Times for working garments (6)

I believe the answer is:

shifts

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'garments' is the definition.
(shift is a kind of garment)

I cannot understand how the remainder of the clue works.

(Other definitions for shifts that I've seen before include "Moves for work sessions" , "Moves with work periods" , "Changes from one position to another" .)

I've seen this clue in The Guardian and The Globe and Mail.

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