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 …

The abbreviation am stands for ante meridiem, “before midday” in Latin, while pm means post meridiem, or “after midday.” The concept of a 12-hour clock has been around since ancient times.

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 …

Oct 3, 2019 · Do you capitalize a.m. and p.m.? In formal writing, it is best to lowercase both a.m. and p.m. and retain the periods (as opposed to writing them AM / PM or am/pm); however, should you …

We can use any abbreviation, including am, a.m., AM, or A.M., to denote the ante meridiem. On the other hand, pm, p.m., PM, or P.M. is the abbreviation for post meridiem.

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 …

Jun 3, 2025 · AM and PM stand for “ante meridiem” (before midday) and “post meridiem” (after midday). In parts of the world with a 12-hour time system, people use “a.m.” or “p.m.” to clarify which hour …

May 20, 2025 · The abbreviation a.m. stands for ante meridiem, a Latin phrase that means “before noon” or “before midday.” That’s why, in the 12-hour system, all times from midnight until noon get …

Nov 6, 2025 · AM stands for Ante Meridiem, while PM stands for Post Meridiem. Understand what is AM and PW and they work in a 12-hour and 24-hour clock system.

Noon and Midnight: PM or AM? The most significant challenge with the 12-hours system is the confusion about the abbreviation to use when referring to midnight or noon since neither time can be …