Everything Everywhere Daily: History, Science, Geography & More Calendar Reform (Encore)
May 7, 2026
A lively dive into why our calendar feels messy and the quirks behind leap years and uneven months. Exploration of bold alternatives like 13-month and fixed-quarter plans, decade-based French Revolutionary ideas, and leap-week schemes. Discussion of religious and practical objections to extra-day proposals and why sweeping change is so difficult.
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Why The Gregorian Calendar Feels Messy
- The Gregorian calendar is irregular and complicates scheduling with uneven month lengths and a non-fixed weekday alignment.
- Nick Martell lists problems: varied month lengths, leap-year exceptions, movable religious holidays, and unequal economic quarters.
How The 13 Month International Fixed Calendar Works
- The International Fixed Calendar makes 13 months of 28 days so every month equals four weeks and dates always fall on the same weekday.
- It adds Year Day (and Leap Day) outside the weekly cycle to reconcile with the solar year.
World Calendar Creates Identical Quarters
- The World Calendar keeps 12 months but creates four identical 91-day quarters so each date always aligns with the same weekday.
- It inserts World Day and a Leap Day outside the week to preserve weekday consistency.