How long does someone with skin type II stay in a tanning bed.?

I have dirty blonde hair, blue eyes, and very fair skin. I have determined that I am skin type II (burns easily but tans gradually). How long should I stay in a traditional tanning bed the first few times I go?|||well tanners only max u out at 20 minutes. with ur skin i would have to say 5- 10 mins the first few times, then gradually bring it up. use a SPF too.