Setting timezone for Tasmotized ME81H Thermostat

I’ve replaced TYWE3S module with ESP-12 according to this guide and successfully flashed Tasmota.
Thermostat is working as expected over MQTT except displaying the time (i.e. on the physical display of the thermostat).

Does anyone know how to switch the timezone? Currently it’s showing GMT.

Another minor issue is that set temperature is displayed in HA with a factor of 0.1 (shows 1.7 instead of 17), while the room temp is shown correctly. Is there a way to change the factor via the firmware rather than creating some extra sensors in HA?

Thanks, time issue is solved!