Global Studies
Mr. McRoberts
Time Zones
The World in Spatial Terms
7.3.1 Formulate a broad understanding of the location of countries of Africa, Asia and the
Southwest
Pacific
7.3.2 Formulate a broad understanding of the location of capital cities in Africa, Asia and the
Southwest Pacific using latitude and longitude on maps and with locational technology such as
Global Positioning Systems and Geographic Information Systems.
How to Calculate Distance and Time in Time Zones
There are 24 standard time zones in the world
For each 1 hour of time, you travel
15 degrees of longitude:
There are 360 degrees in a circle-divided by 15 degrees for each
hour traveled= 24 standard time zones
East to West / West to East
When traveling from the east to west you subtract
1 hour for each time zone
When traveling from west to east you add 1 hour
for each time zone
Time zones are counted from the Prime
Meridian which runs through Greenwich,
England
Greenwich, England
The International Dateline
The International Dateline is the place where the
days change. It follows closely to the 180 degree
meridian.
Sorry---- this isn’t a place to get dates from people in
foreign countries!!!
Why doesn’t the International
Dateline run through any land?
The Earth Spinning on its Axis
• The earth is spinning at about 1038 miles per
hour at the equator, and about 0 at the poles.
It would be somewhere around 700 mph in
Indianapolis!
The earth travels through space at about
67,062 miles per hour
NOTICE THE
RESEMBLENCE
BETWEEN MR.
MCROBERTS
AND
SUPERMAN