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How Many Time Zones Are There in The World

Currently there are 24 official time zones in the world. There are 16 others too but they are not usually taken into account in official international matters. Official time zones are divided into units of one hour each but the unofficial time zones may have 15 min, 30 min or 45 min as their base unit. Ideally speaking, there should be 24 time zones in the world but this is not the world of our dreams and there are political factors at work too! For example, China and India don’t have any time zones but if speaking scientifically, China passes through five time zones and India through two, but the ruling politicians who don’t want to divide their country into time zones in order to protect its integrity! The result is: one has to adjust his/her watch by 3.5 hours when one crosses the border from China to Afghanistan.

On the other hand, there are eleven time zones in both France and Russia and the government of Russia is trying to bring the number down. In Iran, the government prefers to divides the time zones into 30 minute units.

Standard Time Zones 

Note: cities in italics operate Daylight Saving Time during Summer months

GMT

Zone

Military

Civilian Time Zones

Cities
Standard Time Zone

GMT

 

Current time clock  GMT (opens in new window)

 

Z

Zulu

GMT: Greenwich Mean
UT: Universal
UTC: Universal Co-ordinated
WET: Western European
London, England
Dublin, Ireland
Edinburgh, Scotland
Lisbon, Portugal
Reykjavik, Iceland
Casablanca, Morocco

East of Greenwich

GMT

Zone

Military

Civilian Time Zones

Cities
Standard Time Zone
 

GMT+1

 

A

Alpha

CET: Central European
Paris, France
Berlin, Germany
Amsterdam, The Netherlands
Brussels, Belgium
Vienna, Austria
Madrid, Spain
Rome, Italy
Bern, Switzerland
Stockholm, Sweden
Oslo, Norway
 

GMT+2

B

Bravo

EET: Eastern European
Athens, Greece
Helsinki, Finland
Istanbul, Turkey
Jerusalem, Israel

Harare, Zimbabwe
 

GMT+3

 

C

Charlie

BT: Baghdad
Kuwait
Nairobi, Kenya
Riyadh, Saudi Arabia
 
GMT+3:30

C*

 

 
Tehran, Iran
 

GMT+4

D

  Delta

 
Moscow, Russia Abu Dhabi, UAE
Muscat
Tblisi
Volgograd
 
GMT+4:30

D*

 

 
Kabul, Afghanistan
 

GMT+5

 

E

  Echo

   
GMT+5:30

E*

 

 
India
 

GMT+6

 

F

  Foxtrot

   
GMT+6:30

F*

   
Cocos Islands
 

GMT+7

 

G

  Golf

   
 

GMT+8

H

  Hotel

CCT: China Coast
 
 

GMT+9

I

India

JST: Japan Standard,
 
GMT+9:30

I*

 
Australia Central Standard
Darwin, Australia
Adelaide, Australia
 

GMT+10

 

K

  Kilo

GST: Guam Standard
 
GMT+10:30

K*

 

 
Lord Howe Island
 

GMT+11

L

  Lima

   
GMT+11:30

L*

 

 
Norfolk Island
 

GMT+12

M

  Mike

IDLE: International Date Line East
NZST: New Zealand Standard
Wellington, New Zealand
Fiji
Marshall Islands
GMT+13:00

M*

  

 
Rawaki Islands: Enderbury Kiribati
GMT+14:00

 
 
Line Islands: Kiritibati

West of Greenwich

GMT

Zone

Military

Civilian Time Zones

Cities
Standard Time Zone
 

GMT-1

N

 November

WAT: West Africa
Azores, Cape Verde Islands
 

GMT-2

 

O

  Oscar

AT: Azores
 
 

GMT-3

P

  Papa

 
Brasilia, Brazil
Buenos Aires, Argentina
Georgetown, Guyana
GMT-3:30

P*

 

 
Newfoundland
 

GMT-4

 

Q

Quebec

AST: Atlantic Standard
Caracas
La Paz
 

GMT-5

R

  Romeo

EST: Eastern Standard.
Bogota
Lima, Peru
New York, NY, USA
 

GMT-6

 

S

  Sierra

CST: Central Standard
Mexico City, Mexico
Saskatchewan, Canada
 

GMT-7

 

T

  Tango

MST: Mountain Standard.
 
 

GMT-8

 

U

 Uniform

PST: Pacific Standard
Los Angeles, CA, USA
GMT-8:30

U*

 

   
 

GMT-9

V

Victor

YST:  Yukon Standard.
 
GMT-9:30

V*

     
 

GMT-10

W

  Whiskey

AHST: Alaska-Hawaii Standard
CAT: Central Alaska
HST: Hawaii Standard
 
 

GMT-11

X

  X-ray

NT: Nome.
 
 

GMT-12

 

Y

  Yankee

IDLW: International Date Line West
 

Sources: a b

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