How long does your license get taken for when you get a DUI?

This varies by jurisdiction (usually controlled by state law) as well as whether it is a criminal or civil penalty, as well as a criminal conviction or plea agreement. In Ohio, the Bureau of Motor Vehicles will suspend your license for one (1) year on top of any criminal penalty you may receive. The Ohio BMV will also suspend your driver's license for a year if you refuse to blow into the Breathalyzer (that's a trademark; not sure they use that brand of blood-alcohol level monitor). This is a civil or regulatory penalty and is imposed without a trial or other adversarial proceeding.