I'd fight tooth and nail for them not to take an hour of sunlight from me during summer evenings.

It is not roughly the same if the sun rises an hour earlier instead, at 04:30 instead of 05:30.

I don't get up before 08:30 and I will not somehow adjust my schedule by three hours to use the sunlight in the morning.

The sun rises when it rises, it has nothing to do with the clock. How does what the clock say take an hour of sunlight away from you? It is surely your employer doing that not the clock.