I am trying to configure an email alert to display downtime in hours rather than minutes. Maybe add days for the longer ones 
N=Alerting;M=DownTime is displayed in minutes
Took a guess that this would work: N=Alerting;M=DownTime /60
e.g. Object was down for 120 minutes. --> Object was down for 2 hours.
Is there a method to complete this task?