Hey, I was about to run the ILs but I'm a bit confused about the timing. "Time ends when the level is finished" What's that supposed to mean? When does the level end? When the last square is completed or when the transition to the next level starts? Same goes for when do I start the timer on every level except the first one.

The level is started the frame that you interact with the level, and it ends the frame that the last circle completely fills. Hope this helps, if you have any more questions feel free to ask them.