Worth noting for those looking to set the time and time zone on their Android Things boards. I found the method that works in a Github repository (a Bluetooth sample project). Also here is a list of time zones: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.
Setting the Time
You can set the system clock date/time manually on your Android Things board with the
date shell command over ADB. By default, the command accepts a new date in the
# Reboot ADB into root mode $ adb root # Set the date to 2017/12/31 12:00:00 $ adb shell date 123112002017.00
You can set the system time zone manually by updating the
persist.sys.timezone system property over ADB.
# Reboot ADB into root mode $ adb root # Set the time zone to US Mountain Time $ adb shell setprop persist.sys.timezone "America/Denver"