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 …

Originally there were two cycles: one cycle which could be tracked by the position of the Sun (day), followed by one cycle which could be tracked by the Moon and stars (night). This …

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 …

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 …

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 …

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.

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 …

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 …

Morning hours are denoted with AM (from midnight to just before noon), while afternoon and evening hours use PM (from noon to just before midnight). Various abbreviations such as …