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3000 BCE
Used a shadow cast by the sun.
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300 BCE
Started using a sundial
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300 BCE
Early Greeks and Egyptians created a water clock.
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Dec 24, 1050
Hourglass (11th Century)
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Dec 24, 1300
The first Mechanical clocks were found in Europe.
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Dec 24, 1410
The first watches (early 1400s)
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In Europe, scientists developed a pendulum. (1600s)
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International Date Line (early 1880s)
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Greenwich Mean Time - The prime meridian passed through Greenwich, England.
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Standard Time was invented
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The idea to save daylight was introduced.
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Universal Time Coordinate