Using the French Revolutionary method of telling time the day was divided into 10 decimal hours. Each hour was divided into 100 minutes and each minute into 100 seconds.  
Clocks were constructed with decimal faces. 

Time was reckoned from Paris, which is about nine minutes, twenty-one seconds ahead of GMT.  
“1” was used as the origin so midnight was ten o'clock. 

This method of decimal time originated in 1793 and was abandoned after only two years.