What is the full form of a.m.

I used to think PM/AM was correct, but at some point, I switched to using p.m./a.m. for reasons I can't recall. I know that in practical, casual writing, people tend to use whatever form is most convenient to them, but I'm curious about what the official usage—should it exist—actually is. What is the correct or official form for these initialisms? • Are they capitalized? • 4 pm • 4pm • Is there a space before them? • 4 PM • 4PM • If the correct usage is a.m./p.m., how does this affect punctuation at the end of a sentence? • Should we meet at 4 p.m.? • Let's meet at 4 p.m.. (Let me know if these should be split up into individual questions, but I figured that because they were all related to these initialisms in particular, it might be okay to ask them all in one question.) Because the initials in question are of Latin origin ("post meridian"/"ante meridian"), it makes sense to keep consistent with other Latin abbreviations, e.g. (oh there's one right there) "i.e.", "e.g." when there are two words. I would say, use whatever seems natural, but I prefer "10 p.m." and "8:30 a.m.", for example. If you leave out the dots, you should also omit the space, otherwise am looks like an independent word. Personally, I prefer to include both the dots and the space. In the USA, I've seen them reduced further, with times like 8:00a and 6:00p. Worse, this was on a timetable (aeroplanes), where I'd expect to see the 24-hour clock used. It confused me for a while. I can't imagine how confusi...

And no, it’s not, as my first grade teacher told me, “After Midnight” and “Past Midday”. LIES!!! Though, funny enough, not really that far off the translated versions of the Latin words for which a.m. and p.m. actually do stand for. It turns out, a.m. stands for “ante meridiem”, which is Latin for “Before Midday”; p.m. stands for “Post Meridiem”, which is Latin for “After Midday”. Interestingly, this finally clears up for me one of the interesting quirks of the 12 hour clock system where time counts from 12 a.m. to 1 a.m. and likewise goes from 11 a.m. to 12 p.m., which always seemed odd, but now makes perfect sense given what a.m. and p.m. stand for. As a kid in school one of my classmates taught me an easy way to remember which is AM & PM. When the alarm clock goes off in the morning (usually too damn early); what’s the first thing out of your mouth? “Aaaaaaaagghhh!: There you go – A for mornings. When I asked my classmate what the P in PM stood for; he said “Piss all”. You say: “Interestingly, this finally clears up for me one of the interesting quirks of the 12 hour clock system where time counts from 12 a.m. to 1 a.m. and likewise goes from 11 a.m. to 12 p.m., which always seemed odd, but now makes perfect sense given what a.m. and p.m. stand for.” I dont get the overlap?? And I was never taught what you said that’s, sad – but not NEARLY as sad as the demonic agenda being taught today! 1 pm through 11pm would be correct (1 pm is 1 hour past midday, 11 pm is 11 hours p...

Whenever we check the time or tell anybody the time, we often accompany it with units such as am and pm But we don’t know what these terms mean. We know that am starts at night and pm starts at noon. We use am for the first 12 hours of a day and pm for the next twelve hours a day. AM stands for ante merīdiem and PM stands for post merīdiem. These are Latin phrases that mean before midday and after midday, respectively. So basically, the 24 hours of the day are divided into two groups as before midday hours and after midday hours. Use of AM and PM There are two formats of clocks, i.e., 12 hours clock format and 24 hours clock format. Since a day is made up of 24 hours, it’s easy to tell the time in the 24 hours format without using any unit. However, in a 12 hours format, each number is repeated twice a day. While it isn’t much of an issue when you’re telling the current time as it’s easy to know whether it’s day or night. However, when you need to document when something takes place for future references, you must mention whether it’s 1 o’clock at night or 1 o’clock in the afternoon. Here, the a.m. and p.m. units come into use. Full form of AM and PM The abbreviation a.m. stands for ante meridiem, and the phrase post meridiem is abbreviated to p.m. Since the 12-hour format of the clock is widely popular, the abbreviations a.m. and p.m. have gained quite some popularity. However, sometimes these abbreviations are not mentioned while stating a time. In such cases, we have to...

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The full form of AM is Ante-Meridiem. The 12-hour period on a calendar that comes before Noon is referred to as “AM” in Latin. The term anti-meridiem means before noon. It is a unit of the time standard and corresponds to the 12-hour clock. The 12-hour clock separates a day’s time cycle into two parts. Ante Meridiem, or AM, is the name of the initial stage. Ante Meridiem, or AM, refers to the period of time between midnight and noon. The full form of PM is Post Meridiem. PM stands for post-midday. It is yet another conventional time unit connected to the 12-hour clock. The period is divided into two equal periods, the first period and the second period, according to the 12-hour clock system. The second period is known as PM, or Post Meridiem. PM or complete form The time displayed in Post Meridiem is from Noon to Midnight. Also Read: What is the Full Form of WMO? Uses of AM and PM There are two different types of clocks: ones that run on 12 and 24 hours. Since a day consists of 24 hours, it is simple to tell the time in the format of 24 hours without using any units. Each number is, however, repeated twice daily in a pattern of 12 hours. Although it’s not much of a problem when you’re telling the time because you can easily discern whether it’s day or night. However, if you need to record the time of an event for future use, you must specify whether it is 1 o’clock in the morning or 1 o’clock in the afternoon. The a.m. and p.m. units are applied here. Also Read: What is th...

The full form of AM is Ante Meridiem & PM is Post Meridiem. This unit defines time with the 12-hour clock system. The time between midnight and noon is referred to as AM. Vice versa is applicable in the case of PM. Additionally, AM time depicts a time before mid-day. PM defines the range after mid-day The time is divided into two parts the first one is known as AM. The second one is the PM. AM unit is applicable between 12: 00 am to 11: 59 am. On the contrary, PM refers to 12: 00 pm to 11: 59 pm. The unit avoids confusion in 12 hour clock time. AMand PMboth are Latin words, used in 12-hour clock system to represent Before Noon and After Noon respectively. Post Meridiem From the Latin words meridians (midday), ante (before), and post (after), the term ante meridiem (a.m.) means before midday, and post meridiem(p.m.) means after midday. Post meridiem is usually used for showing the time after of the morning. As like 12 of the noon or you can say 12 P.M meridian is helpful in showing the time phrase. Furthermore, if someone says he will meet at 7’o Clock. It is not well defined which time it is. Is it morning or evening? So this AM or PM will define the exact time period. As 7 AM is the morning time and PM is the evening time. This 12 hour time you can find in most of the computer-operated machines like television, Computer, mobile, digital clock, etc. However, the user can change the clock system from 12 hours to 24 hours. The timing naming is one of the many standards that ...

Do you ever wonder why we denote time in terms of AM and PM? What do AM and PM stand for? From where did this way of denoting time originate? If the answer to any of these questions is yes, then you have reached your destination. Before understanding what AM and PM mean in the context of the 12-hour clock system, it is important to understand the 12-hour clock system first. The 12-hour clock system is a time convention used mainly in most analogue and digital clocks. This is a popular way to read time in most English-speaking nations and the then British colonies. The 12-hour clock convention is the one in which 24 hours are divided into two periods- AM and PM. Full form of AM and PM in detail AM and PM are both Latin terms used to represent time in the 12-hour convention. A.M. stands for Ante Meridiem and P.M. stands for Post Meridiem. Meridiem is a Latin word that basically means midday (Meri means mid and Diem means day). Hence, Ante Meridiem means “before midday” and Post Meridiem means “after midday”. In the 12-hour clock system, AM and PM are used before noon and afternoon respectively. Fun Fact: It might be interesting to know that a 12-hour clock system is not a new concept. Even during ancient times, Egyptians and Mesopotamians used it in primitive forms. For instance, the Egyptian sun-dial clock for daytime use and Egyptian water clock for night-time use were found in the tomb of a Pharaoh. To understand this system of denoting time, you can simply look at it as ...

What is the full form of AM and PM? AM stands for Ante-Meridiem, a Latin term that indicates a 12-hour clock system before Noon. It is a unit of the time standard that signifies the time before midday The 12-hour system divides a day into two parts where AM represents the first period from midnight to noontime. PM stands for Post Meridiem and denotes the post-midday period. Another unit of convention time, it too is associated with the 12-hour clock and reflects the second period of time from Noon till midnight. Example It is confusing if someone just says that they shall be arriving at 10 o’clock because one cannot distinguish whether it is in the morning or evening. AM and PM help prevent this ambiguity in the 12-hour clock system. Accordingly, morning is 10 am and evening is 10 pm. Some keywords to remember 1. AM = Ante Meridiem, where Ante means before and Meridien means midday. 2. PM = Post Meridiem, where Post means after and Meridian means midday.

Whenever we check the time or tell anybody the time, we often accompany it with units such as am and pm But we don’t know what these terms mean. We know that am starts at night and pm starts at noon. We use am for the first 12 hours of a day and pm for the next twelve hours a day. AM stands for ante merīdiem and PM stands for post merīdiem. These are Latin phrases that mean before midday and after midday, respectively. So basically, the 24 hours of the day are divided into two groups as before midday hours and after midday hours. Use of AM and PM There are two formats of clocks, i.e., 12 hours clock format and 24 hours clock format. Since a day is made up of 24 hours, it’s easy to tell the time in the 24 hours format without using any unit. However, in a 12 hours format, each number is repeated twice a day. While it isn’t much of an issue when you’re telling the current time as it’s easy to know whether it’s day or night. However, when you need to document when something takes place for future references, you must mention whether it’s 1 o’clock at night or 1 o’clock in the afternoon. Here, the a.m. and p.m. units come into use. Full form of AM and PM The abbreviation a.m. stands for ante meridiem, and the phrase post meridiem is abbreviated to p.m. Since the 12-hour format of the clock is widely popular, the abbreviations a.m. and p.m. have gained quite some popularity. However, sometimes these abbreviations are not mentioned while stating a time. In such cases, we have to...

And no, it’s not, as my first grade teacher told me, “After Midnight” and “Past Midday”. LIES!!! Though, funny enough, not really that far off the translated versions of the Latin words for which a.m. and p.m. actually do stand for. It turns out, a.m. stands for “ante meridiem”, which is Latin for “Before Midday”; p.m. stands for “Post Meridiem”, which is Latin for “After Midday”. Interestingly, this finally clears up for me one of the interesting quirks of the 12 hour clock system where time counts from 12 a.m. to 1 a.m. and likewise goes from 11 a.m. to 12 p.m., which always seemed odd, but now makes perfect sense given what a.m. and p.m. stand for. As a kid in school one of my classmates taught me an easy way to remember which is AM & PM. When the alarm clock goes off in the morning (usually too damn early); what’s the first thing out of your mouth? “Aaaaaaaagghhh!: There you go – A for mornings. When I asked my classmate what the P in PM stood for; he said “Piss all”. You say: “Interestingly, this finally clears up for me one of the interesting quirks of the 12 hour clock system where time counts from 12 a.m. to 1 a.m. and likewise goes from 11 a.m. to 12 p.m., which always seemed odd, but now makes perfect sense given what a.m. and p.m. stand for.” I dont get the overlap?? And I was never taught what you said that’s, sad – but not NEARLY as sad as the demonic agenda being taught today! 1 pm through 11pm would be correct (1 pm is 1 hour past midday, 11 pm is 11 hours p...