n on the datetime variable.</p>
    
    <h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>

    <p>The interval of a datetime variable is the time unit at which the
observations occur. The eight intervals in <code>padr</code> are from high to low
<code>year</code>, <code>quarter</code>, <code>month</code>, <code>week</code>, <code>day</code>,
<code>hour</code>, <code>min</code>, and <code>sec</code>. Since <code>padr</code> v.0.3.0 the
interval is no longer limited to be 