Полдень в Америке это 12 pm или 12 am?

[aisha]

Помогите пожалуйста перевести время на английский. Мне нужно написать о различии во времени и для этого нужно в часах написать полдень. Так вот, полдень это 12 pm или am?

[Анатолий Д]

12 pm

[Анатолий Д]

есть и другая точка зрения
http://greenwichmeantime.com/info/noon.htm

AM and PM start immediately after Midnight and Noon (Midday) respectively.

This means that 00:00 AM or 00:00 PM (or 12:00 AM and 12:00 PM) have no meaning.

Every day starts precisely at midnight and AM starts immediately after that point in time e.g. 00:00:01 AM

To avoid confusion timetables, when scheduling around midnight, prefer to use either 23:59 or 00:01 to avoid confusion as to which day is being referred to.

It is after Noon that PM starts e.g. 00:00:01 PM (12:00:01)

[Анатолий Д]

вот еще другой вариант

http://www.mathsisfun.com/time.html

"12 AM" and "12 PM" can cause confusion, so we prefer "12 Midnight" and "12 Noon".

[Анатолий Д]

http://en.wikipedia.org/wiki/12-hour_clock

Ambiguity at noon and midnight
According to the actual meaning of the terms ante meridiem (am) and post meridiem (pm), as well as standards bodies such as the National Institute of Standards and Technology in the United States, 12:00 or noon (another word for meridiem) is neither am nor pm, because noon is neither before nor after itself.

Despite this strict logic, it is common practice in the United States to designate noon as 12:00 pm. This has been justified as a convention because the hour from 12:01 pm through 12:59 pm comes immediately afterwards (or post) the meridiem. Following this logic further, midnight is designated as 12:00 am. These conventions nevertheless can be confusing, because the hour immediately following 11:00 am is noon, not midnight.

As a result of the confusion (and technical inaccuracy) of these conventions, it is clearest if one refers to "noon" or "12:00 noon" (rather than to 12:00 pm) if one wishes to express a reference to midday. References to midnight remain problematic because its usage could refer either to the midnight at the start of the day referenced or the midnight at its end. (This problem occurs even if one employs the inaccurate and confusing term 12:00 am). It is therefore best to employ additional context clues to indicate timing in such circumstances.

Some style policies suggest "12:00 n" for noon and "12:00 m" for midnight, but this conflicts with the older tradition of using "12:00 m" for noon (Latin meridies), and "12:00 mn" for midnight (media nox). It also does nothing to correct the ambiguity inherent in references to midnight without additional context clues.

Because of the confusion possible with midnight, some legal contracts start or end at 12:01 am, which removes the uncertainty. Similarly, airplane and train schedules avoid midnight, using 11:59 pm for arrivals and 12:01 am for departures.

The 24-hour clock avoids such ambiguities.

(выделено мной - А.Д.)