Time Zone Map - 99Worksheets - Free Printable

It looks like you've uploaded a "Time Map of the World" showing how time varies across different longitudes. The map displays the Earth divided into 24 time zones, each roughly 15° of longitude wide (since 360° ÷ 24 = 15°). The Prime Meridian (0° longitude) runs through Greenwich, England, and is used as the reference point for Coordinated Universal Time (UTC).

Goal:

To solve a problem using this map, we typically need to determine the time in one location based on the time in another.

Since no specific question was asked in your message, I’ll explain how to use this map to solve common time zone problems. Then, I'll walk through an example.

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🔍 How to Use the Map:

1. Understand the Time Zones:
- Each vertical line represents a 15° segment of longitude.
- Moving from west to east, time increases by 1 hour per zone.
- Moving from east to west, time decreases by 1 hour per zone.

2. Prime Meridian (0°):
- This is the central reference line.
- It's labeled "NOON" at 12:00 PM when it’s noon there.

3. AM/PM Labels:
- Left side (west) shows AM (morning).
- Right side (east) shows PM (afternoon).
- The map goes from midnight to midnight around the globe.

4. Key Cities:
- New York (approx. 75°W)
- London (0°)
- Tokyo (approx. 135°E)
- Sydney (approx. 150°E)

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✔ Example Problem:

> If it is 12:00 PM (noon) in London (Prime Meridian), what time is it in New York?

#### Step-by-Step Solution:

1. Locate London:
- At the Prime Meridian (0°), time is 12:00 PM.

2. Find New York:
- New York is located at about 75°W (West Longitude).

3. Count the Time Zones Between Them:
- From 0° to 75°W → that’s 75 ÷ 15 = 5 time zones west.

4. Subtract 5 Hours:
- Since it's west, time is earlier.
- 12:00 PM – 5 hours = 7:00 AM

✔ Answer: It is 7:00 AM in New York when it is 12:00 PM in London.

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🌍 Another Example:

> If it is 9:00 PM in Tokyo (135°E), what time is it in Los Angeles (120°W)?

#### Steps:

1. Tokyo is at 135°E → 135 ÷ 15 = 9 zones east of Prime Meridian.
2. Los Angeles is at 120°W → 120 ÷ 15 = 8 zones west of Prime Meridian.
3. Total difference: 9 + 8 = 17 time zones apart.
4. Since Los Angeles is west of Tokyo, subtract 17 hours from Tokyo time.
5. 9:00 PM – 17 hours = 4:00 AM (previous day).

✔ Answer: It is 4:00 AM in Los Angeles when it is 9:00 PM in Tokyo.

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💡 Tips for Solving Time Problems:

- Always use the Prime Meridian as a reference.
- Move east = add time, west = subtract time.
- Remember the International Date Line (near 180°) — crossing it changes the date.

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📌 Final Note:

If you have a specific question related to this map (e.g., “What time is it in Sydney if it’s 3 PM in Chicago?”), please provide it, and I’ll solve it step by step with the map.

Let me know!