[tz] localized date without time

[Serge E. Hallyn]

On Wed, Jul 31, 2024 at 06:49:44PM -0700, Paul Eggert wrote:
> On 2024-07-30 23:04, Alejandro Colomar wrote:
> 
> > it might be better to show the timezone information together with
> > the date, to be clear that what we're printing is local time.
> 
> That would make sense, given that this is a change to behavior and the time
> zone info will let people know of the change.
> 
> 
> > maybe it's understood that when printing a
> > date some timezone information is implicitly local?
> 
> It's not obvious to everybody.
> 
> 
> > I don't see any way to print something like 2023-09-21+02:00 in
> > standardese.  Is this a defect in ISO 8691?
> 
> Sort of, yes. You can use a format like "2023-09-20T00:000-07:00" to follow
> the letter of the standard. I would suggest, though, using the format
> "2023-09-20 -0700"; this uses an RFC 3339 / ISO 8601 date, space, and

FWIW that is definitely my preference, by far - thanks for suggesting it :)

> time-zone, and this notation would be more useful to human readers even if
> it's not specifically called out in the standards.
> 
> If you wanted to get fancy you could append an RFC 9557 suffix but that's
> surely overkill for this application.