I got my Note 9 last week, and I've noticed that the time in the status bar doesn't update correctly. It is currently 4:04, but my status bar shows 3:52. If I let the screen timeout and turn off, the lockscreen clock shows the correct time, but when I unlock the phone, it still displays wrong in the status bar. At some point, the status bar will finally display the right time. The longest differential I've seen is about 15 minutes. This persists across unlocks and power cycles. I've tried changing the update method from auomatic to manual and that didn't change anything.
So far, this is the only issue with the phone. Any ideas of what else I can try? The folks at the Verizon store didn't know of anything.