Typical occasion in temporal zone (8,4)

I believe the answer is:

standard time

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'typical occasion' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'temporal zone' is the wordplay.
'temporal' becomes 'standard' (I am not sure about this - if you are sure you should believe this answer much more).
'zone' becomes 'time zone' (time zone is a kind of zone).
'standard'+'time'='STANDARD TIME'

'in' acts as a link.

Can you help me to learn more?

(Another definition for standard time that I've seen is " What passes locally".)

I've seen this clue in The Daily Express.

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