Four clocks with 24h analog dial signaling latitude , the efficiency of noon insolation in summer, the permanent daytime (yellow), the permanent night time (red) and the alternating region (pink).

This Middle Eastern country is building the world's largest clock, which is also the fourth-tallest building in the world.

Likeablob is using a Raspberry Pi to power this cool pizza clock that uses slices to represent the time instead of hands like a traditional clock.