**yes I am aware that this is an old topic, but it is way to yummy to resist ^^**

well, that would depend on how far away point B is in reference to point A

assuming it if further away than 299,792,458 meters, then it would take more than a second.

second, the energy to accelerate to 299,792,458 m/s would not be infinite, really high, sure!, but not infinite.

and even if you would succeed, you would need a HUGE vacuum not to disintegrate, and no, you cannot use space.
because there is dust and debris everywhere and thus you would get hit and rip into pieces, and on earth, forget it. the friction from the oxygen would rip you into pieces.