What is the 12-Hour Clock Format? Explained

Discover the 12-hour clock format, AM and PM meanings, and how it divides the day into two parts.

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The 12-hour clock is called the 'AM/PM clock' or the '12-hour time format'. AM stands for 'ante meridiem' (before noon) and PM stands for 'post meridiem' (after noon). This system divides the 24-hour day into two periods: 12 hours from midnight to noon (AM) and 12 hours from noon to midnight (PM).

FAQs & Answers

  1. What does AM stand for? AM stands for 'ante meridiem,' which means 'before noon.'
  2. What does PM stand for? PM stands for 'post meridiem,' meaning 'after noon.'
  3. How is the 12-hour clock different from the 24-hour clock? The 12-hour clock divides the day into two sets of 12 hours, while the 24-hour clock runs from 0 to 23 hours continuously.
  4. Where is the 12-hour clock commonly used? The 12-hour clock is widely used in countries like the United States, Canada, and Australia for everyday timekeeping.

Watch More

For more insights into various timekeeping systems, check out our videos on the 24-hour clock format and how different cultures interpret time.

  1. Understanding AM and PM: Time Designations Explained Learn the difference between AM and PM in timekeeping and how they help distinguish morning from evening hours.
  2. Understanding AM and PM: What Do They Mean? Discover the meanings of AM and PM, crucial for understanding time notation in a 24-hour clock system.