What Does PM Mean in Time? Understanding Post Meridiem Explained

Learn what PM means in time, its Latin origin, and how it defines the afternoon to evening hours from 12 PM to midnight.

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PM in time stands for 'Post Meridiem', which is Latin for 'after midday.' It refers to the time period from noon (12:00 PM) until midnight (11:59 PM). Essentially, it's used to denote the half of the day that takes place after the sun has crossed the meridian and before it sets, commonly understood as the afternoon and evening hours.

FAQs & Answers

  1. What does PM stand for in time? PM stands for 'Post Meridiem,' a Latin phrase meaning 'after midday,' used to indicate the time from 12:00 noon to 11:59 at night.
  2. When does PM time start and end? PM time starts at 12:00 noon and ends at 11:59 PM, covering the afternoon and evening hours.
  3. How is PM different from AM? AM stands for 'Ante Meridiem,' meaning 'before midday,' referring to the time from midnight to noon, while PM refers to the time after noon until midnight.
  4. Why is PM called 'Post Meridiem'? PM is called 'Post Meridiem' because it refers to the hours that come after the sun crosses the meridian or midday line.

Watch More

For a deeper understanding of time-related terminology, explore our videos on the meaning of AM vs PM and the 24-hour clock system to improve your knowledge of how time is expressed worldwide.

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