Said two things.

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I’d think that this sign is not there because of American tourists. All the Americans I’ve met while traveling, have acknowledged that English being their native language is a privilege and have been very polite towards people who don’t speak English that well. But in Europe English has become the universal language and it’s easy to forget that not everyone can speak it as well.

Having worked in a couple of European countries, I thought 7.5 hours of work plus a half an hour lunch break is the norm everywhere in the western world. So the 9 to 5 did totally make sense to me. I was honestly surprised reading all these comments.