title: Time difference using awk
body: <p>I am looking for a one-liner awk code to find the difference between a time and system date. The time format is like this: 16:13:04,699 I want the difference in minutes. I am not quite familiar with awk, I can calculate this difference by writing a script but want to do it in one line.</p>
  
  <p>Thank you.</p>