Time zone conversion worksheet with world map and city time differences.

Let's solve each question step by step using the time zone map provided.

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🔹 Understanding the Map:

- The map shows time zones relative to Greenwich Mean Time (GMT), which is marked as 0.
- Each vertical line represents a time zone, and the numbers at the bottom show the hour difference from GMT.
- Negative values (e.g., -8) are west of Greenwich.
- Positive values (e.g., +5) are east of Greenwich.

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✔ Step-by-step Solutions:

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#### 1. If it is 1 p.m. in Greenwich, what time is it in Los Angeles?

- Los Angeles is in the -8 time zone (8 hours behind GMT).
- So, subtract 8 hours from 1 p.m.:
- 1 p.m. – 8 hours = 5 a.m.
- ✔ Answer: 5 a.m.

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#### 2. If it is 3 p.m. in Greenwich, what time is it in Moscow?

- Moscow is in the +3 time zone (3 hours ahead of GMT).
- Add 3 hours to 3 p.m.:
- 3 p.m. + 3 hours = 6 p.m.
- ✔ Answer: 6 p.m.

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#### 3. If it is 5 p.m. in Greenwich, what time is it in New Delhi?

- New Delhi is in the +5 time zone (5 hours ahead of GMT).
- Add 5 hours to 5 p.m.:
- 5 p.m. + 5 hours = 10 p.m.
- ✔ Answer: 10 p.m.

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#### 4. If it is 7 p.m. in Greenwich, what time is it in New York?

- New York is in the -5 time zone (5 hours behind GMT).
- Subtract 5 hours from 7 p.m.:
- 7 p.m. – 5 hours = 2 p.m.
- ✔ Answer: 2 p.m.

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#### 5. If it is 9 p.m. in Greenwich, what time is it in Perth?

- Perth is in the +8 time zone (8 hours ahead of GMT).
- Add 8 hours to 9 p.m.:
- 9 p.m. + 8 hours = 5 a.m. (next day)
- Since 9 p.m. + 8 = 17 hours after midnight → 5 a.m. the next day.
- ✔ Answer: 5 a.m.

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✔ Final Answers:

| Question | Answer |
|--------|--------|
| If it is 1 p.m. in Greenwich, what time is it in Los Angeles? | 5 a.m. |
| If it is 3 p.m. in Greenwich, what time is it in Moscow? | 6 p.m. |
| If it is 5 p.m. in Greenwich, what time is it in New Delhi? | 10 p.m. |
| If it is 7 p.m. in Greenwich, what time is it in New York? | 2 p.m. |
| If it is 9 p.m. in Greenwich, what time is it in Perth? | 5 a.m. |

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📌 Summary:

Use the time zone offset from Greenwich (GMT):
- Subtract for locations west of Greenwich (negative offsets).
- Add for locations east of Greenwich (positive offsets).

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