Water Clock Ancient Greece. The problem with the sundial was it was only functional when the sun was out. This was an obvious issue and sparked inventors to find a new way to solve the timekeeping problem.
Around 325 bc water clocks began to be used by the greeks who called this device the clepsydra water thief.
Without the water clock an hour could have been interpreted into a span of many hours. How did people measure time before the invention of clocks or stopwatches. Klepshydra ancient greek water clock. Greece opens ancient water clock in athens to visitors greek heritage authorities have opened up to the public for the first time in decades a landmark 2 000 year old clock tower in a major.