If you are convicted of DUI for a second time within 84 months (7 years) of your first offense, you face substantially greater penalties, including at least 30 days in jail, steeper fines and fees, mandatory community service, and the revocation of your driver's license for a year. After 45 days, you can drive with an ignition interlock device. If your second offense happens more than 84 months after your first, you face the same penalties as a first-time DUI.