What time? (4)

I think it could be either:

Which length description are you looking for?:

2-2 4*

'what time?' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for when that I've seen before include "As soon as" , "Say it when you''ve had enough" , "Over what period?" , "At what time?" , "stop pouring the drink" .)

I've seen this clue in The New York Times, The Star Tribune, the Penny Press, the USA Today and the Universal.

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