this post was submitted on 28 Oct 2025
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You think timezones are annoying? Try handling metrics that use imperial and metric, need to be rounded to different precisions across a large system, and are sometimes recorded in a different unit than it's viewed in. Slap some floating point error on there, and you got yourself a fun time.
I spent all day working on bug where backend was categorizing 19.9999 as falling between <20, but frontend was rounding it to 20 and categorizing it as >=20.
Edit: just to be clear, I don’t really think this is more difficult than date/time. But it does remind me a lot of solving date/time issues.
But have you ever try making a calendar?
https://zachholman.com/talk/utc-is-enough-for-everyone-right
Thanks, interesting read