[CentOS] Re: using true UTC timezone everywhere

Thu Mar 8 21:32:22 UTC 2007
Scott Silva <ssilva at sgvwater.com>

Florin Andrei spake the following on 3/8/2007 12:04 PM:
> One problem with the daylight savings is that they mess with reporting
> tools that use timestamps. I guess an application could be configured to
> log UTC instead of local time, but that's not always doable.
> Also, if you have servers in several different timezones, it's better if
> all systems follow the same clock.
> So, I'm thinking it's perhaps better if I just use ZONE="UTC" on all
> systems. These are the steps I can think of so far:
> - make sure the BIOS clock is set to UTC
> - run timeconfig and make sure "System Clock uses UTC" is checked
> - cp /usr/share/zoneinfo/UTC /etc/localtime
> - edit /etc/sysconfig/clock and set ZONE="UTC"
> - reboot
> Voila - instant UTC clock. Never need to worry about daylight savings
> again.
> Anybody can think of any problems with:
> - the procedure I described?
> - the simple fact of using the "true" UTC timezone?
System spikes caused by logrotation happening in the middle of the workday?
Not a real problem, but the first one I could think of.


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