If we can have a common time between two points in space, even if for point A the time is corrected with relativity, doesn't that mean that we can have a common

If we can have a common time between two points in space, even if for point A the time is corrected with relativity, doesn't that mean that we can have a common time for the universe? i.e. in other words, simultaneity is real for any two points in space.