The model of Humphreys
In our experience time equals distance divided by speed. Einstein’s General Relativity theory suggests time can be distorted by gravity- some observations support that idea.
Russel Humphreys uses Einstein’s equations. He assumes the universe has a centre and that the Earth is close to this centre - which is supported by our observations and cannot be refuted by science.
Redshift bands suggest our Milky Way is grouped in concentric circles around this centre. Expansion of the universe in the past can be deduced from observations and is supported by Genesis 1:7, Isaiah 40:22+28, 42:5, 45:12, Jeremiah 10:12 and Zacharia 12:1.
If the universe has been stretched out in a short time from a limited universe, calculations using Einstein’s equations suggest gravity caused an impressive expansion of the universe. Observers on Earth would have noticed a much higher light speed and rotation of galaxies. But within these galaxies the speed of light would have seemed ‘normal’, just like their speed of rotation. From a point far into space the time on Earth would have seemed to stand still, but you wouldn’t have noticed that on Earth.
So if God stretched out space very fast, clocks on on Earth (close to the centre of the universe) would tick very slowly compared to clocks in galaxies further away in the expanding universe.
This seems a somewhat mind-boggling theory, but for theoretical physicists it's piece of cake ...
For more on this model use link nr. 5: you will find more links at the bottom of this first article.