[2022] I don't understand the PVP rota

So I'm from Australia and enjoy playing LMS. For the last few days the wiki has said that world 390 was an active Australian LMS competitive world (and still says that now), though if you looked in the world switcher it actually was not. In the most recent newspost by jagex they say that the 390 Aus LMS world has just been deactivated, but actually, if you look at the world switcher, it appears it that world 390 has just been activated and is now a competitive LMS world. But, if I go and have a look at Ferrox Enclave in world 390 right now, there is not a single person there.

So, two questions:
* How does the PVP rota work, and why do the wiki, jagex newsposts, and the actual world switcher all say completely different things?
* When, if ever, can I play LMS on Australian ping?

Thanks.