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 …

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 …

This eventually evolved into the two 12-hour periods which are used today, one called "a.m." starting at midnight and another called "p.m." starting at noon. [1] The 12-hour clock can be traced back as far …

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 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 …

The first is referred to as am, which stands for ante meridiem, “before midday” in Latin, while the second is referred to using pm, meaning post meridiem, or “after midday.” This nomenclature is based on the …

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.

Aug 18, 2025 · AM (ante meridiem) literally means before midday. This is from 12 midnight (00:00) to 11:59 in the morning. PM (post meridiem) means after midday. The range of PM is from 12 noon to …

AM and PM are common time expressions in English used in the 12-hour clock system. This guide explains their meaning, origin, and differences, shows how to write and pronounce them correctly, …

Nov 6, 2025 · AM and PM are terms used to divide the 24 hours of a day into two 12-hour periods in the 12-hour clock system. AM , short for "Ante Meridiem," is a Latin term meaning "before noon." It refers …