Why Developers Should Stop Using ISO 8601 for Date-Time

Robin Pokorny
2 min readAug 7, 2023

When documenting APIs, developers often link to ISO 8601 as the standard for computer-readable date and date-time format.

Dates and times (and time zones!) are complicated. There are so many edge cases and pitfalls. I’m sure every developer has a battle story about them. It’s good to delegate that hard work to somebody else. So when an international body that everybody…

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Robin Pokorny

Zealous Engineer — TypeScript & Tech Leadership — Speaks — Loves maths — Reads specs — Vzhurudolu.cz podcast — Lives in Berlin