Question

Do people around the globe have different rest frames?

Answer 1

Hey mate here is ur Answer⤵

Imagine two observers in (empty) space. Observer 1 sees himself at rest observer 2 moving at a velocity v⃗ v→. However, in the reference frame of observer 2, he sees himself at rest and observer 1 moving with a velocity of −v⃗ −v→. These situations = are essentially symmetric; the physics that observer 1 discovers should be the same as the physics observer 2 discovers because they are both in the exact same situation.
I hope it helps u