“Time is like a river made up of the events which happen, and a violent stream; for as soon as a thing has been seen, it is carried away, and another comes in its place, and this will be carried away too.” — Marcus Aurelius Modeling is an important part of software or system development, yet it is not common to see time being used when trying to capture the behavior of a system. When we do, we tend to extract this concept and put it outside the domain in the form of scheduled tasks. In this a...