It's not a jeep issue, it's a digital clock issue... All digital clocks have the issue (some drift more, some drift less, but they all drift). Don't blame jeep for a technology limitation. There is a reason the atomic time clocks are a big deal, and there's a reason they broadcast time signals. Sadly, they tried to keep the base headunit barebones.The JK's have the same issue. I'm surprised Jeep didn't figure out a fix for the JL's.