§

Writing

Notes from production

Infrastructure, distributed systems, and the failures that only turn up once something is deployed somewhere you cannot reach.

01

TitlePublished

The timezone bug that only exists in production
My booking page worked on my laptop and broke on Vercel. The cause was my machine's timezone hiding the bug — and the popular fix for it is worse than the bug.
JavaScript / Dates / Vercel / Debugging
9 September 20264 min read