[geeks] BIOS & timezone interaction under Linux

[Geoffrey S. Mendelson]

Nadine Miller wrote:
> OK, I have googled, but I can't find anything
> to definitively say one way or another...
> 
> On an Linux box (x86), does the BIOS TZ setting
> impact the OS?  My understanding is that the OS
> gets it's initial clock time at boot up from the
> HW clock.
> 
> I'm inclined to set the BIOS clock to match the OS
> TZ, but am wondering if this will interfere with
> 'UTC=true' in /etc/sysconfig/clock. (I'm not even
> sure about 'UTC=true' for switching PST to PDT
> and vice versa; I see conflicting info.)

Your hardware clock should be set to GMT. If there is a BIOS setting it
should also be set to GMT.

/etc/localtime should be linked to the compiled timezone file for your 
location.

Geoff.

-- 
Geoffrey S. Mendelson gsm at mendelson.com 972-54-608-069
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