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English definition of “p.m.”

p.m.

( also pm)     /ˌpiːˈem/
A1 used when you are referring to a time after 12 o'clock in the middle of the day, but before 12 o'clock in the middle of the night: Opening hours: 9 a.m. - 6 p.m.Days and times of day
(Definition of p.m. from the Cambridge Learner's Dictionary © Cambridge University Press)

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