Cameo Simulation Toolkit includes a (basic) TimeEvent, but fUML-1.3/1.4 does not. There are many different supported time units for duration constraints, and you can also use property values in durations.

But Magic Model Analyst^® (Cameo Simulation Toolkit^®) DOES support TimeEvent (and ChangeEvent).

TimeEvents can be particularly useful for coordinating and testing synchronisation for complex simulations.

Using property values in durations

TIP: Apart from manually entered after (2 s) or at (2 s), for example, you can use numerical properties known to the context, like:

after (var s)

Or with some maths like:

 after (2 * var s)

However, please be aware there is a typo in the official docs (still as of v2024x):

xs is considered the value of the property x in seconds.

It means of course (with a space before the time unit):

x s

There are many different supported time units.