Absolute Eternality (Timelessness): This view is the traditional (Augustinian) view that God is absolutely timeless. His timelessness is not affected by the temporality of the universe nor his interactions with it. In the metaphysics of absolute eternality, God experiences all of his life and being in one eternal now.
Relative Eternality (Timelessness): The relative eternality position acknowledges that God transcends time, which is a created thing and dependent upon God, but denies that he is absolutely atemporal because it sees God as actively sustaining a changing world in existence. The relative eternalist therefore maintains that God is timeless relative to physical time but temporal relative to an uncreated metaphysical time that transcends the universe and is a pure duration that flows without change. God’s being is ontologically prior to this temporal aspect of his life and serves as the ground of it.