I recently reset my Android Things on my Raspberry Pi 3 because it was unable to find my own WiFi. After the reset I tried to go into settings and change the time zone to GMT+02:00.
If I click at any other time zone except GMT-07:00 or GMT-08:00 the list of available time zones jumps back up to the time zone currently selected (e.g. GMT-07:00).
This happens regardless of whether I have Automatic date & time selected or not.
I used to be able to set the time zone correctly and I have successfully programmed stuff on my Rasp Android Things for several months now. It was only after the factory reset that this occurred (although it is possible I have done something else to cause this).
I did not know what to call the "default screen" of Android Things, so below is an image to clarify what I mean by "default screen". EDIT: The image is just a copy/paste from the internet. I'm running version 1.0.