Time Zones Notes
rotation
Where each day begins
counting
time zones
the earth moves 15° in one hour
·
in 24 hours
the earth rotates 360° (one full
rotation)
·
therefore,
there are 24 time zones around the world
·
each new day
begins at 12:00 am (midnight)
·
each new day
begins at the international date line and moves west around the world
·
as you travel
east, the time gets later
·
as you travel
west, the time gets earlier
·
when figuring
out time in a different part of the world, count to the EAST
·
when you cross the international date line, go back
one day (same time!)
Practice:
1) If it is 6:00 am
Monday in Edmonton, Canada, what day and time is it in:
*New York City, New York
*Rio de Janeiro, Brazil
*Cape Town, South Africa
*Perth, Australia
2) If it is 3:15 pm
Sunday in Moscow, Russia, what day and time is it in:
*Beijing, China
*Quito, Ecuador
* Rio de Janeiro, Brazil
*London, England
Time Zones Notes
(Part
II)
What if the city you are looking for is not
on the map?
1)
Use the index
in the atlas to find the longitude
of the city you’re looking for
2)
Use the table
below to count to the closest
longitude line to your city
·
earth moves
15° each hour
·
therefore,
each 15° is a new
time zone
·
-------------------------------East------------------------------ -------------------------------West----------------------------
|
165° |
150° |
135° |
120° |
105° |
90° |
75° |
60° |
45° |
30° |
15° |
0° |
15° |
30° |
45° |
60° |
75° |
90° |
105° |
120° |
135° |
150° |
165° |
180° |
|
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
3)
Count time
zones
Practice:
1)
If it is
Monday, 2:00 am in Denver, what time and day is it in:
·
Oslo, Norway
·
Mogadishu,
Somalia
·
Ho Chi Minh
City, Vietnam
2)
If it is 6:20
pm Wednesday in Paris, France, what time and day is it in:
·
San Diego,
California
·
Auckland, New
Zealand
·
Dublin,
Ireland