Same on my '16, and if you told me that setting the clock in a car would ever be that complicated, I never would have believed you. And we have the Daylight Savings Time set to "on", but still have to adjust the clock twice a year.What year?
On my 2014 Limited, the clock function on the multi-display can only be set when the car is stationary and in park.
You use the levers on the left side of the steering wheel to cycle through to the clock, use the bottom lever to cycle to the minutes, pull the center SET lever and then use the top or bottom to go up or down to select thr right minute and then pull set lever again. move to the set icon on the screen and pull set lever again and then it's done. Then just use the go back icon to the beginning.