[rrd-users] -s option for a graph

Dirk dirk at woodstone.nu
Thu Aug 21 19:21:37 CEST 2008

Does this mean that when doing
	rrdtool update
that I should use the UTC time OR the current time (based on my current time

Dirk Bulinckx. 

-----Original Message-----
From: Tobias Oetiker [mailto:tobi at oetiker.ch] 
Sent: Thursday, August 21, 2008 5:48 PM
To: Dirk
Cc: rrd-users at lists.oetiker.ch
Subject: Re: [rrd-users] -s option for a graph

Hi Dirk,

is 1h back from curent time ... note that rrdtool internally uses
UTC and is aware of your local timezone,k so this will all work


Today Dirk wrote:

> If you do a
> 	rrdtool graph -s -3600 ....
> then the generated graph is a graph of the last 3600 seconds (1h).
> How is the 1h calculated?
> Is this based on the current time (within the current time zone) or is this
> based on the current time (but seen in UTC) or is this the last 1h that was
> logged within the RRD file?
> Dirk Bulinckx.
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Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900

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