It’s not a troll post, I’m very serious: UTC+0:30 corresponds to the solar time at the geographical midpoint of the continental EU. The advantages are legion.
Time zones are arbitrary and the result of a historical accident. If the standardisation of timekeeping were to have happened in Amsterdam (not unlikely seeing the history of telescope development[0]) the issue would have been moot as UTC would be what is now UTC+0:19:32.13.