Our planet has been spinning in the blackness of Space for 4.5 billion years. People have only been around for a tiny part of it. But what happened before we arrived on the scene? Before animals, dinosaurs and even trees? Imagine if we could discover Earth's history in one day. Starting the clock from the formation of the Earth, we can discover each significant moment in time on the clock, counting down to midnight. Earth Clock covers the most interesting and high-impact moments of our planet's geological history with stunning, detailed illustrations, while charting the evolution of life on Earth, from ancient single-celled organisms to the species we know today, until modern humans appear - at just four seconds to midnight. What will tomorrow bring?