https://quantum5.ca/2022/03/09/art-of-time-keeping-part-4-french-republican-calendar/
The Art of Time-Keeping, Part 4: French Republican Calendar | Quantum
Mar 9, 2022 - Finally, we have all the background knowledge required to understand how we might calculate the French Republican Calendar. Let’s dive straight into it!
the art offrench republican calendartime keepingpartquantum