It would make sense to have Portgual and Ireland in the Western Europe time zone. They are right over the border from UTC but it makes sense to include them with neighbors. Especialy when they are currently in UTC. It is Spain and France that need to move.

For what it's worth, Spain and France were on GMT (as it was back then) before World War II.

(Technically French law referred to the time as "Paris mean time, retarded by 9 minutes and 21 seconds" - they had thought the Prime Meridian ought to run through Paris rather than London and were sore about losing that.)

Oh interesting.

Admittedly that map is a bit difficult to read as a colorblind person.

Poor Yukon, skipping 2 time zones