Re: How does Buena's Password works?
Her show is only on between 6pm and 12am, every day.
You listen, get the Password, and then go talk to her.
If you've listened to her show that day, that's when she'll ask you if you know the password. Otherwise, she'll just tell you to listen to her show.
If you've already gotten the password/ point that night, and you try again, she'll let you know you can only play once a day.
(just to recap)
If your PokeGear is messed up, stuck on a certain time of day, or changes days, then you probably can't play the Password Game.
What about it you go into the RadioGear and get the Password, then exit? Will the day be changed right away?