[mrtg] Re: Timezone query

Gisle Vanem giva at bgnett.no
Tue Mar 30 14:10:15 MEST 2004

"Dave Whitehead" <Dave.Whitehead at halliburton.com> said:

> We are in London and since Saturday when we changed to GMT+1 all my
> graphs have the wrong time displayed (1hr slow) using option PNGDATE. I
> tried putting GMT+1 in the .CFG file (Timezone[xxx]: GMT+1) - but all
> that did was put the text "GMT+1" in the graph.
> The server that MRTG is running on shows the correct time/date and
> timeszone (inc daylight saving) so I am at a bit of aloss to know why
> MRTG isnt picking it up.

I had the same problem on Win-XP. Fixed by changing the env-var TZ 
from GMT-1 to GMT-2 and restarting MRTG daemon. 

Seems the Perl I use (ActiveState perl) doesn't detect DST changes in 
the localtime function or doesn't detect changes in $ENV{'TZ'} once the 
program is running.


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