Metals used for building timekeeping structures came from the big bang predating even the creation of Earth.
Before any clocks or watches were invented, people only relied on sunlight to determine how long they have until dark.
Ancient Egyptians used obelisks as ‘shadow clocks’ to tell time using the shadows they cast during the day. The oldest of these date to 3500B.C
Some towns and cities had a centrally located clocktower which announced the start of prayer and the beginning/end of the workday. These usually consisted of a bronze bell and a striking mechanism which were the first to be powered by gears and levees.
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At the start of the 20th century, the height of the Industrial Revolution; new technology for telling time were invented as the watch became more affordable and durable.
New technological advances such as advanced electronics allowed for the creation of the digital clock which is the most common clock face today.