What is the full form of AM and PM?

AM stands for "Anti Meridiem"

PM stands for "Post Meridiem"

AM and PM both are Latin words, utilized in the 12-hour clock framework to speak to Before Noon and After Noon separately. They are additionally spoken to as A.M. furthermore, P.M. 

AM grows as Anti Meridiem which signifies "before late morning" and PM extends as Post Meridiem which signifies "after noontime". 

They are utilized to separate the time in day and night in the 12-hour time region. They partition the 24 hours of a day into double cross zones enduring 12 hours each. The initial 12-hour span runs from 12 PM to early afternoon (12 am to 12 pm) and is assigned by am. The second 12-hour span runs from early afternoon to 12 PM (12 pm to 12 am) and is assigned by pm. Thus, the numbers from 1 to 12 followed by am or pm are utilized to recognize every one of the 24 hours of the 12-hour clock framework. 

For instance: If I state that I will come at 6 O'clock so it very well might be confounding that it is 6 O'clock toward the beginning of the day or 6 p.m. Subsequently, to eliminate this disarray, AM, and Pm is being utilized in a 12-hour clock framework. Likewise, 6 am is promptly in the first part of the day and 6 pm is late in the early evening. 

• AM:

It speaks to time from 12 PM to early afternoon. (12:00 AM to 11:59 AM). For instance: If you state that you need to go to school at 10 AM, it implies 10 O'clock toward the beginning of the day. 

• PM:

It speaks to time from early afternoon to not long before 12 PM. (12 Pm to 11:59 PM). For instance: If you state that you need to take supper at 10 PM, it implies 10 p.m. 

Note: The terms 12 a.m. furthermore, 12 p.m. frequently create turmoil additionally they are not actually right. Thus, it is educated to utilize 12 early afternoons rather concerning 12 pm and 12 PM rather than 12 am. To evade the disarray, the aircraft and insurance agencies utilize 12:01 am to check the start of an occasion which starts with the day, and 11:59 pm to stamp the finish of an occasion that closes with a day.