[LemmyInThePub]

In the UK, it isn't necessarily accent per-say.

In North England and Scotland, we pronounce words using short vowel sounds (bath, castle) whereas in the South, they use long vowel sounds (b-are-th, c-are-stle).

Not being able to easily pick out the vowel sounds makes it much harder for a non-native speaker to understand.

The so called "BBC English" that you probably learnt is based on a Southern England 'home counties' pronunciation.

[JasonFruit]

It's not clear to me how regional differences in vowel pronunciation differ from accents.

[ehnto]

You may also hear BBC English called "The Queens English"or just Queens English.

[LemmyInThePub]

Kings English old chap :-)