calculate the difference between two time durations php : <p>I Have two-time durations</p>

<ol>
<li>5 hours and 55 minutes. </li>
<li>6 hours.</li>
</ol>

<p>expecting the answer +5.00 or -5.00 for the difference between. </p>

<p>what are the best options to resolve the matter? </p>
