On Thu, Nov 06, 2025 at 01:09:14AM +0000, you wrote:
here is a copy of ISO 8601-1:2019/Amd.1:2022(E) I found:
https://cdn.standards.iteh.ai/samples/81801/f527872a9fe34281ae3a4af8e730f3f8/
ISO-8601-1-2019-Amd-1-2022.pdf
I also got my hands on a set of ISO8601-1, -2, -1 AMD 2022. -2AMD 2025
Interestingly, ISO8601-1:2019 does not promote period or comma, It just says
one should follow ISO80000-1.
```
3.1.3.9
Note 1 to entry: The representations of the decimal signs (period or comma) and
their usage rules are specified in ISO 80000-1.
For many years 8601 included text similar to this:
If necessary for a particular application a decimal fraction of hour,
minute or second may be included...the decimal fraction shall be
divided from the integer part by the decimal sign...i.e., the comma
[,] or full stop [.]. Of these the comma is the preferred sign.
They may have removed that in 2019...I don't really care, since I don't
see the point of a standard which can't actually be read by anyone not
willing to pay $200. Just use RFC3399 and be done with it.
