I have a requirement to report on the amount of time used for an end-to-end proc

I have a requirement to report on the amount of time used for an end-to-end process flow. There are some complexities within the process flow that may cause ad-hoc extensions to the time allowance for that flow, so I am looking at creating a database table to record the initial time allowance, time used up already (for completed tasks within the process flow) and additional time allowances. The resultant data is to be displayed on reporting dashboards.
My question is around the best way to represent those positive and negative amounts of time. I see that there is a Time data type in Appian, but is that used to represent an amount of time, or the time of day? (Can it be negative?)

OriginalPostID-219721

OriginalPostID-219721