Some components of teleodynamics might be pertinent to your intended changes to the present tense of the timeline.

Switching from the geocentric to the heliocentric model of the solar system does not change the direction that the planets move, it models the very same movement in a different way. — Metaphysician Undercover

Consider: the earth with respect to the sun and the sun with respect to the earth when the sun orbits the earth. In the limited context of this relationship, is the earth stationary and the sun mobile?

Consider: the sun with respect to the earth and the earth with respect to the sun when the earth orbits the sun. In the limited context of this relationship, is the sun stationary and the earth mobile?

In making a comparison of the two above considerations, do you say the two considerations model the very same movement in a different way?

The first statement of "when the sun orbits the earth", is what we know as the rotation of the earth on its axis. The second statement "the earth orbits the sun", is what we know as the earth revolving around the sun. These two do not model the same motion.

What we model as "the rotation of the earth" is the same motion as what you described as "when the sun orbits the earth". If we know the distance between the earth and sun, and assume the earth to be a point at the centre of a circular orbit, we could calculate the speed at which the sun orbits the earth, in that model in which the sun orbits the earth.

Time is unidirectional, future to past. This is an activity of the world, what we know as the future becoming the past, The day named as "tomorrow" becomes the day named as "yesterday" through this activity, this process of the future becoming the past. — Metaphysician Undercover

Jan 5 is in the future before it is in the past. The flow of time has that portion of time named as Jan 5, in the future prior to it being in the past. — Metaphysician Undercover

This process of the future becoming the past has the arrow of time moving in which direction: a) the events of Jan 5 change into the events of Jan 4; b) the events of Jan 4 change into the events of Jan 5?

Since you say, “time is unidirectional, future to past,” and also you say, “the day named as tomorrow becomes the day named as ‘yesterday,’” logically we have to conclude the arrow of time moves from Jan 5 to Jan 4. Entailed in this is the logical necessity that you become a day younger as the arrow of time continues to move from future to past.

Have you ever grown a day younger in your life? Speaking more dramatically, can you remember being ten years older than you are now?

Does today become tomorrow, or yesterday? Your answer speaks to your perception of the direction of the arrow of time.