Duodi
The twelve months of the republican calendar of the French Revolution are each divided into three "decades" of ten days. Duodi is the second day of a decade. The 2nd, 12th and 22nd of each month and the Fête du génie der Sansculottiden fall on a duodi.
Day names
The day names of the Duodi were (like most other day names) agricultural crops. Only in the Nivôse were the days named after minerals and animal substances.
| Day names for the Duodi | ||||||
| 1 re Decade | 2 e decade | 3 e decade | ||||
| Vendémiaire | 2. | Saffron (saffron) | 12. | Immortelle (straw flower) | 22nd | Pêches (peaches) |
| Brumaire | 2. | Céleri (celery) | 12. | Macre (water nut) | 22nd | Azerole (Welsche Medpel) |
| Frimaire | 2. | Turneps (turnip) | 12. | Raifort (horseradish) | 22nd | Briar (heather) |
| Nivôse | 2. | Houille (coal) | 12. | Argile (clay) | 22nd | Sel (salt) |
| Pluviôse | 2. | Mousse (moss) | 12. | Brocoli (broccoli) | 22nd | Thimelé (Daphne) |
| Ventôse | 2. | Cornouiller (cornel cherry) | 12. | Orm (elm) | 22nd | Percil (parsley) |
| Germinal | 2. | Plane tree (plane tree) | 12. | Charm (hornbeam) | 22nd | Romaine (romaine lettuce) |
| Floréal | 2. | Chêne (oak) | 12. | Sain-foin (sweet clover) | 22nd | Fritillaire (chess flower) |
| Prairial | 2. | Hémérocalle (daylily) | 12. | Bétoine (betony) | 22nd | Camomille (chamomile) |
| Messidor | 2. | Avoine (oats) | 12. | Artichaut (artichoke) | 22nd | Cumin |
| Thermidor | 2. | Bouillon blanc (Mullein) | 12. | Salicor (samphire) | 22nd | Caprier (caper bush) |
| Fructidor | 2. | Millet (millet) | 12. | Fenouil (fennel) | 22nd | Noisette ( witch hazel ) |
| Sansculottide | 2. | Fête du génie | ||||