Manual way to adjust clock in PMP?

  1. SSH into your embedded PMP machine.
  2. Type ls -l /usr/share/zoneinfo to list the region names and find YOUR_REGION_NAME .
  3. Type ls -l /usr/share/zoneinfo/YOUR_REGION_NAME/ to find YOUR_TIMEZONE_NAME for your region.
  4. Type echo 'systemctl set-environment TZ=YOUR_REGION_NAME/YOUR_TIMEZONE_NAME' >> .config/autostart.sh

FROM: [Updated] Embedded Plex Media Player x86_64: Workaround to reflect localtime in UI

IT WORKS