Time comparisons within web reports

(imported topic written by mcalvi91)

I am not savvy enough to figure out how to perform timestamp calculations within the web reporting relevance to determine if something is within an offset of time. For example we have a property named “Besclient install time” that lists when the bigfix client was installed. I would like to if a system falls within 36-60 hours of that and has a few other properties set to certain values. Does anyone have any examples of performing date calculations with in the web reports?