Cheap way to compare NSDate by just year/month/day (not hour, minute, second, millisecond)?
<p>I'd like to see if two NSDate instances are on the same day. </p>

<p>Using...</p>

<pre><code>[date1 compare:date2] 
</code></pre>

<p>...compares them at the hour, minute, and second level.</p>

<p>Is there a cheap way to make the comparison using built-in calls without using things like NSCalendar and NSDateComponents?</p>
