Why not every country can decide what time they want to keep?

Your argumentation structure is similar to holocaust denier: ”I’m not personally affected by it so it must not have affected others.”

Officially tap water in Malta is drinkable but somehow several hotels I visited have instructed not to drink tap water and office I used had water filters installed on tap.

There is problems in EU countries too so I would not always trust the official declaration especially when country has higher level corruption - example like Malta.

I tried when I visited Munich and it was like drinking from swimming pool.