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Our calendar is political, not mathematical – explore alternatives

Our calendar is political, not mathematical – explore alternatives

by szemy2·Feb 20, 2026·1 point·0 comments
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AI Analysis

●●●BangerBig BrainRabbit HoleNiche Gem

Factorize 365 into clean calendar systems; instantly visualize 24 ways to redesign the year.

Strengths
  • •Novel angle: reframes calendar design as a math problem, not dogma. Genuinely refreshing.
  • •Slick interaction model: drag factorization levels, compare side-by-side views (radial, grid, analysis) in real time.
  • •URL-shareable configs encode every design choice; invitation to collaborate on hypothetical calendars.
Weaknesses
  • •Niche audience: fascinating to math/design nerds, but 99% of people will never design a calendar.
  • •No historical depth: mentions why 365 is 'bad' but doesn't explore why humans kept it (solar year precision, seasonal alignment).
Category
Productivity
Target Audience

Calendar enthusiasts, designers interested in systems thinking, people curious about mathematical alternatives to convention

Similar To

ISO 8601 / calendar standards research · International Fixed Calendar (historical proposal) · Timeanddate.com calendar converters

Post Description

365 is nearly prime (5×73), which is why our months are uneven and weeks don't fit into months. But 360 has 24 divisors — swap 5 days for year-end holidays and you unlock dozens of clean calendar systems where every month is identical.

I built a tool to explore them all: pick a base, see every valid factorization, compare against Gregorian side-by-side.

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