The French Republican Calendar had five/six complementary days [0] at the end of the year that were part of no particular month. They were, however, spent conti

The French Republican Calendar had five/six complementary days [0] at the end of the year that were part of no particular month. They were, however, spent contiguously between summer and fall, rather than between each season. [0] https://en.wikipedia.org/wiki/French_Republican_calendar#Complementary_days https://en.wikipedia.org/wiki/French_Republican_calendar#Com...