Is “Now”, for me, mathematically the same as “Now” for people on the other side of the world?

Question

I have only a very vague awareness of the idea of relativity but I’m aware that there’s a concept that people in orbit experience less time than those on the planet due to gravity, in some way.

Does this mean that the idea of “now”, as in a moment that is right now, is marginally different for people in other places? Are they experiencing a moment that is in my objective future/past, in a mathematical sense?

In: Physics

Answer 1

Now is now everywhere. But due to relativity, you could wait 10 seconds, and someone else might wait 10.001 seconds, and you’d still be at the same point in time together. Because time moves faster/slower due to relativity.