We've datamined the dungeon timers for the Dragonflight Season 3 Mythic+ dungeons!
As this is the first round of the 10.2 PTR, these timers are subject to change as Mythic+ tuning and changes continue.
It's interesting that the dungeons in this Season are either super long or super short. These dungeons are much longer than Season 2, and I think we'll see people prefer the shorter dungeons over the longer dungeons as is typically the case with how big the difference is in timers.