Ignore non-working days for time-based rules
It would be really useful if you could choose to define days as "non-working" that would not count as elapsed time for SLAs, automations, etc.
e.g. You set Saturday and Sunday as your non-working days, and you have an SLA saying issues should be solved within 72 hours.
An issue reported Friday morning would then not be flagged as threatening this SLA until Wednesday, rather than Monday.