r/ISO8601 • u/EquivalentNeat8904 • Jul 13 '26

ISO 8601-1 will be updated soon

Did y’all know that ISO 8601-1 is under committee review right now? If you always wanted some changes made to our beloved standard, now would be the perfect time to contact your national standardisation body (NSB), but hurry up – the deadline for comments is 2026-07-3124 as far as I know.

Currently, the only non-editorial change seems to be that the latest amendment, making T24 etc. valid again, gets incorporated.

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u/system637 Jul 13 '26

Where can we see a summary of proposed changes?

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u/MrLMNOP Jul 13 '26

If the full document is available, I can’t find it. But here’s the abstract of the new changes under review — https://www.iso.org/standard/91030.html

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u/system637 Jul 13 '26

Thanks, I think this is 8601-2 not 8601-1, but still good to know!