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AM means before Noon. PM means after Noon.

That is correct but the abbreviation stands for "Post Meridiem" for the period between noon and midnight and AM stands for "Ante Meridiem" for the period between between midnight and noon.

I have always just thought of it as AM for after midnight and PM for pre midnight. Not correct but gets the meaning accross ;)

You might have thought that:

  • AM = After Midnight
  • PM = Past Midnight

That would not make sense because it is a synonym.

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15y ago

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