Hello there!

So, first things first: this is really not the place to discuss such a topic, given that this section is for introductions. With that out of the way, let's get into the issue.

From what I gather from your post, I understand that you're trying to use the "Game Time" timing method instead of "Real Time". Now, the thing with "Game Time" is that it works exactly like Real Time, but with the difference that if the game you're running has a load remover available, it'll pause the timer during load times. Thus, If you put a Real Time timer next to a Game Time timer, you'll see that Game Time will pause during loads while the Real Time will not. That is the key difference between the two.

With that in mind, testing the Game Time timer with the game closed should be no different to the Real Time timer.