That’s the correct return.
So I repeated your experiment: setting time zone manually on the controller to +14:00, upon NTP syncing, it got the time of UTC+14:00, then after about 30 seconds it reset the time zone to UTC-5:00 and obtained the current time of UTC-5:00 (because the location is Boston,MA). I can’t reproduce the issue you reported, and I honestly don’t have a clue.