-01)
is required. Negative numbers are relative to the current time. By default,
one day worth of data will be fetched. See also AT-STYLE TIME SPECIFICATION
section for a detailed explanation on  ways to specify the start time.</p>
</dd>
<dt><strong><a name="end" class="item"><strong>--end</strong>|<strong>-e</strong> <em>end</em> (default now)</a></strong></dt>

<dd>
<p>the end of the time series in seconds since epoch. See also AT-STYLE
TIME SPECIFICATION section for a detailed explanation of how to
speci