the follow open source data.
The clock face design (pyramid_clock.dxf) which can be cut out of metal, wood or plastic. This part is the main body of the clock, and it includes a fold at the bottom which acts as the stand.
The PCB design for the LEDs and microcontroller are in Kicad format. The entire set of project files including any libraries are located here.
The source code used in the Pyramid Clock is located on GitHub here.