If the sensors are the ones off your other rims, they would work almost immediately, or immediately. With a second set of sensors, it will take up to 4 drive cycles for the computer to recognize the new sensor signals.
The sensors are off I would presume the 2010 mzdaspeed3. I haven't taken off my old sensors off the old mazda 3 rims.But i haven't had the tpms light come on so i guess im good.