Sim, definitivamente. Eu não tenho nenhum livro de 4ª edição, mas confira esta seção do 3.5 SRD :
The rate of time’s passage can vary on different planes, though it remains constant within any particular plane. Time is always subjective for the viewer. The same subjectivity applies to various planes. Travelers may discover that they’ll pick up or lose time while moving among the planes, but from their point of view, time always passes naturally.
Normal Time
This trait describes the way time passes on the Material Plane. [...]
Timeless
On planes with this trait, time still passes, but the effects of time are diminished. [...]
Flowing Time
On some planes, time can flow faster or slower. One may travel to another plane, spend a year there, then return to the Material Plane to find that only six seconds have elapsed. Everything on the plane returned to is only a few seconds older. But for that traveler and the items, spells, and effects working on him, that year away was entirely real. [...]
Erratic Time
Some planes have time that slows down and speeds up, so an individual may lose or gain time as he moves between the two planes. [...] To the denizens of such a plane, time flows naturally and the shift is unnoticed.
Essa página lista o Plano Astral como atemporal e os planos elementais como o tempo normal, mas você pode facilmente mudar isso para seus propósitos.