Global Positioning System (GPS) will also be used to control all the clocks, which will ensure that all clocks all accurate and synchronized.
A night a special effect takes place during prayers when the lighting will change from white to green on the towers that stand over 12 metres tall.
The concept is to create not only functional clocks, but clocks that can serve both as Public Art and act as navigation marks in Wayfinding. Timekeeping is an important feature to Madinah as visitors need to be able to easily tell when is the next time to pray.