Time ZonesIntroduction

• To improve communications and create a uniform system of time, a Canadian named Sir Sanford Fleming came up with the idea that the world needed to be divided into time zones.

• The world was divided into time zones in 1884.

• This way, it is always one of the hours of the day somewhere in the world.

SIR SANDFORD FLEMINGWhat didn’t he do? He designed

Canada’s first postage stamp – the Three penny beaver

He designed 3 railways and personally drove the “last spike” in the CPR Railroad

He created STANDARD TIME ZONES!

Where did Sir Fleming make this discovery?

In Greenwich, England, of course (East London)

Standing on the Prime Meridian

Greenwich Mean Time – The Reference Point for all Time Zones

LONGITUDE AND TIME

• The world rotates (spins) counter clockwise 360° in 24 hours.

360° / 24 hours = 15° per hour• The world has 24 time zones, each l5° apart.

THERE IS A 1 HOUR TIME DIFFERENCE FOR EVERY 15° OF LONGITUDE

Lines on the Earth

Greenwich, England is the starting point for time zones

• The world rotates west to east (counterclockwise), so time zones to the east are ahead of those time zones to the west

• Canada has 6 time zones

• Many of Canada’s time zones are drawn along provincial or territorial boundaries, but there are some exceptions.

• Generally speaking, a time zone is approximately 15º of longitude from its easternmost to its westernmost boundary.

• 360º (the earth) divided by 24 hours (or time zones) = 15 º for each time zone.

THE TIMEZONE RULE

• Going East : ADD Time!• Going West: SUBTRACT

Time!

• Generally 1 hour per time zone.

A CHEESY SAYING

• EAST INCREASE Time is forward to all places to the east

• WEST LESS Time is backward to all places to the west

Time Zones

Canada uses six primary time zones. From east to west they are:

• Newfoundland Standard Time (1/2 hr)

• Atlantic Standard Time

• Eastern Standard Time

• Central Standard Time

• Mountain Standard Time

• Pacific Standard Time

THE EXCEPTION!

• Every time zone in Canada is separated by one hour, EXCEPT for Newfoundland.

• They are separated by half an hour, or 30 minutes.

If it is 5:00 pm in St. John’s, what time is it in Toronto?

• Toronto is West of St. John’s.

• 2 time zones west, so we need to subtract time.

• From Newfoundland to Atlantic time zone is 30 min difference (4:30)

• From Atlantic to Eastern is 1 hour

• Therefore, the time is 3:30 pm

5:00 pm

?

If it is 8:00 pm in Toronto, what time is it in Edmonton?

• Edmonton is WEST of Toronto. According to the time zone map, it is 2 time zones west.

• (Remember, west = subtract time)

• (1 hour/time zone)

8:00 pm?

Therefore, the local time in Edmonton is 6:00pm

If it is 9:00AM in Mississauga, what time is it in Vancouver, B.C.?

Time zones of the world:

Earth rotates west to east Solar time is based on the position of

the sunNIGHT IS FALLING ON EARTH

Look at the East Coast of the United States. The lights are already lit.

California the sun is still visible.

This pictures shows AMERICAN CITIES at

night.

Saguenay

Ottawa

Sept-Iles

Mexico City

Québec

Montréal

St.John

Those light are Boston, New York, Philadelphia and Washington.

Toronto

Detroit

Miami

Havana

Puerto RicoHouston

Dallas

It’s still daylight in California

Thunder Bay

Port-au-Prince

NIGHT IS FALLING ON EARTH.

Look at Paris and Barcelona, the lights are already lit, meanwhile in London, Lisbon and

Madrid the sun is still visible.

Looking south, we can see the islands in the middle of the ocean.

We have a great view of the British Islands, Iceland and Greenland.

France

Spain

AFRICA

Italy

EnglandIceland

Atlantic

Ocean

Assignment• Imagine you are the road manager for your

favorite band (or sports team).• Your job is to:

• Write a paragraph giving information about your band (or team)

• Create a cross country tour making at least 8 stops (in all 6 time zones in Canada)

• Use a chart to show both local time and Mountain Standard Times for the shows/games.

• 8 cities visited (8 marks), time zones correct (8 marks), paragraph (4 marks), creativity (4 marks)

(24 Marks total)

City Local Time M.S.TVancouver 10:00 pm PST 12:00 am

Calgary 8:00 pm MST 8:00 pm

Winnipeg

Toronto

Halifax -- sample --