Solstice World Clock: Vanilla JS, No Build Step, Everything in localStorage
SeanOliver · x · 2026-09-12
SeanOliver shared implementation details of the Solstice new-tab world clock (see prior post):
- Pure vanilla JS, no build step, MIT licensed; code and roadmap on GitHub
- Add any city, drag to reorder, rename zones to people ("London" → "Mum"), toggle 12h/24h
- Sunrise/sunset computed per city coordinates to render day-night bands
- All data in localStorage—no accounts, feeds, or analytics
Related event: Open-Source Solstice Turns New Tab into Sun-Aware World Clock(2 posts)→
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