On Tue, Jun 18, 2024, 11:05 PM David Wright <deb...@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 <to...@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. > >
