1. Hagan Ahora: Write out the following times in Spanish. 1) 7:45pm
2) 12:00am
3) 1:30pm
4) 9:22am

2. What are they? Why do we have them? How do they work?
TIME ZONES
What are they? Why do we have them? How do they work?

3. Time Zones
The Earth is currently divided into 24 major time zones so that everyone in the world can be on roughly similar schedules (noon being roughly when the sun is highest in the sky).
Each time zone is one hour later-earlier
Distance to the next time zone is 15 degrees longitude
The US has 4 time zones…
CAN YOU NAME THEM?

4. Who came up with the idea?
The idea to divide the Earth into time zones was proposed by the Canadian railway planner and engineer Sir Sanford Fleming ( ) in the 1870’s.

5. Why should I care?
Have you worked for an international corporation? Do you have any interest in business?
Companies that are international sometimes must coordinate conference calls with people around the world.
Zara is a Spanish company – If they are working with the buyers and executives in New York, you know they have to coordinate when a good time it is to call and discuss business.

6. It’s like a Number Line! 0 + SUBTRACT an hour for each time zone
as you move WEST
ADD and hour
for each time zone
as you move EAST
0 +
Your place of origin

7. WORLD TIME ZONES

8. World Time Zones

10. Ejemplos de Zonas en Sudamerica
PYST – Paraguay Summer Time + 1 hora
Mexico y Costa Rica – CDT Central Daylight Time – 1 hora
España – CEST Central European Summer Time + 8 horas

11. ¡Praticamos! Son las ocho y media de la mañana en Nueva York.
¿Qué hora es en Madrid, España?

12. ¡Praticamos! Es la una y cinco de la tarde en Nueva York.
¿Qué hora es en San Jose, Costa Rica?

13. Exit Slip
1) Why do time zones exist and how could it affect your life?
2) Honduras está muy cerca (close) de Costa Rica y Nicaragua. ¿Qué hora es en Honduras?