It is possible to use US thermostats like the rth9585wf in europe, but if I register it at, I only can choose between US timezones, so the thermostat gets the US time. If it is connected to Wifi, setting the time manually does not work. Is there a way to force the thermostat to another time zone or to enable manual time setting and keeping it connected to wifi?

(using and its app is not working very good)