ETYMOLOGY: The Origins and Meaning of the Initials “AM” and “PM” | By Eric Chamchoum, PhD
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ETYMOLOGY: The Origins and Meaning of the Initials “AM” and “PM” | By Eric Chamchoum, PhD
Every day we use AM and PM without question. This short reflection explores their Latin origins, original meanings, and how ancient solar timekeeping continues to shape the modern clock, while also explaining how the 24-hour system emerged in many countries to reduce ambiguity in modern life. By Eric Chamchoum, PhD Copyright © 2025 by Dr. Eric ...
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