time: Time Resources

 
 1.2.1 Time Resources
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 'E'
      Elapsed real (wall clock) time used by the process, in
      [hours:]minutes:seconds.
 
 'e'
      Elapsed real (wall clock) time used by the process, in seconds.
 
 'S'
      Total number of CPU-seconds used by the system on behalf of the
      process (in kernel mode), in seconds.
 
 'U'
      Total number of CPU-seconds that the process used directly (in user
      mode), in seconds.
 
 'P'
      Percentage of the CPU that this job got.  This is just user +
      system times divied by the total running time.