@Chinmayy honestly, I’d probably use custom properties and create calculated properties for each of these. For instance, in ur portal we have a custom Object called “Serivces.” And in that object, we have a date property for for when the service was created, and one for when the kickoff call is scheduled, so that we can have our calculated property of “time between created and kickoff call.” This way on each record we have that data.
If I wanted to create a report based on that info, I’d probably create a gauge report of some kind in the custom report builder.