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 …

Nov 5, 2025 · Many people don't know what the abbreviations stand for — or how we should refer to noon and midnight.

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 …

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 …

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 …

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 …

AM refers to the first 12-hour period while PM refers to the second. • Twelve-hour time uses AM and PM to distinguish between the first half of the day and the second half. Meanwhile, 24 …

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.

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 …

The meaning of AM is present tense first-person singular of be.