Look up a map that depicts them .. it's always a little bit more messy than you thought.
The Netherlands lives basically in the wrong timezone continuously. It would fit better to have +0 and +1 like UK, but they have +1 and +2 which makes +2 a rather extreme offset.
In Australia, iirc, there are two timezones that share the exact same code but with different meaning. It's probably easy to find more such weird examples.
It's all so lovely. 😋
