When is prestige recalculated for dungeon bracket

ZADO1991

Hi there, just wondering if I boost my prestige over 3200 last minute before the dungeon starts tomorrow will I get into a higher bracket? Or should I do it now? Have to buy a t4b from infinity dust store to get my 5th 4* r4 in order to accomplish that. Many thanks!

Woody_feder

I think it resets when the dungeons do