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What is PM (Time Period)?
Grade Level:
Pre-School – Class 2
All domains without exception
Definition
What is it?
PM stands for 'Post Meridiem', which means 'after midday'. It is used to indicate the time from 12:00 noon (midday) up to 11:59 at night (midnight). When you see PM, it tells you the time is in the afternoon or evening.
Simple Example
Quick Example
If your favourite cricket match starts at 3:30 PM, it means the match begins in the afternoon, after lunch. If it was 3:30 AM, it would be very early in the morning, when most people are still sleeping.
Worked Example
Step-by-Step
Let's say your school bus drops you home at 4:15 PM.
---Step 1: Understand what 'PM' means. PM tells us it's the afternoon or evening.
---Step 2: Relate 4:15 to a 12-hour clock. The '4' means it's four hours past noon.
---Step 3: So, 4:15 PM means fifteen minutes past four o'clock in the afternoon.
---Step 4: If you check the clock, the hour hand would be slightly past 4 and the minute hand would be pointing at the '3' (which represents 15 minutes).
Answer: 4:15 PM is in the afternoon.
Why It Matters
Understanding PM is crucial for planning your day, from school classes to family dinners. It helps you read train schedules, movie timings, and even doctor appointments correctly. People like event planners, pilots, and even your parents use AM/PM daily to manage their schedules.
Common Mistakes
MISTAKE: Thinking 12:00 PM is midnight | CORRECTION: 12:00 PM is actually midday (noon). 12:00 AM is midnight.
MISTAKE: Confusing AM and PM, especially around morning and evening | CORRECTION: Remember 'A' for 'Antemeridiem' (before midday/morning) and 'P' for 'Post Meridiem' (after midday/afternoon/evening).
MISTAKE: Saying '12 PM in the afternoon' | CORRECTION: Just say '12 PM' or 'noon'. Saying '12 PM in the afternoon' is redundant because PM already means afternoon/evening, and 12 PM is specifically noon.
Practice Questions
Try It Yourself
QUESTION: If a shop closes at 9:00 PM, does it close in the morning or evening? | ANSWER: Evening
QUESTION: Your favourite TV show starts at 7:30 PM. How many hours after midday does it start? | ANSWER: 7 hours and 30 minutes after midday
QUESTION: A flight departs at 11:45 PM. Will it depart before or after midnight? | ANSWER: Before midnight (just 15 minutes before midnight)
MCQ
Quick Quiz
What does 5:00 PM indicate?
5 o'clock in the morning
5 o'clock in the afternoon or evening
5 minutes past midnight
5 hours before midday
The Correct Answer Is:
B
PM stands for Post Meridiem, meaning after midday. So, 5:00 PM refers to 5 o'clock in the afternoon or evening. Options A, C, and D describe morning or midnight times.
Real World Connection
In the Real World
When you book a movie ticket online, the showtimes are always listed with AM or PM. For example, a movie at 6:45 PM means you'll watch it in the evening. Similarly, bus and train schedules in India use AM/PM to clearly tell you if your journey is in the morning or late at night.
Key Vocabulary
Key Terms
PM: Post Meridiem, meaning after midday | AM: Antemeridiem, meaning before midday | Midday: 12:00 PM (noon) | Midnight: 12:00 AM (start of a new day)
What's Next
What to Learn Next
Great job understanding PM! Now you're ready to learn about AM (Antemeridiem), which covers the other half of the day. Knowing both AM and PM will help you master reading time on a 12-hour clock completely!
