Re-posting since I think I got skipped. Unless Omega's post was for me =P (if so then I'm even more confused xD)
You don't have to follow jonny's guide exactly. Experiment, we did.
I synch my ds to a clock, turn off and put the game in. Turn on and wait till it hits 30 seconds to hit start. For me, I get it to be 46 seconds at the continue screen, and thus use that for the seconds I enter in RNG reporter. That should answer your question hopefully.
munchlax: thanks for answering a question.