---
title: 'Solar Calendar'
url: 'https://www.dealmobile.co.uk/writing/tag/solar-calendar'
type: Tags
---

# Solar Calendar

## [A live calendar feed and badge from a Cloudflare Worker](https://www.dealmobile.co.uk/writing/calendar-feed-and-badge-from-a-worker.md)

Published 2026-10-20

How the Solar Calendar serves a feed people can subscribe to in their calendar app, and a badge with today’s date, from a small Cloudflare Worker that runs the same date code as the app.

## [Why the Solar Calendar has 13 months of 28 days](https://www.dealmobile.co.uk/writing/why-the-solar-calendar-has-13-months.md)

Published 2026-10-18

The rules behind the Solar Calendar, why the year starts on the first Monday after the spring equinox, and why the rebuild swapped special days for a leap week.

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Index of this site: [llms.txt](https://www.dealmobile.co.uk/llms.txt)