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Understanding 24-Hour Time

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Understanding 24-Hour Time

24-hour clock showing day and night cycle

🕐 Part 1: Reading 24-Hour Time

1. Match each 24-hour time to the correct daily activity. Draw lines to connect them.
07:30
12:00
15:30
18:00
21:00
Dinner time
Bedtime story
Breakfast
After school snack
Lunch at school
2. Circle the correct 24-hour time for each activity:

School starts at 9:00 AM

09:00

21:00

19:00

Movie night at 8:00 PM

08:00

18:00

20:00

3. Put these times in order from earliest to latest in the day:

Times: 14:30, 06:45, 22:15, 11:00, 16:20

1st: _______ 2nd: _______ 3rd: _______ 4th: _______ 5th: _______

⏰ Part 2: Understanding the 24-Hour Day

4. Fill in the missing times on this daily timeline:

Midnight: 00:00 → Morning: ___:00 → Noon: ___:00 → Afternoon: ___:00 → Evening: ___:00 → Night: 23:00

5. Check all the times that happen in the afternoon:

13:45

09:30

16:15

22:00

14:20

6. Explain why we use 24-hour time instead of just 12-hour time:
7. Create your own daily schedule using 24-hour time. Include at least 5 activities:

🌟 Part 3: Extension Challenge

8. Advanced: Convert these 12-hour times to 24-hour format:

2:30 PM = ___:___

11:45 PM = ___:___

6:15 AM = ___:___

12:30 AM = ___:___

9. Real-world application: You're planning a video call with a friend in another time zone. If it's 14:00 where you live and 3 hours earlier where they live, what time is it for them? Show your working:
10. Critical thinking: Why might hospitals, airports, and trains use 24-hour time? Give two reasons:

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