But in how many places during 'normal time' is this even actually true? No where in Spain is this true, and even for territories within their timezone, only a tiny sliver of land actually meets the above criteria.
In England, the further east or west you get from GMT, the further you are from the Sun being the highest at noon by minutes, quarters and more.
Timezones aren't even really accurate currently if we ignore daylight savings time, so why pretend it is?
And honestly, if the purpose is for there to be more lighter hours during the evening, why not just adjust time so our current 14:00 is 12:00? And stick with that all year round?