[torqueusers] reading the "Time Use" in qstat

[bill]

Hello

I' m not sure what means the "Time Use" column in qstat.

Job id              Name             User             Time Use S Queue
------------------- ---------------- ---------------- -------- - -----
128.m1              possession       ghon             44:35:09 R batch 

157.m1              ...ession_parall ghon             00:00:00 R batch 


The jobs are pretty much equals. Both jobs are running for two days now. 
Why there is one consuming Time Use, and another one not?

Thanks