Having trouble with mod operator (%). Godot 3.5.2

So, I noticed mod operator is not working the way I thought.
For example.

GDScript Output:

4 % 24 = 4
-4 % 24 = -4

4 % 24 = 4
-4 % 24 = 20

I wonder if Godot´s mod operator works differently with negative numbers

Correct. GDScript % matches C %, unfortunately. For the equivalent of Python % use the posmod function. See here: https://docs.godotengine.org/en/3.5/classes/class_%40gdscript.html#class-gdscript-method-posmod

Best to use wrapi() for most things modulo is typically used for. It'll behave as expected.