AppDaemon and sunset?

Hi I had an app in AppDaemon which turned on my lights at sunset. Now with version 4 my lights are turned on at 15:10 in stead of 16:50. Too early.
I have set time_zone in Appdaemon.yaml to Europe/Amsterdam, so that must be correct, also in HA config the timezone is Europe/Amsterdam.
I used to pass the sunset - 00:30:00 as a parameter to the app, but that was the first top go wrong, now I call self.run_at_sunset(self.set_lights_on,offset=-1800, lamp=“light.schermerlamp”) in the initialisation of the app, but still the same.

Am I missing something?