There's a foundation for that (if currently interested)  https://longnow.org/
you know, the folks with the clock....  ;)
ISO-8601 is the standard (now extended)(I like the basic format)
and there is OWL-Time if needed: https://www.w3.org/TR/owl-time/
It's Astounding; Time is Fleeting...

On Wed, Aug 4, 2021 at 3:37 PM Matt Graham via PLUG-discuss
<plug-discuss@lists.phxlinux.org> wrote:
>
> On 2021-08-04 13:25, Brian Cluff via PLUG-discuss wrote:
> > Please keep the conversion roughly on topic of Linux and the topics
> > surrounding Linux such as computers, software.
>
> Pretty much this.
>
> Moving to 64-bit time_t took care of the 2038 problem.  However, I have
> no doubt that some userspace date libraries will still have problems
> with 5-digit years, and those problems will be ignored until roughly
> 9995.
>
> https://aeon.co/essays/when-time-became-regular-and-universal-it-changed-history
> makes an interesting case for considering a calendar as a technology.
> tl;dr: Moving from "Year 12 of the reign of Alexander I" to "Year 123 of
> the Seleucid Era" changed everything.  The year number just keeps going
> up?[0]  It's possible to confidently refer to a date in the future?
> Every place in the empire uses the same date?  We take it for granted,
> but the ancient world was like, "Mind... blown!"
>
> [0] Historians of the late Roman republic and early empire sometimes
> referred to dates "since the founding of the city" but consular and
> later regnal years were much more common.
>
> --
> Crow202 Blog: http://crow202.org/wordpress
> There is no Darkness in Eternity
> But only Light too dim for us to see.
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