[libvirt-users] wrong time in guest logs

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Tue Oct 28 16:22:57 UTC 2014

Eric wrote:

> -----Ursprüngliche Nachricht-----
> Von: Eric Blake [mailto:eblake at redhat.com]
> Gesendet: Dienstag, 28. Oktober 2014 17:18
> An: Lentes, Bernd; libvirt-ML (libvirt-users at redhat.com)
> Betreff: Re: [libvirt-users] wrong time in guest logs
> On 10/28/2014 10:08 AM, Lentes, Bernd wrote:
> > Hi,
> [can you convince your mailer to wrap long lines?]
> >
> > i have several vm's running on KVM hosts. Recently i found out that the
> time in the log-files of the guests (/var/log/libvirt/qemu/xxx.log) is wrong.
> The time on the guest itself is right, just the time in the log-files is one hour
> back. Windows and linux vm's are affected. Also on another host the same.
> Changing the clock offset does not have any influence, still the wrong time in
> the log file.
> The time in libvirt logs is ALWAYS tied to UTC, precisely because that is
> unambiguous (any log that outputs timestamps in local time risks being
> misinterpreted if the log is read from a different timezone, especially if the
> timezone name is not included as part of the timestamp).  Based on you
> email address, it looks like your problem is that Germany is coincident with
> UTC in the summer, but one hour off in the winter, and that your "problem"
> (which is not a bug) was made manifest because Germany left daylight
> savings this week.

Nearly. In summer we have in germany UTC+2, in winter UTC+1.


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