calendar

France had its own calendar for only 12 years starting in 1792

France had its own calendar for only 12 years starting in 1792. Each week had 10 days, each day 10 hours, each hour 100 minutes, and each minute 100 seconds.

The French Republican Calendar (French: calendrier républicain français) or French Revolutionary Calendar (calendrier révolutionnaire français) was a calendar created and implemented during the French Revolution, and used by the French government for about 12 years from late 1793 to 1805, and for 18 days by the Paris Commune in 1871. The revolutionary system was designed in part to remove all religious and royalist influences from the calendar, and was part of a larger attempt at decimalisation in France (which also included decimal time of day, decimalisation of currency, and metrication).