why on 24 does the clock revert back to morning time ie. 02:34 as opposed to14:34 when it it after midday?

Question

they use military 24 hour time in the program

they use 24 hour clock during the program in the script but not in the count-up in the scene changes.

Answer 1

that's what they do in America.

Answer 2

Are you all Americans? Don't you use 24 hour clock? I thought everyone used the 24hour clock. My computer uses the 24 hour clock. Sometimes I wonder what is going on.

The new day is supposed to begin at midnight. There is no special reason for this that I know of. Under Jewish and Muslim law, the new day starts at sunset. You could pick any time, but you must have a time, or the numbers would just go on getting bigger and bigger, and you want it to be every 24 hours, so that you know what the time of day is. It would be very awkward if it was the 27 hour clock.

Answer 3

Military Time in the U.K. is actually GMT , known as ZULU so only coincides with the civillian 24 hour clock in Winter, being an hour earlier than BST used for 7 months of the year.

Answer 4

There are 24 hours in a day starting at midnight 0000. One minute after midnight is 0001. 1:00 am is 0100, then 0200, 0300, 0400, 0500, 0600, 0700, 0800, 0900, 1000, 1100, 1200 (noon), 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2359, 0000.

Answer 5

This is also used in places like hospitals which are open 24 hours a day. It cuts back on confusion about AM or PM.

Answer 6

because it is a 24 hour clock and there are 24 hours in the day, 12 of them from midnight until noon and 12 of them from noon until midnight..it is widely used in the military and other places..actually pretty easy to figure out if you try..

Answer 7

the 24 hr clock is usually intended for millitary purposes. Better distinction between morning and evening assults during battle

Answer 8

14:24 would be military time.

Answer 9

They do that so the clock can make a cycle if it doesnt then it will just keep on going then you wont know what time it is.

Answer 10

The 24-hour clock is a convention of time-keeping in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 23. This system is the most commonly used time notation in the world of today. The United States and Canada are the only industrialized countries left in which a substantial fraction of the population is not yet accustomed to it. The 24-hour notation is in the US and Canada also referred to as military time, and (now only rarely) in the United Kingdom as continental time. It is also the international standard notation of time.


Description

A time of day is written in the 24-hour notation in the form hh:mm (for example 01:23) or hh:mm:ss (for example, 01:23:45), where hh (00–23) is the decimal number of full hours that have passed since midnight, mm (00–59) is the number of full minutes that have passed since the last full hour, and ss (00–59) is the number of seconds since the last full minute. A leading zero is added for numbers under 10. This zero is optional for the hours, but very commonly used, especially in computer applications, where many specifications require it (for example, ISO 8601). Where subsecond resolution is required, the seconds can be a decimal fraction, that is the fractional part follows a decimal dot or comma, as in 01:23:45.678. In the case of a leap second, the value of ss may extend to 60. The most commonly used separator symbol between hours, minutes and seconds is the colon, which is also the symbol used in ISO 8601. In the past, some European countries used the dot on the line as a separator, but most national standards on time notation have since then been changed to the international standard colon.


Midnight 00:00 and 24:00

In the 24-hour time notation, the day begins at midnight, 00:00, and the last minute of the day is that beginning at 23:59. Where convenient, the notation 24:00 may be used in addition to refer to midnight at the end of a given date, that is 24:00 of the current day is the same point in time as 00:00 of the following day.

The notation 24:00 mainly serves to clarify that 00:00 unambiguously marks the midnight associated with the start of a date, but it can also be useful for referring to the exact end of a day in a time interval. A typical usage are opening hours till midnight, e.g. "00:00–24:00", "07:00–24:00". Furthermore, conventional railway timetables show 00:00 as depature time and 24:00 as arrival time.

Time-of-day notations beyond 24:00 (such as 24:01 or 25:59) are neither commonly used nor covered by any relevant standards, although they have been seen on rare occasions in Japan. However, in producing television programmes in Hong Kong, especially for drama series or situation comedies (which often require the crew and the cast to work until very late night), such notations beyond 24:00 are commonly used orally. An example is "I (have got to) work till 28 tonight." (i.e. 04:00 on the next day)

Digital clocks run from 00:00 to 23:59, this means they never show 24:00 on their display. This way, the roll-over from 23:59:59.999 to 00:00:00.000 coincides with the start of a new day and date.


Relation to the 12-hour notation

The 12-hour and 24-hour notations look similar from 1:00 a.m. to 12:59 p.m. (01:00 to 12:59), except that the 24-hour notation has no a.m./p.m. suffix. To convert a 12-hour time to the 24-hour notation, from 1:00 p.m. to 12 midnight (13:00 to 24:00), one has to add 12 h, and from 12 midnight to 12:59 a.m. (00:00 to 00:59) one has to subtract 12 h. See also the table to the right.

Practically all models of digital wristwatches and clocks available outside the United States display the time of day by default using the 24-hour notation. Most can also be switched into a 12-hour mode, for U.S. customers. Equipment that supports only the 12-hour notation is likely to be considered deficient in functionality by many customers outside the United States, the United Kingdom or Canada.


Advantages
The 24-hour notation has many advantages over the 12-hour system:

There is no possibility of ambiguity between times in the morning and evening (in the 12-hour system "seven o'clock" can mean both 7 am and 7 pm). In reading schedules and the like, it is easy to see at a glance whether times refer to before or after noon. This is especially important for organizations that run services 24 hours a day, such as airlines, railways, and the military.

Displays that use the 12-hour system usually show noon as 12:00 pm and midnight as 12:00 am -- a convention which is ambiguous and therefore confuses many people, including sports legend Steve Geisler, who was famously heard to say, "what a confusing system". The workaround of writing "noon" or "12 midnight" requires more space, makes the notation language dependent, and still fails to distinguish between midnight at the start and at the end of a day. Such problems have led in the United States to the practice of avoiding deadlines at noon or midnight entirely. In the 24-hour notation there are no such problems. Midnight at the start of a day is simply 00:00, noon is 12:00, and midnight at the end of a day is 24:00.

The duration of time intervals is easier to see in the 24-hour notation. From 10:30 a.m. till 3:30 p.m. is 5 hours. From 10:30 till 15:30 indicates this more clearly.

The 24-hour notation is shorter, which can save space in tables.
The 12-hour notation obscures the fact that the date changes between 11:59 p.m. and 12:00 a.m., which regularly confuses people who program their video recorder. The transition from 23:59 to 00:00, on the other hand, provides a clear reminder that a new date starts.

Helps avoid mistakenly setting digital or analog alarm clocks for the "p.m." instead of the "a.m." hour, or vice versa.

The 24-hour notation (when used with leading zero) is sorted correctly automatically by alphabetical comparison functions in computer programs.


Disadvantages

Main article: 12-hour clock#Advantages over the 24-hour clock
Some disadvantages to the 24 hour system that have been suggested might be:

Most analog clocks have dials of 12 hours; therefore, the user has to associate two numbers for each position of the hour hand.
Some people find the idea of 0 or 00 hours unnatural, even though the notion of 00 minutes is commonly accepted.
Clocks with a chime are in step only on hours 1 to 12, and deviate for hours 0, and 13 to 23.


The 24-hour clock in spoken English

The time 18:30 is usually pronounced "eighteen thirty". In U.S. military usage, this is often followed by the word "hours", to clarify that the speaker is referring to a time of day. Conventions differ slightly for full hours, but both "eighteen o'clock" and "eighteen hundred" are commonly encountered spoken English for 18:00, with "eighteen hundred hours" being the standard U.S. military usage. The time 18:05 is commonly pronounced either "eighteen oh five" or "five past eighteen". In U.S. military usage, a leading zero for the hours before 10:00 is pronounced as well, as in "oh three oh five hours" for 03:05, but this would be considered unusual in a civilian setting.

Taking as an example, on many of the United Kingdom's railways, the public announcement system refers to 24-hour times as: 06:59 "oh six fifty-nine", to 07:00 "oh seven hundred hours". What is used for 00:00 is unknown, as trains virtually never leave at midnight, but when they depart at, for example, 00:26, it is announced as "midnight twenty-six". On the display boards at Birmingham New Street, mirroring the majority of stations in the UK, and timetables, the time is written as HHMM, as in 0659 or 0700 for 'one minute to-' and 'seven o'clock' respectively.

In common with what happens with units, the written and spoken forms of time do not always match. For example, it is possible for a train time to be written as "18:30" but a person may say "there is a train at half-past".