HA Assist with Google AI LLM tells GMT0 time for net Sun rise instead gmt+1

Configuration Voice Assistant
1

When I ask assist for the current time, it’s correct.

If I ask for the next sun rise, it tells me the GMT 0 time. I live in a GMT+1 time zone, Germany.

Time zone is set correctly.
If I’m looking into the developer tools, the time for next sun rise is in GMT 0.

If I’m looking via the frontend sensor sun, it’s GMT+1 time. See screenshots

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What do I wrong. Wasn’t able to find the correct core integration, otherwise would open an issue

2

LLM is a black box. The only way to influence it is to create quality promt.
HA settings do not matter.