What does tt & 0 stands for in this line?
<p>What does tt &amp; 0 stands for in this line?</p>

<pre><code> Time = string.Format("{0:HH:mm:ss tt}", DateTime.Now);
</code></pre>

<p>I looked here but didn't see anything : <a href="http://msdn.microsoft.com/fr-fr/library/system.string.format.aspx" rel="nofollow">http://msdn.microsoft.com/fr-fr/library/system.string.format.aspx</a></p>
