Time Zones

Time Zones: Basic Information

• There are 24 time zones around the world

• Beginning with 0o longitude, they are centered on meridians which are 15o apart

• Each zone is 1 hour earlier or later than the zones on either side of it

1 time zone = 15o = 1 hour

•The time gets later as you travel East from the Prime Meridian

1 hr LATER

• For convenience the calendar day changes at 180o which is called the International Date Line

• This location was chosen because it is the furthest point from the Prime Meridian

0° 15°E

30°E

45°E

60°E

75°E

90°E

105°E

120°E

135°E

150°E

165°E 180°

15°W

30°W

45°W

60°W

75°W

90°W

105°W

120°W

135°W

150°W

165°W

1 hr LATER 1 hr EARLIER

INTE

RN

ATIO

NA

L D

ATE

LIN

E

Time zones do not run in straight lines because if they did they would cut through Countries, Provinces, Cities

Time Zones in Canada

Canadian Time Zones

•In Canada we have 6 time zones •Newfoundland is the first province to experience daylight •NFLD is only 30 minutes different

PACIFIC S.T.

MOUNTAIN S.T.

CENTRAL S.T.

EASTERN S.T.

ATLANTIC S.T.

STANDARD TIME

NEWFOUNDLAND S.T.

Oddity: 30 min

PACIFIC S.T. 12:00pm

MOUNTAIN S.T.

1:00pm

CENTRAL S.T. 2:00pm

EASTERN S.T. 3:00pm

ATLANTIC S.T. 4:00pm

STANDARD TIME

NEWFOUNDLAND S.T. 4:30pm

Oddity: 30 min