It might just be wishful thinking on my part… but it looks like the people in charge of leaving are so mindbogglingly incompetent that Britain might have accidentally joined the Euro by then.

Accidentally.

Pretty sure they won't be changing tome zones differently from the rest of Europe. Or maybe I'm wrong and that's one of the freedoms Farage holds so dear.

Putting the Republic of Ireland and Northern Ireland in different time zones would be.. annoying, at the least.

Then again you said Britain, not the UK, but I can imagine the DUP protesting pretty loudly if NI were in a different timezone to GB.

Nomenclature is fun.