If you are interested in the run duration of the jobs on your SQL Server you would most likely query the system tables sysjobs and sysjobhistory from the msdb database in a manner similar to this:

select name

,enabled

,run_status

,run_date

,run_time

,run_duration

from msdb.dbo.sysjobs sj

join msdb.dbo.sysjobhistory sjh

 on sj.job_id = sjh. 

What is interesting (and yes, it could be misleading!) is that the run_duration is presented by the following formula:

(hours*10000) + (minutes*100) + seconds

The bottom line is: do NOT think that the run duration is converted to seconds. Here is an example: if a job has a duration of 102950, this means that the job executed in 10 hours, 29 minutes and 50 seconds.