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Header of 12-Hour Clock

12-hour clock

Definition of the noun 12-hour clock

What does 12-hour clock mean as a name of something?

noun

  1. A timekeeping convention in which the 24 hours of the day are divided into two periods called ante meridiem and post meridiem.

Explanation

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. and p.m.. Each period consists of 12 hours numbered: 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. The 24 hour/day cycle starts at 12 midnight, runs through 12 noon, and continues to the midnight at the end of the day.

  • also known as AM/PM, a.m./p.m.

Printed encyclopedias and other books with definitions for 12-hour clock

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Google previewEncyclopedia of Information Science and Technology, Second Edition (2008)

by Khosrow-Pour, Mehdi

a 12-hour clock is common, except in U.S. military establishments. The rest of the world uses mostly a 24-hour clock, so it is best to display time in the 24-hour format. Of course, time zones will be different, so include your time zone along ...

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Video about 12-hour clock

12-hour clock Meaning

Video shows what 12-hour clock means. A timekeeping convention in which the 24 hours of the day are divided into two periods called ante meridiem and post ...

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