However, which measure is correct?

 The theory of relativity suggests that each observer can claim that they are the stationary reference frame, but can two observers claim that they are stationary frames at the same time?

If we consider that yes, now, in an example, me being here on earth, under the rotation of the earth, and another person on Venus, under the rotation of venus, then something occurs strange in geometric nature, opens up an extra space of measure between the two, as much as it does not seem to exist, like a hole in space,  that leads to another space, which we do not see, facing our eyes.

The way out to answer that extra space, is to assume different times, personal clocks, so if you say your own time, each person is in their own time, and observes the world for different times.

I prefer to say, as I have experienced, that it is not time itself, but parallel world entry or exit. A different step can take you to another world, as in Harry Potter, when you walk through a wall for the Hogwarts Express.

You may think I'm crazy, but I'll explain to you why I quoted Harry Potter:

We assume that So-and-so is rotating and claims that it is the stationary frame, and Beltrano is also rotating and claims that it is the stationary reference frame. In this case, analytical geometry has to assume one or two things, that there is own time, each observer is in his own time, and here one already assumes differences of reality between So-and-So, now, each of them sees the world from a different point of time in the world and this is the same as assuming parallel worlds. The analogy to Harry Potter would come from the part where, for example, So-and-so gives a special stride and ends up meeting at the same time, consequently, in the same space, of Beltrano.

And there's the magic of life, every person is in their own personal universe, enjoying their world from a unique perspective, by a universe of personal uniqueness. How many universes are there anyway? Today, with me, in my time, more than 10 billion parallel and personal universes. This is wonderful.

Once, the witches introduced themselves to me in a very peculiar way. It was the end of a beautiful afternoon and the sky was beginning to turn orange, very strong, those beautiful autumn endings, without rain, with very few clouds. I was based and I decided to stop by a supermarket in that town. When I came in, I noticed it was too crowded, and as soon as I went to get my soda. Usually the markets leave the cold drinks in the corners of the markets, on the wall, inside the refrigerator, so I directed myself to the right wall, in my reference, of the market. After the desired soda, which cost R$ 3.39, I went to the cashier, which was full. I had a family just in front of me and something caught my attention, the woman in the family came and went with new products that she put in the cart that was already full, and by itself, in the crisis that we were this was already very strange. After half an hour waiting for the girl to go and return with new things to buy, the account that should leave around R $ 600, cost them the bagatela of R $ 74. Yes, a cart full of shopping for seventy-four reais. Magic or scheme? Calm.

When my turn came, the cashier asked me if I wanted to be found another soda, since mine had warmed up and Asked if she gave me the note I could myself fetch, she accepted. Then I went to the same wall and then the magic occurred. The soda container was no longer there, was somewhere near by and didn't cost another three and thirty-nine cents, but two and twenty-nine. Then I realized that the wizards allowed a Muggle to meet them. It was fantastic.