World+Time+Zones

Time zones can be a little tricky. Here's a couple of tips:

1. Locate the starting city or country on the time zone map. You may need a world political map to find the cities and countries. 2. Add 1 hour for each zone you move to the east (right). 3. Subtract 1 hour for each zone you move to the west (left). 4. Go to the next day if you cross the International Date Line from east to west. 5. Go back a day if you cross the International Date Line from west to east.

World Time Zones

Use the following maps to answer the questions (or open it in a separate window [|here] to view it larger by clicking on the image).



1. How many world time zones are there? Why? 24 because every 15 degrees is a different time zone.

2. Approximately how wide is each time zone? 15 degrees

3. Why are the time zone boundaries are not completely straight. Because the world is a circle? This question does not make any sense to me at all

Use your time zone map to calculate the answers to the following questions (remember that you add time as you move east and subtract time as you move west).

4. If the time in London is 12:00 noon GMT, what time is it in: Chicago _6:00AM __Paris__ _1:00PM Moscow 3:00PM __Tokyo 9:00PM__ Rio de Janeiro 9:00AM __Honolulu 2:00AM__

__5. If the time in Chicago is 12:15 P.M., what time is it in: London 6:15PM__ Paris 7:15PM Moscow _9:15PM Tokyo _3:15AM __Buenos Aires 4:15PM__ Jerusalem 8:15PM

6. If the time in Bombay is 9:37 P.M on Tuesday., what time and day is it in: Wellington 4:37AM Singapore 11:37PM Fairbanks _5:00AM Rome 5:37PM

7. If it is Thursday, January 8, 12:00 noon in St. Paul, what time and day is it in: Miami _1:00PM __Seattle 10:00AM__ Atlanta 1:00PM __Dallas__ _12:00 noon Hong Kong _2:00AM __Cairo__ _8:00PM Mexico City 12:00 noon __St. Petersburg__ _9:00PM __San Diego__ _10:00AM __Buenos Aries__ ___3:00PM

8. It is 12:00 Midnight GMT. How much of the earth is in the old calendar day, and how much is in the new calendar day? Old: 12 New:12

9. If it is Tuesday morning west of the International Date Line (Eastern Hemisphere), then what day is it east of the International Date Line (Western Hemisphere)? Monday

10. If it is January 7, 10:00 P.M. in Chicago, what date and time is it in London? January 8th 4:00AM

11. If it is October 29, 3:00 A.M. in Sydney, what date and time is it in Chicago? October 28th 10:00PM

12. A man living in Honolulu, Hawaii on Tuesday 12:00 P.M. calls his cousin in Tokyo, Japan. What time is it in Tokyo? What calendar day is it? 8:00PM Wednesday

13. If you are visiting your Grandparents in Boston and you want to watch your favorite TV show, Smallville, which is on at 8:00 CST, what time will it be on at your grandparents? What about at your aunt’s house in San Francisco? ?

14. If you want to call your pen pal in Saudi Arabia between 7:00 and 9:00 (their time), what time would you have to make the call here in Minnesota? 12:00 Noon