With a USB keyboard plugged into the unit:

  1. Press the Option key (could be a windows logo, or Alt key depending on keyboard). This should bring up a menu in the upper left of the screen.
  2. Use the arrow keys to go down to "Accessories", then arrow right, and down to "Terminal" and press the Enter key. This should bring up a black terminal window.
  3. Type the command: sudo apt-get install rdate then press enter
  4. When finished, type: sudo nano /etc/rc.local. This will open a file.
  5. Near the bottom of the file, above the line “exit 0” added the following: sudo rdate -s time.nist.gov
  6. Press ctrl o then enter then ctrl x then enter to save and quit the file. 
  7. Last, type sudo reboot to restart the unit and apply the changes


If the above doesn't seem to work, the following steps can also be followed: 


  1. Press the Option key (could be a windows logo, or Alt key depending on keyboard). This should bring up a menu in the upper left of the screen.
  2. Use the arrow keys to go down to "Accessories", then arrow right, and down to "Terminal" and press the Enter key. This should bring up a black terminal window.
  3. Enter the following commands:


sudo apt-get update && sudo apt-get -y install ntp

sudo systemctl stop systemd-timesyncd

sudo systemctl disable timesyncd

sudo /etc/init.d/ntp stop

sudo /etc/init.d/ntp start


After the above command are completed, the time should start to synchronize automatically.  You can reboot the device to ensure that the date/time remain synchronized.