RTC, was Re: System time/timezone

[David Wright <deblis@lionunicorn.co.uk>]

On Tue 18 Jun 2024 at 04:12:07 (-0400), Jeffrey Walton wrote:
> On Tue, Jun 18, 2024 at 4:05 AM <tomas@tuxteam.de> wrote:
> > On Mon, Jun 17, 2024 at 11:54:03PM -0500, David Wright wrote:
> > > [...]
> > > I notice that   man timedatectl   says:
> > >
> > >        set-timezone [TIMEZONE]
> > >            Set the system time zone to the specified value.
> > >            Available timezones can be listed with list-timezones.
> > >            If the RTC is configured to be in the local time, this
> > >            will also update the RTC time. This call will alter
> > >            the /etc/localtime symlink. See localtime(5) for more
> > >            information.
> >
> > I cringe a bit when I see that.
> 
> Yeah.. on Linux, it is recommended to keep the RTC clock in UTC.
> Unless Windows has contaminated the machine. See
> <https://wiki.debian.org/DateTime>.

Here's your subthread for discussing the RTC, as it's a separate
issue from the system's time zone.

(I believe I'm correct in saying that Windows has long been able,
by means of a registry key setting, to run with the RTC set to UTC.)

Cheers,
David.