[timr]

I don't know if it differs by country, but that's incorrect for residents of the US, and various countries in western Europe. You get 90 days per stay, with 2 stays a year.

(edit: I could be wrong about the 2 stay max. It might be higher. I'm pretty sure I entered Japan more than 2 times in a single year on a visa-free waver, but I don't know if there's some window that applies.)

[presentation]

2 stays max is not officially written anywhere but about 180 days is the rule of thumb people usually go by.