I have a JLU Sport S that I bought in Feb '18, I used to live in Texas and didn't have this issue but now I live in Montana and it drives me nuts. The clock will constantly reset itself an hour ahead, sometimes it takes days for it to happen and other times it will happen as soon as I turn off the Jeep then restart it. I do have the 7.2" display but I don't have the navigation option. The other big problem I am having is that the Jeeps compass is constantly getting stuck on a direction even though the Jeep has made multiple turns. Occasionally the compass reads correctly or for strange reasons it will understand directional changes but display the incorrect direction i.e. it will think S is E. I know my current best option is to take it to a dealer or have the compass re-calibrated, which will probably solve both issues, but I am more curious if anyone else has had a similar issue or if they know of a better possible fix.