on</em> (default is the highest resolution)</a></strong></dt>

<dd>
<p>the interval you want the values to have (seconds per
value). <strong>rrdfetch</strong> will try to match your request, but it will return
data even if no absolute match is possible. <strong>NB.</strong> See note below.</p>
</dd>
<dt><strong><a name="start" class="item"><strong>--start</strong>|<strong>-s</strong> <em>start</em> (default end-1day)</a></strong></dt>

<dd>
<p>start of the time series. A time in seconds since epoch (1970-01