French Decimal Time. French decimal time clock, By Cormullion, Own work ... What an amazing conversion table! Report comment. Reply. JASON E DOEGE says: December 15, 2016 at 1:40 pm ...

This decimal clock was made by Pierre Daniel Destigny in Rouen, France, between 1798 and 1805. | DeFacto, Wikimedia Commons // CC BY-SA 4.0 Everybody knows that there are 24 hours in a day, 60 ...