Days</b>, <b>Hours</b>, <b>Minutes</b>,
   <b>Seconds</b>, <b>Milliseconds</b> or <b>Ticks</b>.

<div class="code"><pre class="prettyprint">
DateTime now = DateTime.Now;
DateTime later = now + TimeSpan.FromHours(1.0);

Assert.That( now, Is.EqualTo(now) );
Assert.That( later. Is.EqualTo(now).Within(TimeSpan.FromHours(3.0);
Assert.That( later, Is.EqualTo(now).Within(3).Hours;
</pre></div>

<h4>Comparing Arrays and Collections</h4>

<p>Since version 2.2, NUnit has been able to compare two single-dimensioned ar