I don't have a direct answer, but just be patient. Sitting and testing won't make it go quicker.
Just wait a month from when you got it and test then, and if it's 0's you should be fine. But I can't answer your question because that's what I did and didn't take any readings.
it means that your cycle is finishing up. first your amm will drop to 0, then your trites, and then your trates will fall, hopefully to 0. best way to get rid of trates is to do water changes.