Make a timer go between scenes?

I have a timer that works in the first scene. I used this

I don’t know what to do next to bring it to the next scene and continue from when the character hits the scene trigger.
Example: If the character hits the trigger in scene 1 at 19 seconds, I need the next scene to start at 19 seconds and continue from there.
I know I have to make this a global variable but I don’t know how to do that and how to recall and continue it in the next scene. Thank you

Store the final TimerElapsedTime of the timer into a global variable, then add that variable to whenever you make a check regarding the timer of the second scene.

How do I do all of that?