EvoHome zone setpoint timezone problem

[Sjoko]

When I set a temperature for a specific zone through the "set" button with the until-option,
the time I specify is stored correctly (it seems),
But the wall-unit and the app show it with 2 hours added.
This can be verified in the wall-unit and the app, and immediately in the domoticz zone set-gui(set-button).
The temperature page displays the setpoint for the zone correctly

Ie.
Set-gui to 13C until 2026-04-16 10:00
Temperature page : "Until 2026-04-16 10:00"
Wall-unit: Until 12:00
Mobile-app: Until 12:00
And (much later!) in the Set-gui: until 2026-04-16 12:00

Seems a timezone setting problem to me, however:
domotics gui show correct time: 09:08:10
and the OS settings are as follows;

root@pi:~# timedatectl
Local time: Thu 2026-04-16 08:37:34 CEST
Universal time: Thu 2026-04-16 06:37:34 UTC
RTC time: n/a
Time zone: Europe/Amsterdam (CEST, +0200)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no

What am I missing ?

Version: 2025.2
Platform: Raspberry Pi OS
Plugin/Hardware: Evohome via Web API

Thanks