Version 3 of the Rational Calendar
Bah, rationality has a way of undermining its own proposals. I’ve already managed to revise the Rational calendar so comprehensively that it has to be called version 3. Here it is (and I think it’s a keeper this time!):
- Exactly 90 day “seasons” to replace the variable month system of the Gregorian calendar. In version 2, the length was set to 91 days, but I realized that it’s much more important to make date calculation easy than to precisely balance the seasons on either side of the winter solstice.
- The five or six days not covered by the seasons are collected at the end of the year as a holiday.
- Each season can, in a transition period, be split in three groups of 30 days and called months, by the standard names.
- 10 day weeks. Week counts are reset by each month, so you have to say what season it is to be unambiguous. This is because it shouldn’t be necessary to do calculations to understand what period is referred to.
If you’ve been paying attention, you see how remarkably similar this is to the French Revolutionary Calendar. Which, bitterly, is kind of where I started.
I’ll come back to this after my exams, wrap it up properly, present some visuals, printable calendars, a furry mascot, and much more.

What kind of furry mascot will you be making?
A Frenchman. A furry Frenchman. In honor of the Revolutionary Calendar.
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