** On a specific Site,the Operational Hours could be defined from 9 AM-5PM and that means Time Elapsed calculation takes into account only the hours inside the Operational Hours.
** Holidays defined would mean the Time Elapsed calculation will not consider those days.
** Based on the Timer status configured for the Request status, the TimeElapsed is calculated.
For example,The "OnHold" status is by default configured with Timer status stopped and so the Time Elapsed won't account for the time in which the Requests are in "OnHold" status.
Logic Used:
Request Closed time (minus) Created time of the request excluding holidays,on-hold time and non-operational hours.
(Or)
Resolved time (minus) Created time of the request excluding holidays,on-hold time and non-operational hours.