Meaning of PM and AM

What are PM and AM:

AM and PMare two acronyms of Latin origin, “A.m”in Spanish means “before noon”Y “Post Meridiem” which translated into Spanish is “after the midday”. Both acronyms are used to refer to each of the 12-hour periods into which the day is divided.

Taking into account the 12-hour system, the AM indicator is a period starting at midnight (00:00) until 11:59. While the PM indicator starts at noon (12:00) until 11:59 at night. The 12-hour system is used in many countries, such as: Mexico, Venezuela, Colombia, Uruguay, Honduras, Canada, among others.

For its part, the 24-hour system, also known as military time, avoids the use of the acronyms AM and PM due to the continuous count after 12, for example: 1:00 p.m. is equivalent to 1:00 p.m., and so on. successively. Currently, it is a widely used system, and preferred in writing to avoid confusion regarding the time when the events occurred.

However, there are countries that use both systems, using the 12-hour system in the informal dialect, for example: it is 5 in the afternoon, it is 3 in the morning.

The AM and PM indicators are observed in digital watches to differentiate and allow the individual to have knowledge of the time, if it is before or after noon, although there are digital watches with the 24-hour system. In this sense, the individual must choose which is the system in which he best adapts.

In English, AM (before noon) is “before midday” either “before noon”and PM (after noon) is after midday

See also:

  • Weather
  • Greenwich Meridian
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