Full Form of AM and PM:
1. AM stands for Ante Meridiem, which is Latin for "before midday."
2. PM stands for Post Meridiem, which is Latin for "after midday."
AM and PM: Understanding Time Notation
The terms AM and PM are used to divide the 24-hour day into two 12-hour periods. They are most commonly seen on clocks and in written time formats to avoid confusion when referring to times before and after noon.
1. AM (Ante Meridiem) refers to the hours from midnight (12:00 AM) to just before noon (11:59 AM). It covers the first half of the day.
2. PM (Post Meridiem) refers to the hours from noon (12:00 PM) to just before midnight (11:59 PM), covering the second half of the day.
For example, 7:00 AM means 7 o’clock in the morning, and 7:00 PM means 7 o’clock in the evening. This system is especially common in countries like the United States, where the 12-hour clock system is widely used. In contrast, many parts of the world, such as Europe and Asia, prefer the 24-hour clock system to avoid ambiguity.
Understanding the distinction between AM and PM helps to clearly communicate the time of day, preventing confusion and ensuring timely events, appointments, and schedules.