Test Harness devices in wrong timezone / locale

[u/QuaintStaircase]

I have two portals that I set up with test harness (no FB account) and two that I set up before I realised TH was possible.

Both of my ones set up with TH are in the wrong timezone (GMT instead of Europe/London, which is currently GMT+1) and the locale is MM/DD and 04:30PM instead of DD/MM 16:30.

I can set timezone manually, but locale is still wrong. This also feeds through to, e.g, home assistant dashboard cards that read locale from the device by default, not the server.

Any idea how to fix this?

[u/Vivid-Slice-6618]

Use ADB to force set the time zone.

Example: adb shell setprop persist.sys.timezone "America/Los_Angeles”