title: Formula for Total hours between two date times in ms excel
body: <p>I need to calculate the total hours and minutes between two dates mentioned in excel. i.e.,   </p>
  
  <blockquote>
    <p>Start date: 02-Sep-2013 02:03:00 AM<br>
    End Date: 04-Sep-2013 02:04:00 AM  </p>
  </blockquote>
  
  <p>The answer should be <strong>48:01 h:mm</strong>.<br>
  Need to consider holidays also, like if 03-Sep-2013 is holiday, then 
  The answer should be <strong>24:01 h:mm</strong>.<br>
  There are no business hours. It should consider 24 hours. Please help me on this.</p>