How do you change clock from military time on 2008 saturn ion

SOURCE: change the time 2005 saturn ion

1. Press and hold RCL button
2. While holding RCL button push left side of AUTO/TONE rocker button until correct hour appears
3. While holding RCL button push right side of AUTO/TONE rocker button until correct minute appears
4. Release RCL button when finished

Or if you have an "RDS" (Radio Data System) you can find a radio station which transmits some kind of text (ie the call letters or song name) you can hold the 'RCL' (timeset) button and push the RDS button. It will attempt to read the time from the data stream and set the clock for you. Otherwise it will say something like 'No RDS time set'. you need to tune a station with RDS - it won't scan them for you.