title: What is the best way to deal with time math in Perl?
body: <p>I am running through two large log files and I want to compare timestamps.</p>
  
  <p>I already wrote a Perl script to find the matching log statements, but I need to find the difference in the timestamps.  </p>
  
  <p>For example, 15:31:19.430888  minus 15:31:19.427763 </p>
  
  <p>Are there any good constructs for dealing with time in Perl? I don't want to deal with time math myself if I can avoid it.</p>