How to implement interval logic:?

[Kaesebrot84]

In my component I have a button which generates a timestamp. I also want to show a div which holds a timer, which is triggered by the button and shows a timer constantly running and displaying the time passed since the button was pressed.

AI suggests using use_interval which does not seem to exist. I also found this older issue which suggests using gloo-timers.

I am a little surprised, that I need a dependency to implement a component like this. How would one go about implementing this?