Creating an Animation during Play

Hey there running into another problem:

I want to try to start an animation whenever a new for instance a second has passed.

I thought this is done by the tick on Clock. however it seems that it is always triggered even when the clock is paused.

So can i use

  viewer.clock.onTick.addEventListener(function(clock) {

and use conditions for the time inside the tick to start my animations for instance?

(like if ( clock.currentTime() < something )) dosth();

or is there another approach or class meant to achieve this ?