This is a great conjecture, Roselily. It is possible that Angels exist in a realm where they are partially, or, fully, aware of time. The theology says “that they are not subject to the laws of time, but have a duration measure of their own.” - The Teachings of the Catholic Church, Vol I, p 259. However, it must be remembered that, for us mortals, time is more an awareness of a passage of events, or, event, than a physical thing, or, real object.
Time transpired, in the universe, prior to the foundation of life on earth because motion began to occur from the moment (Planck length) after the initial burst of the Big Bang. God is said to exist in an Eternal Now. The Now is not a part of time. It is that which is situate between the outermost surface of the past time continuum and the outermost surface of the future time continuum.
God is said to exist outside of time, in a Now. Unlike our momentary Now, God’s Now is Eternal. The notion of Infinity precludes existence in time. In order to exist in time, created things are, and must be, finite.
God bless,
jd