Decimal Time

Use the clocks to investigate French decimal time in this problem. Can you see how this time system worked?
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Problem



In France in 1793 decimal time was introduced, then abandoned only two years later.

Look at these pairs of times. The one on the left is our time and the clock on the right shows the corresponding French decimal time.

Image
Decimal Time


Image
Decimal Time


Can you decipher how French decimal time works?

How did you use the clocks to help you?

Click here for a poster of this problem.