title: How can I get the duration in terms of minutes by subtracting a previous time stamp stored in a DB from the present time in C#?
body: <p>How can I get the duration in terms of minutes by subtracting a previous time stamp stored in a DB from the present time in C#?</p>
  
  <p>The previous time stamp format is 13:00.</p>
  
  <p>I want to calculate how many minutes have passed. How to do it?</p>
  
  <p>Plus the fact that the previous datetime Stamp is stored in a DB as e.g.13:00 (hh:mm). So I do not understand how I am able to substract 13:00 from the current DateTime.Now.ToShortString().</p>