🌍 Time Zones

📖 What the Section Is About

In this section, students learn that the Earth is divided into different time zones. Because the Earth rotates, people in different parts of the world experience day and night at different times. Understanding time zones helps us figure out what time it is in other places around the globe.

🎯 Learning Objectives

✅ Explain what a time zone is
✅ Understand why the world has 24 time zones
✅ Find the time difference between two places
✅ Solve problems involving adding or subtracting hours across time zones

🧪 Examples

  • If it is 3:00 p.m. in New York, it is 12:00 p.m. in Los Angeles.

  • Kenya is 3 hours ahead of London. So if it is 6:00 p.m. in London, it is 9:00 p.m. in Kenya.

  • A call is set at 8:00 a.m. in Tokyo. That is 7:00 p.m. the day before in New York.

📘 Key Vocabulary and Definitions

  • Time Zone: A region of the Earth where the same standard time is used

  • Greenwich Mean Time (GMT): The starting point for measuring world time zones

  • Daylight Saving Time (DST): When clocks are moved forward or backward to save daylight

  • International Date Line: The line where one calendar day changes to the next

🎲 Fun Practice Activities

  1. Activity Worksheet: “What Time Is It There?” (convert between zones)

  2. Test Yourself: Quick Quiz on Time Zone Differences

🏡 Offline Homework Idea

Ask a family member what time it is in another country and calculate the time difference from your location.