@MagicBiscuit this is a good idea.
How to make a global timer
First, we need to make a Second scene timer for the scenes that we want to have the global timer
Now, we need to make a global variable that will be the timer value
So, every second in the scene, the global timer will increase one second
Now, make the same code in the scenes that you want to have the timer
And… Your global timer is ready! Now you can verify it values to make conditions!
I hope you like my reply <3