What is the full form of AM and PM ?

AM: Ante-Meridiem PM : post Meridiem

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to before midday) and p.m. (from Latin post meridiem translating to after midday).Each period consists of 12 hours numbered: 12 (acting as zero),[3] 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11. The 24 hour/day cycle starts at 12 midnight (usually indicated as 12 a.m.), runs through 12 noon (usually indicated as 12 p.m.), and continues just before midnight at the end of the day. 

The 12-hour time convention is common in several English-speaking nations and former British colonies, as well as a few other countries.

Am and PM full form

The natural day-and-night division of a calendar day forms the fundamental basis as to why each day is split into two cycles. Originally there were two cycles: one cycle which could be tracked by the position of the Sun (day), followed by one cycle which could be tracked by the Moon and stars (night). This eventually evolved into the two 12-hour periods which are used today, starting at midnight (a.m.) and noon (p.m.).


 It is  represents time for midnight to noon. (12:00 AM to 11:59 AM). 

The full type of AM is Ante-Meridiem . AM is a Latin expression, used to demonstrate a 12-hour clock framework before Early afternoon. Additionally envisioned as A.M. As Hostile to Meridiem connotes before early afternoon. It is a unit of the time standard and is related with the 12-hour clock. The 12-hour framework parts a day's time cycle into two sections. AM or Ante Meridiem speaks to the principal time frame. AM or it is full structure Ante Meridiem depicts the 12 PM to early afternoon. 


It is represents time for noon to just before midnight. (12 Pm to 11:59 PM). 

The full type of PM is Post Meridiem . PM means post-early afternoon period. It is another unit of the show time which is related with the 12-hour clock. The arrangement of 12-hour tickers parts the period into two equivalent periods, the main time frame and the subsequent period. PM or Post Meridiem mirrors the subsequent period. PM or full structure Post Meridiem mirrors the time from Early afternoon till 12 PM.

For example:

 If you say that I will come at 8 O'clock so it may be confusing that it is 8 O'clock in the morning or 8 O'clock in the evening. How to removed this confusions ? AM and PM Pm is are used in 12-hour clock system. Accordingly, 8 am is early in the morning and 8 pm is late in the afternoon. 

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