So, I'm making a city building game similar to clash of clans. When the player builds something, a timer appears on top of the building showing how much time it takes to finish (e.g. 10 minutes). I'm now trying to figure out how to make the timer continue when the game is closed or the computer is shut down.
How can I measure the time since the game was last opened?
I considered using OS.get_datetime() but I'm new to godot and don't really know how that works.
Thanks in advance!