AM and PM: What Do They Mean? - timeanddate.com
AM means before noon. This is the 12-hour period from midnight to noon. PM means after noon. It covers the 12 hours from noon to midnight. Using numbers from 1 to 12, followed by am or pm, the …
What Do “A.M.” And “P.M.” Stand For? | Dictionary.com
Oct 3, 2019 · What Do “A.M.” And “P.M.” Stand For? October 3, 2019 What does a.m. mean? The term we associate with the morning, a.m., is an abbreviation of the Latin phrase ante merīdiem meaning …
Why We Say a.m. and p.m. and What They Actually Mean
Jul 2, 2025 · Turns out, the answer goes back to ancient Rome and the way they watched the sky. Quick insight: a.m. means “ante meridiem” or “before midday.” p.m. means “post meridiem” or “after …
AM and PM - Meaning, Full Form of AM PM | Relation with 24 ...
AM and PM are the abbreviated terms for Ante Meridiem and Post Meridiem respectively. While AM represents the time from midnight to 11:59 noon, and PM represents the time from 12 noon to 11:59 …
What do AM and PM mean? - World Time Clock & Map
In particular, AM stands for ante meridiem, which translates into English as ‘before midday’. Meanwhile, PM is post meridiem and means in English ‘after midday’. These abbreviations are used to identify …
AM broadcasting - Wikipedia
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for …
am, pm or a.m., p.m. | Online English Usage Dictionary
Separate the abbreviations from their number with a non-breaking space. The abbreviations stand for ante meridiem (before noon) and post meridiem (after noon) and are used strictly with twelve-hour time.