How long does it take for a #3 buzz to grow back out?

Wow no man haha i get buzz cutts every few weeks and i have got a buzz cutt and tried letting it grow all the way to long hair so i can spike it ive done this many times and it grows back very very fast trust me and no it grows back evenly! And it looks less pointy/spiky after a week or two because it will grow longer and flatten down a bit