Shiba was sent flying backward.
That wasn't the first time, but he had already lost the count.
He didn't know how much time he had been facing the custom tribulation prepared by Shadow Liye, but if he needed to describe it, the word eternity would be fitting.
It was impossible to measure the pass of time inside the Timeless Border, so it wasn't strange that Shiba's perception turned out like that.
The tribulation was far too difficult. His Earth Tribulation seemed a joke compared to what he was facing.
He even felt that Lina's Eater Essence Tribulation had been far easier than what he was facing, but he couldn't complain as he was technically facing three tribulations at the same time, which was usually considered crazy.
The only good point was that he wouldn't die no matter what in that tribulation, but he would need to remain there until he finished.
As for how much it would be in the real world, based on Shadow Liye's explanation, it would be random.