title: Excel Formula to highlight cell based on time difference
body: <p>I want to highlight a cell if that cell and another cell its within 1.5 hours.  So if A1 is <code>5/9/2016 06:55</code> and A4 is <code>5/9/2016 08:10</code>, they are within 1.5 hours apart, so highlight A4.</p>