It is well known that Earth takes approximately 24 hours to rotate on its axis. But this established fact is seeing some major seismic changes. According to scientists, on July 29, Earth completed a full spin in less than 24 hours, about 1.59 milliseconds shorter than its standard timeframe. Notably, this is not the first time that the blue planet has spun faster. Atomic clocks have, however, recently revealed that the Earth's rotation is rapidly accelerating.