Just as Leonard had said, from the divine era to the present, all the Transmission Arrays behaved in the form of *"a moment of darkness and then arriving at the destination"*, but the world's time flowed normally.
A week might have passed, or perhaps a year… it mainly depended on the distance traversed between worlds.
All of this followed established rules.
Raphael fell from Heaven to Hell, spending nine days and nine nights in the process. Normally, crossing a world required *"a day and a night"* to complete.
If one genuinely needed to spend this time enveloped within the seal, it certainly would not be called interesting.
And should one move around recklessly during this process, it was indeed somewhat dangerous. For instance, if one inadvertently broke through the Mana-formed *"outer wall"* of the Transmission Array while playing around, they might be mistakenly teleported to an unknown plane.