Question : How to check if a sql job is running for a long time

how to check if one of the sql job is running for long time.
i have seen some of my jobs when they fails they just keep running for the long time.
I would like to find our if the job is running for a long time (6 hours) then just stop the job and run it again.

Answer : How to check if a sql job is running for a long time

sry - missed a bit

select      datediff(m,getdate(), min(h.run_date)) as minutes_running
from      msdb..sysjobs j, msdb..sysjobhistory h
where      j.name = 'your job name'
and      j.job_id = h.job_id
and      exists (select 1 from msdb..sysjobhistory h2
                       where h2.job_id = h.job_id and h2.run_status = 4)