Instead of "From 9 to 5 from Mon to Fri", be able to say "From 9 to 5 from Mon to Fri, except on Dec 25, Jan 1, etc". This allows to take plan for holidays, teammate PTOs, company events, etc.
Other time-based metrics consider business hours (response time, reaction time, resolution time), but tag duration does not.
When tag duration is used to measure business processes, it is helpful to ignore periods where people are not working
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