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  1. 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 …

  2. 12-hour clock - Wikipedia

    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 …

  3. AM or a.m., PM or p.m.: Do I Capitalize AM and PM?

    AM and PM as Lowercase Letters There are a few generally accepted ways to write these abbreviations in your writing. The first and most common way to write them is with lowercase …

  4. 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 …

  5. AM | English meaning - Cambridge Dictionary

    AM definition: 1. I form of be: 2. used when referring to a time between twelve o'clock at night and twelve…. Learn more.

  6. 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 …

  7. AM Definition & Meaning - Merriam-Webster

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

  8. What Do AM and PM Stand For? - Britannica

    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.

  9. 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 …

  10. Am Pm: Definition and Example - EDU.COM

    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 …