thanks, but from your experience what is the quick answer to my question?
for example : a case was created , then after 2 hours it is cancelled, it stayed cancelled for 3 days, then reactivated, after 6 hours from reactivation time is got resolved.
now the total SLA is :
2 hours + 6 hours = 8 hours or
2 hours + 3 days + 6 hours = 3 days 8 hours ?