In August 2025, the standard MaxTime on the Farm was reduced to 24 hours.  If there is idle Farm capacity, longer jobs can be submitted using the longrun QoS, e.g.

#SBATCH --qos=longrun
#SBATCH --time=2-00:00:00  # Requesting a 2-day job

but they will be preempted by any jobs in the normal QoS.  The longrun QoS currently allows jobs up to four days:

lsh@ifarm2401 ~> sacctmgr show qos longrun format=MaxWall
    MaxWall 
----------- 
 4-00:00:00