time keeps changing on my 2019 Jeep Cherokee Latitude 4x4

Warranty.

Does it have the flux capacitor option?

Welcome to the crazy world of Jeeps. It’s doing this cause there is a voltage problem in the keep alive circuit of either the vehicle itself or the radio head assembly, only the dealer can find out what direction to go if they take the time to do it right.

Too much electronics on all these new vehicles. They radiate signals that interfere with other devices. That's why they tell people to turn off all their cell phones on an airplane, and at the hospital.