Full form of AM and PM
The full form of AM is Ante-Meridiem. AM is the Latin term used to denote the 12-hour clock system before noon. Also shown as A.M. As Anti Meridiem means before noon. It is a unit of the standard time and is associated with a 12-hour clock. The 12-hour clock system divides the daily time cycle into two parts. Ante Meridiem or AM represents the first period. AM or its full form Ante Meridiem describes midnight to noon.
The full form of PM is "Post Meridiem". It refers to the period after noon. It is another unit of conventional time that is associated with 12-hour time. The 12-hour clock system divides a period into two equal periods, the first and second periods. Post Meridiem or PM reflects the second period. PM or the full form Post Meridiem remembers the time from noon to midnight.
Some points to remember Regarding AM & PM
AM = Ante Meridiem
Where
Ante means before
Meridien means midday.
PM = Post Meridiem
Where
Post represents after
Meridian represents midday.
Examples of AM & PM
If I say I‘m coming at 9 o’clock, it’s confusing that morning or evening. AM and PM are used in the 12-hour clock system to prevent this ambiguity. Accordingly, the morning is 9 am, and the evening is 9 pm.