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Groups > linux.debian.user > #270267

Re: RTC, was Re: System time/timezone

From Nicholas Geovanis <nickgeovanis@gmail.com>
Newsgroups linux.debian.user
Subject Re: RTC, was Re: System time/timezone
Date 2024-06-19 21:20 +0200
Message-ID <IR90B-477y-7@gated-at.bofh.it> (permalink)
References (6 earlier) <IQoEp-3D1W-7@gated-at.bofh.it> <IQz6N-3JC2-1@gated-at.bofh.it> <IQC4F-3LD3-7@gated-at.bofh.it> <IQCel-3LGg-3@gated-at.bofh.it> <IQUNX-3WZK-7@gated-at.bofh.it>
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On Tue, Jun 18, 2024, 11:05 PM David Wright <deblis@lionunicorn.co.uk>
wrote:

> 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.
>

Reading the link that Walton sent, the only case where RTC clock in UTC is
recommended is in the linux/windows dual-boot case. There's no statement
that RTC should be set to UTC besides that. And they say right there why it
isn't mentioned: your Debian machine might move around geographically. But
if it doesnt....

Servers in data centers don't move around, they just sit there :-) So in my
experience servers running anything non-windows have RTC set to local time.
That's been on Red Hat/CentOS, Debian, Ubuntu.

(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.)
>

That is also my understanding but Windows 95 is the last release I've been
an admin on.

Cheers,
> David.
>
>

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Thread

Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-16 10:20 +0200
  Re: Maximum size .bash_aliases file Richard <rrosner5@gmail.com> - 2024-06-16 15:30 +0200
    Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-17 10:50 +0200
  Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-16 16:00 +0200
    Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-17 10:30 +0200
      Re: Maximum size .bash_aliases file gene heskett <gheskett@shentel.net> - 2024-06-17 13:00 +0200
      Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 13:30 +0200
        Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-18 10:30 +0200
          Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-18 13:10 +0200
            Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:00 +0200
      Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-17 16:20 +0200
        Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 16:30 +0200
          Time, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-17 17:40 +0200
            Re: Time, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 17:50 +0200
            Re: Time, was Re: Maximum size .bash_aliases file eben@gmx.us - 2024-06-17 19:30 +0200
              Re: Time, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:10 +0200
            Re: Time, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:10 +0200
        Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-17 18:30 +0200
          Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 19:30 +0200
            Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-17 19:50 +0200
              System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-18 07:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-18 10:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Jeffrey Walton <noloader@gmail.com> - 2024-06-18 10:20 +0200
                RTC, was Re: System time/timezone David Wright <deblis@lionunicorn.co.uk> - 2024-06-19 06:10 +0200
                Re: RTC, was Re: System time/timezone Nicholas Geovanis <nickgeovanis@gmail.com> - 2024-06-19 21:20 +0200
                Re: RTC, was Re: System time/timezone Greg Wooledge <greg@wooledge.org> - 2024-06-19 21:40 +0200
                Re: RTC, was Re: System time/timezone Stefan Monnier <monnier@iro.umontreal.ca> - 2024-06-20 04:00 +0200
                Re: RTC, was Re: System time/timezone Max Nikulin <manikulin@gmail.com> - 2024-06-20 04:00 +0200
                Re: RTC, was Re: System time/timezone Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:20 +0200
                Re: RTC, was Re: System time/timezone Michael Stone <mstone@debian.org> - 2024-06-20 05:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-19 06:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-19 06:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-18 13:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-19 06:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-19 13:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Jeffrey Walton <noloader@gmail.com> - 2024-06-19 19:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-20 07:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Jeffrey Walton <noloader@gmail.com> - 2024-06-20 07:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file tomas@tuxteam.de - 2024-06-20 08:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Max Nikulin <manikulin@gmail.com> - 2024-06-21 04:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-21 05:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-21 06:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-22 17:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Stefan Monnier <monnier@iro.umontreal.ca> - 2024-06-22 18:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Nicholas Geovanis <nickgeovanis@gmail.com> - 2024-06-23 04:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-23 05:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-23 06:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-23 07:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file gene heskett <gheskett@shentel.net> - 2024-06-23 08:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file eben@gmx.us - 2024-06-23 15:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file gene heskett <gheskett@shentel.net> - 2024-06-23 16:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 02:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file eben@gmx.us - 2024-06-26 15:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Curt <curty@free.fr> - 2024-06-24 15:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Curt <curty@free.fr> - 2024-06-24 15:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Bret Busby <bret@busby.net> - 2024-06-24 17:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Heriberto Avelino <heriberto.avelino@gmail.com> - 2024-06-26 00:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Bret Busby <bret@busby.net> - 2024-06-24 17:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file eben@gmx.us - 2024-06-24 18:10 +0200
                Re: System time/timezone Felix Miata <mrmazda@earthlink.net> - 2024-06-24 18:20 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file The Wanderer <wanderer@fastmail.fm> - 2024-06-25 00:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file John Hasler <john@sugarbit.com> - 2024-06-25 00:20 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file The Wanderer <wanderer@fastmail.fm> - 2024-06-25 00:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file "Andrew M.A. Cater" <amacater@einval.com> - 2024-06-25 10:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file debian-user@howorth.org.uk - 2024-06-26 12:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file John Hasler <john@sugarbit.com> - 2024-06-26 18:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-26 19:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-28 06:20 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Erwan DAVID <erwan@rail.eu.org> - 2024-06-28 07:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file John Crawley <john@bunsenlabs.org> - 2024-06-28 08:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-28 11:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file John Crawley <john@bunsenlabs.org> - 2024-06-30 03:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file "Roy J. Tellason, Sr." <roy@rtellason.com> - 2024-06-25 20:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-25 21:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 03:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 02:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 02:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-23 14:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-24 02:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Curt <curty@free.fr> - 2024-06-23 17:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 02:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-21 13:20 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-22 17:00 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-22 18:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-23 06:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Jeffrey Walton <noloader@gmail.com> - 2024-06-23 07:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-21 06:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Max Nikulin <manikulin@gmail.com> - 2024-06-22 05:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-22 07:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-22 17:20 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-23 04:40 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-23 05:10 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file John Hasler <john@sugarbit.com> - 2024-06-23 21:50 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-26 02:30 +0200
                Re: System time/timezone, was Re: Maximum size .bash_aliases file Stefan Monnier <monnier@iro.umontreal.ca> - 2024-06-20 04:00 +0200
      time display was: Re: Maximum size .bash_aliases file debian-user@howorth.org.uk - 2024-06-17 17:00 +0200
        Re: time display was: Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 17:10 +0200
        Re: time display was: Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:20 +0200
          Re: time display was: Re: Maximum size .bash_aliases file Default User <hunguponcontent@gmail.com> - 2024-06-22 16:30 +0200
      Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-20 13:10 +0200
        Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-20 13:20 +0200
          Re: Maximum size .bash_aliases file The Wanderer <wanderer@fastmail.fm> - 2024-06-20 13:30 +0200
            Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:30 +0200
              Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-22 16:10 +0200
        Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-21 06:30 +0200
          Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-22 10:40 +0200
            Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-22 16:10 +0200
              Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-22 17:00 +0200
                Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-22 18:30 +0200
                Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-23 06:30 +0200
              Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-25 10:40 +0200
                Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-25 13:20 +0200
                Re: Maximum size .bash_aliases file debian-user@howorth.org.uk - 2024-06-25 14:30 +0200
                Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-25 15:00 +0200
                Australia/Eucla timezone abbreviation (was: Re: Maximum size  .bash_aliases file) Max Nikulin <manikulin@gmail.com> - 2024-06-25 17:20 +0200
            Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-22 17:10 +0200
              Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-25 10:50 +0200
  Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-17 06:40 +0200
    Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-17 10:50 +0200
      Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-17 11:20 +0200
        Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-17 14:10 +0200
          Re: Maximum size .bash_aliases file <tomas@tuxteam.de> - 2024-06-17 14:20 +0200
      Re: Maximum size .bash_aliases file Greg Wooledge <greg@wooledge.org> - 2024-06-17 13:30 +0200
      Re: Maximum size .bash_aliases file David Wright <deblis@lionunicorn.co.uk> - 2024-06-17 17:50 +0200
  Re: Maximum size .bash_aliases file Keith Bainbridge <keithrbau@gmail.com> - 2024-06-17 11:00 +0200

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