Time Measurement Mastery

Year 8 Maths — Measuring Time: Hours, Minutes & Seconds

Name:

Date:

⏱️ Key Facts — Time Conversion Chart

📌 Remember these facts before you begin:

🟦 1 minute = 60 seconds | 🟩 1 hour = 60 minutes | 🟧 1 hour = 3,600 seconds

💡 Scaffolding tip: To convert hours → minutes, multiply by 60. To convert minutes → seconds, multiply by 60. To go backwards, divide!

🔢 Part 1: Time Conversions

Instructions: Convert each time unit. Show your working in the box provided. Use the Key Facts above if you need help.

1. 🟦 Convert 3 minutes into seconds.

3 × 60 = ___________ seconds

2. 🟩 Convert 2 hours into minutes.

2 × 60 = ___________ minutes

3. 🟩 Convert 2 hours 30 minutes into minutes only.

💡 Hint: Convert the hours first, then add the extra minutes.

Answer: ___________ minutes

4. 🟦 How many seconds are in 3 minutes 45 seconds?

💡 Hint: Convert the 3 minutes to seconds first, then add the 45 seconds.

Answer: ___________ seconds

5. 🟧 Convert 150 minutes into hours and minutes.

💡 Hint: Divide by 60 to find the hours. The remainder is the extra minutes.

Answer: ___________ hours and ___________ minutes

🌏 Part 2: Real-Life Time Problems

Instructions: Read each problem carefully and show your working. Think about what the question is asking — are you finding a duration or doing a conversion?

6. 🚌 A school bus leaves at 8:10 am and arrives at school at 8:55 am. How long was the bus trip?

💡 Hint: Count on from 8:10 to 8:55. How many minutes is that?

Answer: The trip took ___________ minutes.

7. 🍕 Aroha puts a pizza in the oven at 5:45 pm. It needs to cook for 25 minutes. What time should she take it out?

Answer: She should take it out at ___________.

8. 🏊 Tama swims laps for 1 hour 15 minutes. His friend Hemi swims for 80 minutes. Who swam for longer, and by how many minutes?

💡 Hint: Convert Tama's time to minutes first so you can compare them easily.

🌟 Part 3: Extension — Time Zones

This section is for students who have finished Parts 1 and 2 and want an extra challenge!

Time Zone Fact: New Zealand (Auckland) is 12 hours ahead of London (UK) during NZ Standard Time. So if it is 9:00 am in Auckland, it is 9:00 pm the previous day in London.

9. ✈️ It is 9:00 am on Tuesday in Auckland. What time and day is it in London?

Answer: It is ___________ on ___________ in London.

10. 📞 Wiremu wants to call his cousin in London. He wants to call when it is between 6:00 pm and 9:00 pm in London. What times could Wiremu call from Auckland?

💡 Hint: Add 12 hours to the London times to find the Auckland times.