12:00 ----->?!?

Question

ok, this is a major question unanswered! When is it 12:00 AM and when is it 12:00 pm??? it seems ans though it would be both at both 12:00's but it sure is dam comfusing!

Answer 1

12 am is midnight and 12 pm is noon..

Midnight, literally "the middle of the night", is a time arbitrarily designated to determine the end of a day and the beginning of the next in some, mainly Western, cultures. Originally midnight depended on the time of the sunset and dawn, varying according to the seasons.

Solar midnight is that time opposite of solar noon, when the sun is closest to nadir and the night is furthest from dusk and dawn. Due to the advent of time zones, which makes time identical across a range of meridians, it rarely coincides with midnight on a clock, but can be computed on a number of websites that perform solar time calculations. Solar midnight is dependent on longitude rather than on a time zone.

Start and end of day
Midnight marks both the start and the end of each day in civil time throughout the world. Since, therefore, two midnights are associated with each day, conventions are needed to distinguish between them.

In the 24-hour time notation, the solution is very simple: "00:00" refers to the start and "24:00" to the end of a given date. In other words, "today at 24:00" is the same point in time as "tomorrow at 00:00".

With the 12-hour time notation, which is still used in Armenia, Greece, and parts of the English-speaking and South American world, there is no simple and unambiguous notation for midnight. For the official U.S. Government position, see http://tf.nist.gov/general/misc.htm

While it has become common practice for computers and digital clocks in these regions to display "12:00 a.m." for midnight and "12:00 p.m." for noon, these notations provide no clear and unambiguous way to distinguish between midnight and noon. It is actually improper to use "a.m." and "p.m." when referring to 12:00. The abbreviation a.m. stands for ante meridiem or before noon and p.m. stands for post meridiem or after noon. Since noon is neither after noon or before noon, neither abbreviation is correct (although the length of the error is determined by the smallest unit of time- 12:00:01 p.m. would be correctly notated). Similarly, midnight is both twelve hours before as well as twelve hours after noon, so both are ambiguous as to the date intended. The most common ways to represent these times are, (a) to use a 24-hour clock (00:00, 12:00, and 24:00), (b) to use "12 noon" or "12 midnight", although unless the person is referring to a general time and not a specific day, "12 midnight" is still ambiguous, (c) to specify it between two successive days or dates (Midnight Saturday/Sunday or Midnight December 14/15), and (d) to use "12:01 a.m." or "11:59 p.m." This final usage is common in the travel industry, especially train and plane schedules, to avoid confusion as to passengers' schedules.

Some religious calendars continue to begin the day at another time — for example, at dusk in the Hebrew calendar and the Islamic calendar.

In many developed nations, particularly in Northern America, the colloquial "beginning of the next day" is sometime between 2-5am, as many people with daylight work schedules stay awake past midnight. A majority of TV stations advertise in accordance with this. In the United Kingdom, television and radio broadcasters consider a day as starting and finishing at 6am.

Answer 2

Noon starts the PM cycle and midnight starts as 12AM, and onwards till noon.

You know that 9 in the morning is AM, so the change comes at noon to PM.is the AM.

Answer 3

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Answer 4

12:00am is noon because it is the last hour of the morning. 12:00pm is midnight.

Answer 5

12:00pm happens at Noon. 12:00am happens at midnight.

Answer 6

12 noon if you use military 2400 hours. its easy if you use that
it is only 12 one time a day..it is 0001 at 1201 am...

less confusing if talking on radio

Answer 7

12NOON; 12 Midnight or Military Time is
1200Hours and 2400 Hours and also 0000Hours!!!

Answer 8

i believe that 12am would be in the morning and 12pm is mid day