In the French Republican calendar, the franciade was the period of four years at the end of which it was necessary to add a day to the calendar year to keep it aligned with the solar year (c. 365 days).
The franciade was defined in 1793 in article 10 of the , as follows:
<blockquote> The period of 4 years, at the end of which this addition of one day is usually necessary, is named the franciade, in memory of the revolution which, after 4 years of toils, led France to its Republican government. </blockquote> <blockquote> <small>La période de quatre ans, au bout de laquelle cette addition d'un jour est ordinairement nécessaire, est appelée la franciade, en mémoire de la révolution qui, après quatre ans d'efforts, a conduit la France au gouvernement républicain.</small></blockquote>
The day that was thus added at the end of the jours complémentaires was called the jour de la révolution (Revolution Day).
Franciade was also the name given to Saint-Denis from 1793 to 1800.