Napoleon & Empire

The French Republican calendar

An ephemeral legacy of the French Revolution

Throughout the Consulate, and until the end of 1805, the French continue to live, at least officially, to the rhythm of the calendar conceived by Philippe Francois-Nazaire Fabre d'Eglantine. This system is finally abandoned on 22 Fructidor year XIII (9 September 1805) by an imperial sénatus-consulte, following a report from Pierre-Simon Laplace, which restores the Gregorian calendar from 1 January 1806.

This is the most emblematic example of a new unit which had not passed down to posterity, despite an use which lasted 12 years, 2 months and 27 days.

Date converter: Revolutionary calendar / Gregorian

The French Republican calendar
The French Republican calendar
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To convert a date in the Revolutionary calendar into the same one in the Gregorian calendar, or vice versa, please enter the desired date then click the button corresponding to your request.

Dates are accepted from 15 Vendemiaire year II (October 6, 1793), the date of entry into force of the Republican calendar by decree of the National Convention, to 10 Nivose year XIV (December 31, 1805), the last day of its use.

Revolutionary date
Gregorian date

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