What countries is "early mark" used in? It means being let out of something, typically school, early.

onelook.com only reports it being mentioned in Urban Dictionary, and it doesn't have information on what varieties of English use it.

Google ngram isn't very useful - too many uses of early mark without it having the meaning above.

Oz Words is even claiming that it's only used in some parts of Australia, while Superlinguo says its reach extends as far as New Zealand.

Is "early mark" only used in Australia and New Zealand?