I'm not sure how relevant this is to what you’re asking, but I heard there was work being done on making a map of the universe with the relative time worked out to show a picture of what the universe looks like at one specific moment in time.
Not sure about much of those details, but pictures of galaxies or looking into the sky we see old light, and the old position of the emitter.
keep your mind from this way of enquiry, for never will you show that not-being is
~parmenides