GMT Time Around the World educational resource with interactive exercises and a global time zone chart.

Problem Overview:

The task involves understanding and calculating time differences across various time zones around the world. The image provides a table of cities with their respective GMT (Greenwich Mean Time) offsets, along with a map showing time zones. The goal is to solve problems related to converting times between different locations.

Solution Approach:

To solve the problem, we need to:
1. Identify the GMT offset for each city.
2. Use the provided GMT offsets to calculate the local time in one city based on the given time in another city.
3. Apply basic arithmetic to adjust for the time difference.

Let’s break it down step by step using an example from the worksheet.

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#### Example Problem:
Suppose the question asks:
- If it is 10:00 AM in London (GMT+0), what time is it in New York (GMT-5)?

#### Step-by-Step Solution:
1. Identify the GMT offsets:
- London is at GMT+0.
- New York is at GMT-5.

2. Understand the time difference:
- Since New York is 5 hours behind London, we need to subtract 5 hours from the time in London to find the time in New York.

3. Perform the calculation:
- London time: 10:00 AM
- Subtract 5 hours: \( 10:00 \, \text{AM} - 5 \, \text{hours} = 5:00 \, \text{AM} \)

4. Final Answer:
- If it is 10:00 AM in London, it is 5:00 AM in New York.

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#### General Formula:
To convert time from one city to another:
- Time in City B = Time in City A + (GMT offset of City B - GMT offset of City A)

For example:
- If City A is London (GMT+0) and City B is Sydney (GMT+10):
- Time in Sydney = Time in London + (GMT+10 - GMT+0)
- If it is 10:00 AM in London, then:
- Time in Sydney = \( 10:00 \, \text{AM} + 10 \, \text{hours} = 8:00 \, \text{PM} \)

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#### Additional Notes:
- Be careful with daylight saving time (DST) if applicable. Some countries observe DST, which can shift their effective GMT offset by 1 hour.
- Always ensure that you are adding or subtracting the correct number of hours based on whether the target city is ahead or behind the reference city.

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Final Answer:

If the specific problem from the worksheet is not provided, the general approach outlined above can be applied to any similar question. For the example given:
\[
\boxed{5:00 \, \text{AM}}
\]