HWCLOCK,LOCALTIME,UTC how to fix wrong time.

[Bill Davidsen]

Rick Stevens wrote:
> On 04/05/2012 06:58 AM, Aaron Konstam wrote:
>> On Wed, 2012-04-04 at 15:11 -0700, Rick Stevens wrote:
>>> On 04/04/2012 02:47 PM, luis redondo wrote:
>>>> I got that Fedora16 and OpenSUSE present wrong system time because they
>>>> are the only systems I run that have WRONG UTC.
>>>> For example: My correct system time is 21:20:04 and when I do on
>>>> Fedora(OpenSUSE) :
>>>> hwclock ; date ; date --utc I got
>>>>
>>>> 8:20:04 PM WEST
>>>> 20:20:04 WEST 2012
>>>> 19:20:04 UTC 2012
>>>>
>>>> Then UTC is 2 hours before my right daylight savings time AND IT SHOULD
>>>> BE ONLY 1 HOUR.
>>>> On Ubuntu,Debian which present right system hour with daylight savings
>>>> the UTC is 1 HOUR BEFORE
>>>> 20:20:04 UTC 2012(which is correct with the real world).
>>>
>>> The numbers look right for the WEST time zone (western Europe savings
>>> time), which is defined as "+0100".
>>>
>>> "hwclock" always reports in local time, regardless if your hardware
>>> clock is set to UTC or not (read the man page if you don't believe me).
>>> You need to look at /etc/sysconfig/clock to see how your hardware clock
>>> is set. If "UTC" is "true", then your hardware clock is using UTC.
>>> -
>>> ----------------------------------------------------------------------
>> My hardware clock is set to UTC. But in /etc/sysconfig/clock
>> all I find is a line defining the Local time zone "America/Chicago".
>> Nothing about UTC.
>
> I believe the default hardware clock setting (e.g if "UTC=" is not
> specified) is UTC as well. The /etc/adjtime file will tell you what
> it really is set to. If you see UTC in there, then your hardware clock
> is UTC.
>
> This was all a hell of a lot easier when you could look at the startup
> scripts instead of having this silly systemd-timedated binary. I'm not
> a fan of this whole systemd crap. I like transparency and in lieu of
> source code, how about a man page?

Have to agree, complexity for no benefit. So what if the boot time is a 
few seconds faster, is that really important other than to marketing guys?


-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot