Later that day, Ling Zhao and his party realized that the River of Time inside the dungeon has a big difference compared to the surface.
Lady Quan Im apologized for not telling him sooner about the Time Dilation. For her, as an ethereal being who had detached herself from the physical world, time passage was nothing but just a set of nominal calendars used by mortals.
This fact did not possess any issues for Ling Zhao since he had the enlightenment of the Law of Time and Space after he completed his Heavenly Tribulation and ascended to the Sky Realm.
What was burdening the back of his mind was the big gap between two places. Had he spent a few days inside the dungeon, months must have passed in the real world.
It's true that the dungeon had a bountiful harvest after he conquered the floor, however, it would put a stall on his cultivation greatly while he was still wearing mortal flesh as the vessel of his soul.