User blog comment:Elit3Blaze/Regarding Accuracy of Ranking Trends/@comment-25102474-20150917034603/@comment-26488388-20150917042345

Yeah, I've got the same predicament as you. I'm sitting around ~5000, but I always get within top 3000 when adv EH is released simply because I'm playing casual. To be honest, I'd be pissed if the ranking info for 3000 was removed; although I probably wouldn't rage, I'd still be disappointed.

By the way, to answer your question -- the ranking info is updated based upon Japan time, so basically in accordance to whatever day/time it is inside VC; that's 1 hour ahead of you (JST is GMT+9?) if I'm not mistaken.