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by sratner 2172 days ago
ISO8601 is a representation standard, not a standard for abstract concepts.

https://news.ycombinator.com/item?id=23783603 called for Unicode but for Time, which I think is perfect. In that framing, ISO8601 is UTF-8, but it is Unicode that is needed for everyone to agree on what is "code point" and what is a "character" (equivalently, what is a "calendar date", what is an "absolute timestamp", etc).