How do I a countdown timer that doesn't stop even if the player closes the game?

Hi, I want to make a countdown timer that doesn't stop even if the player closes the game.

So far I have managed to get the total time to be saved in localstorage and if the game is closed, when it is opened again the timer starts where it left off.

But what I need is the time don´t stop. I hope you can help me, thanks.

This is the code that I have

Look at the date plugin. With that you can access the computers real clock. I think the basic idea is you'd save a timestamp to local storage when you close the game. Then when you run you game again, it compares that timestamp with the current time to see how much real time has passed.

Ok thank you. I will look for how to do it