"Third conviction (Aggravated DUI) — Class 2 felony with possible 3-7 years imprisonment; mandatory minimum 10 days in jail or 480 hours community service; fines of up to $25,000; loss of driving privileges for minimum 10 years.
Within five years of previous conviction: Mandatory minimum 10 days in jail or 480 hours community service (terms of imprisonment or community service not subject to suspension/reduction nor is offender eligible for probation); eligible for RDP after one year of revocation; required to have a BAIID installed in vehicle as part of driving relief. "
See the mandatory sentencing guideline. Could get a bit more than that.