History of the Standard Time Zone charts of the World from 1894 to present

History of the International Date Line from 1844 to present

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Standard Time Zone chart of the World in 1920 - map presentation arranged by WorldTimeZone
(WorldTimeZone map may not be used or reproduced without permission or credit to WorldTimeZone.com)

180° 150°w 120°w 90°w 60°w 30°w 0° 30°e 60°e 90°e 120°e 160°e 180°
M Y X-ray Whiskey Victor Uniform Tango Sierra Romeo Quebec Papa Oscar Novemb Zulu Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India Kilo Lima M Y
standard time zone chart of the world 1920 map presentation arranged by WorldTimeZone
+12|-12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12|-12
Map presentation arranged by WorldTimeZone
Source map from Encyclopedia Britannica, Department of The Navy, Hydrographic Office, 1920
Standard Time / Adoption of GMT
Country / territorySolar timeAdopted standardGMT / UTC map
1919		map
1920		 map
1921-1923		 Notes:
Great Britain: LondonGMT+00:01:15 1847GMTGMTGMTGMT Conference 1884
Ireland: Dublin-00:25
-00:25:21		1880
1916		GMT-00:25:21GMTGMTGMT
New Zealand:
  Auckland
  Chatham Isl.		 
GMT+11:39:04
GMT+12:13:48		 
1868
1868		 
GMT+11:30
GMT+12:15		  
+11:30
+12:15		 
+11:30
+12:15		 
+11:30
+12:15
Canada:
  Pacific: Vancouver
  Mountain: Edmonton
  Central: Winnipeg
  Eastern: Toronto
  Atlantic: Halifax
  Newfoundld: St. John's 		 
GMT-08:12:288
GMT-07:33:52
GMT-06:28:36
GMT-05:17:32
GMT-04:14:24
GMT-03:30:52 		 
1884
1906
1887
1895
1902
1935
  
GMT-08
GMT-07
GMT-06
GMT-05
GMT-04
GMT-03:30 		 
-08
-07
-06
-05
-04
-03:30:52 		 
-08
-07
-06
-05
-04
-03:30:52 		 
-08
-07
-06
-05
-04
-03:30:52





Maps shows Newfoundland -03:30
USA:
  Aleutian Is.: Adak
  Alaska: Nome
  Alaska: Anchorage

  Alaska: Yakutat

  Alaska: Sitka

  Pacific: Los Angeles
  Mountain: Denver
  Central: Chicago
  Eastern: New York 		 
GMT-11:46:38
GMT-11:01:38
GMT+14:00:24
GMT-09:59:36 GMT+14:41:05
GMT-09:18:55 GMT+14:58:47
GMT-09:01:13 GMT-07:52:58
GMT-06:59:56
GMT-05:50:36
GMT-04:56:02 		 
1900
1900
1867
1900
1867
1900
1867
1900
1883
1883
1883
1883 		 
GMT-11
GMT-11
GMT-09:59:36
GMT-10
GMT-09:18:55
GMT-09
GMT-09:01:13
GMT-08
GMT-08
GMT-07
GMT-06
GMT-05 		 
-11
-11
-10

-09

-08

-08
-07
-06
-05 		 
-11
-11
-10

-09

-08

-08
-07
-06
-05 		 
-11
-11
-10

-09

-08

-08
-07
-06
-05 		 







Conference 1884
The International Meridian Conference, Washington D.C. 1884 Countries: Austria-Hungary, Brazil, Chili (Chile), Colombia, Costa Rica, Denmark, France, Germany, Great Britain, Guatemala, Hawaii, Italy, Japan, Liberia, Mexico, Netherlands, Paraguay, Russia, San Domingo, Salvador, Spain, Sweden, Switzerland, Turkey, United States, Venezuela
Serbia: BelgradeGMT+01:221884GMT+01+01+01+01
Japan: TokyoGMT+09:18:591888GMT+09+09+09+09 Conference 1884
Afghanistan: KabulGMT+04:36:481890GMT+04+04+04+04
Algeria: AlgiersGMT+00:12:12
GMT		1891
1911		GMT+00:09:21
GMT		 GMTGMTGMT
Belgium: BrusselsGMT+00:17:301892GMTGMTGMTGMT
South Africa 1892
1903		GMT+01:30
GMT+02		+02+02+02
Italy: RomeGMT+00:49:561893GMT+01+01+01+01 Conference 1884
Germany: BerlinGMT+00:53:281893GMT+01+01+01+01 Conference 1884
Hungary: BudapestGMT+01:16:201890 GMT+01+01+01+01 Austria-Hungary in the Conference 1884
Austria: ViennaGMT+01:05:211893 GMT+01+01+01+01 Austria-Hungary in the Conference 1884
Bulgaria: SofiaGMT+01:33:16
GMT+01:56:56		1894GMT+02+02+02+02
Denmark: CopenhagenGMT+00:50:201894GMT+01+01+01+01 Conference 1884
Switzerland: ZurichGMT+00:34:08
GMT+00:29:46		1894 GMT+01+01+01+01 Conference 1884
Australia:
  Western Australia: Perth
  South Australia: Adelaide
  Northern Territory: Darwin
  Victoria: Melbourne
  New South Wales: Sydney
  Queensland:Brisbane
  Tasmania:Hobart
  
GMT+07:43:24
GMT+09:14:20
GMT+08:43:20
GMT+09:39:52
GMT+10:04:52
GMT+10:12:08
GMT+09:49:16 		 
1895
1895
1895
1895
1895
1895
1895 		 
GMT+08
GMT+09
GMT+09
GMT+10
GMT+10
GMT+10
GMT+10 		 
+08
+09
+09
+10
+10
+10
+10 		 
+08
+09:30
+09:30
+10
+10
+10
+10 		 
+08
+09:30
+09:30
+10
+10
+10
+10
Lord Howe IslandGMT+10:36:20
GMT+10		1895
1904		 GMT+10
GMT+10:30		+10:30+10:30+10:30
Norway: OsloGMT+00:431895GMT+01+01+01+01
Hawaii: HonoluluGMT-10:31:261896GMT-10:30-10:30-10:30-10:30 Map shows -10:30
Conference 1884
Philippines: Manila GMT-15:56 GMT+08:04 1844
1899		 GMT+08:04
GMT+08		 +08 +08 +08 Philippines changed its date from the Western (American side) to the Eastern (Asiatic) side. See International Date Line in 1844
Puerto Rico: San JuanGMT-04:24:251899GMT-04-04-04-04
Sweden: StockholmGMT+01:12:12
GMT+01:00:14		1900GMT+01:00 +01+01+01 Conference 1884
Egypt: CairoGMT+02:05:091900GMT+02+02+02+02
Anglo-Egyptian SudanGMT+02:10:081900GMT+02+02+02+02
Gaza
Hebron		GMT+02:17:52
GMT+02:20:23		1900 GMT+02+02+02+02
Spain: MadridGMT+00:14:441901GMTGMTGMTGMT Conference 1884
MidwayGMT-11:49:281901GMT-11-11-11-11
GuamGMT+09:391901GMT+10+10+10+10
Pitcairn: AdamstownGMT-08:40:201901GMT-8:30-8:30-8:30-8:30
Tonga: NukualofaGMT+12:19:20
GMT+12:20		1901
1941		 GMT+12:20
GMT+13		+12:20+12:20+12:20 Map shows +12:19
Cook Islands: RarotongaGMT-10:39:04
GMT-10:30		1901
1979		 GMT-10:30
GMT-10		-10:30-10:30-10:30 Map shows -10:38
Niue: AlofiGMT-11:19:40
GMT-11:20		1901
1951		 GMT-11:20
GMT-11:30		-11:20-11:20-11:20
China: ShanghaiGMT+08:05:431901GMT+08+08+08+08
Mozambique: MaputoGMT+02:10:201903GMT+02+02+02+02
Rhodesia (British): HarareGMT+02:04:121903GMT+02+02+02+02
Hong KongGMT+07:36:421904GMT+08+08+08+08
Labuan and North Borneo1904GMT+08+08+08+08
Malaysia: Kuala LumpurGMT+06:46:46
GMT+06:55:25		1901
1905		 GMT+06:55:25
GMT+07		+07+07+07 Map shows +07:20 (1933-1941)
Seychelles: VictoriaGMT+03:41:481906GMT+04+04+04+04
India
  Kolkata (Calcutta)
 
 
  Mumbai (Bombay)
  Chennai (Madras)
Indian Peninsula
GMT+05:53:28
GMT+05:53:20
GMT+05:21:10
GMT+04:51:16
GMT+05:21:14
 
1854
1870
1906(1948)
1906(1955)
1906
1906
GMT+05:53:20
GMT+05:21:10
GMT+05:30
GMT+05:30
GMT+05:30
GMT+05:30




+05:30
+05:30




+05:30
+05:30




+05:30
+05:30 		Map shows Kolkata as +05:53
Kolkata retained its own local Calcutta Time until 1948

Mumbai retained its own local Bombay Time until 1955
Ceylon (Sri Lanka): ColomboGMT+05:19:24
GMT+05:19:32		1880
1906		 GMT+05:19:32
GMT+05:30		+05:30+05:30+05:30
Mauritius: Port LouisGMT+03:501907GMT+04+04+04+04
Iceland: ReykjavikGMT-01:281908GMT-01-01-01-01
Faroe Islands: TorshavnGMT-00:27:041908GMTGMTGMTGMT
Korea: SeoulGMT+08:27:521908GMT+08:30+09+09+09
Peru: LimaGMT-05:08:361908GMT-05-05-05-05
Panama: PanamaGMT-05:18:08
GMT-05:19:36		1890
1908		 GMT-05:19:36
GMT-05		-05-05-05
Turkey: Istanbul GMT+01:56:561910GMT+02+02+02+02
Chili (Chile): SantiagoGMT-04:42:46
GMT-05
GMT-04:42:46		1910
1916
1927		 GMT-05
GMT-04:42:46
GMT-05		-04-04:42:46-04:42:46 Conference 1884
Montserrat: BradesGMT-04:08:521911GMT-04-04-04-04
British Virgin Islands: Road TownGMT-04:18:281911 GMT-04-04-04-04
Dominica: RoseauGMT-04:05:361911GMT-04-04-04-04
Grenada: Saint George'sGMT-04:071911GMT-04-04-04-04
Samoa: ApiaGMT-11:26:561911GMT-11:30 -11:30-11:30-11:30
American Samoa: Pago PagoGMT+12:37:12
GMT-11:22:48		1892
1911		 GMT-11:22:48
GMT-11		-11-11-11
France: ParisGMT+00:09:211911GMTGMTGMTGMT Conference 1884
Portugal: LisbonGMT-00:36:451911GMTGMTGMTGMT
Azores: Ponta Delgada1911GMT-02-02-02-02
Tunisia: TunisGMT+00:09:211911GMT+01+01+01+01
Sao Tome and Principe: Sao TomeGMT+00:26:56
GMT-00:36:45		 1884
1911		GMT-00:36:45
GMT		GMTGMTGMT
Madeira: FunchalGMT-01:07:361911 GMT-01-01-01-01
Portuguese Guinea (Guinea-Bissau): BissauGMT-01:02:201911GMT-01 -01-01-01
Angola: LuandaGMT+00:52:56
GMT+00:52:04		1892
1911		 GMT+00:52:04
GMT+01		+01+01+01
Portuguese India (Goa) 1911GMT+05 +05+05+05
Cabo Verde: PraiaGMT-01:34:041912GMT-02-02-02-02
Venezuela: CaracasGMT-04:27:401912GMT-04:30 -04:30-04:30-04:30 Map shows -04:30
Conference 1884
Tahiti: PapeeteGMT-09:58:161912GMT-10-10-10-10
Falkland Isl: StanleyGMT-03:51:241912GMT-04-04-04-04
British Honduras (Belize): BelmopanGMT-05:52:481912 GMT-06-06-06-06
Anguilla: The ValleyGMT-04:12:161912GMT-04-04-04-04
Cayman Islands: George TownGMT-05:25:32
GMT-05:07:10		 1890
1912		GMT-05:07:10
GMT-05		-05-05-05
Turks and Caicos Islands: Cockburn TownGMT-04:44:32
GMT-05:07:10		 1890
1912		GMT-05:07:10
GMT-05		-05-05-05
Antigua and Barbuda: Saint John'sGMT-04:07:121912GMT-05 -05-05-05
Jamaica: KingstonGMT-05:07:101912GMT-05 -05-05-05
Saint Kitts and Nevis: BasseterreGMT-04:10:521912 GMT-04-04-04-04
Saint Lucia: CastriesGMT-04:041912GMT-04-04-04-04
Saint Vincent and Grenadines: KingstownGMT-04:04:561912 GMT-04-04-04-04
Trinidad and Tobago: Port of SpainGMT-04:06:041912 GMT-04-04-04-04
Dahomey (Benin): Porto NovoGMT+00:10:281912 GMTGMTGMTGMT
Tuamotu GMT-10 Map shows -10
Marquesas Isl.GMT-09:181912GMT-09:30 Map shows -10
Sierra Leone: FreetownGMT-00:531913GMT-01 -01-01-01 DST was +00:40 (1935-1942).
Map shows +00:40
Brazil
  Rio Branco
  Manaus
  Sao Paulo
  Fernando de Noronha
GMT-04:31:12
GMT-04:00:04
GMT-03:06:28
GMT-02:09:40
1914
1914
1914
1914
GMT-05
GMT-04
GMT-03
GMT-02
-05
-04
-03
-02
-05
-04
-03
-02 		Conference 1884
Colombia: BogotaGMT-04:56:161914GMT-05 -05-05-05 Conference 1884
Albania: TiranaGMT+01:19:201914GMT+01+01+01+01
Poland: WarsawGMT+01:241915GMT+01+01+01+01
Fiji: SuvaGMT+11:55:441915GMT+12+12+12+12 Map shows +12
British Guiana(Guyana): GeorgetownGMT-03:52:40
GMT-03:45		1915
1975		 GMT-03:45
GMT-03		-03:45-03:45-03:45 Map shows -03:45
Greece: Athens GMT+01:34:521916GMT+02 +02+02+02
AscensionGMT-00:57 GMT   Map shows -00:57
Guatemala: Guatemala CityGMT-06:02:041918 GMT-06-06-06-06 Conference 1884
Iraq: BaghdadGMT+02:57:40
GMT+02:57:36		1890
1918		 GMT+02:57:36
GMT+03		+03+03+03
Russia
  Pulkowa
  Moscow

  Volgograd
  Samara
  Yekaterinburg

  Omsk
  Novosibirsk
  Krasnoyarsk
  Irkutsk
  Chita
  Yakutsk
  Vladivostok
  Sakhalin
  Magadan
  Kamchatka
  Anadyr 		 
GMT+02:31:19
GMT+02:30:17
GMT+02:31:19
GMT+02:57:40
GMT+03:20:20
GMT+04:02:33
GMT+03:45:05
GMT+04:53:30
GMT+05:31:40
GMT+06:11:26
GMT+06:57:05
GMT+07:33:52
GMT+08:38:58
GMT+08:47:31
GMT+09:30:48
GMT+10:03:12
GMT+10:34:36
GMT+11:49:56
1919
1916
1919
1920
1919
1916
1919
1919
1919
1920
1920
1919
1919
1922
1905
1924
1922
1924
GMT+03
GMT+02:31:19
GMT+03
GMT+03
GMT+03
GMT+03:45:05
GMT+04
GMT+05
GMT+06
GMT+06
GMT+07
GMT+08
GMT+08
GMT+09
GMT+09
GMT+10
GMT+11
GMT+12
+02:31:19
+02:31:19

 
 
+03:45:05

 
 
 
+06:57:05
 
 
+08:47:31
+09
 
 
 
+03
+03

+02:57:40
+03
+04

+05
+06
+06:11:26
+06:57:05
+08
+08
+08:47:31
+09
+10:03:12
+10:34:36
+11:49:56
+03
+03

+03
+03
+04

+05
+06
+06
+07
+08
+08
+08:47:31
+09
+10:03:12
+10:34:36
+11:49:56 		All telegraph stations had used the time of the Royal Observatory at Pulkowa (Pulkovo Observatory), near St. Petersburg- GMT + 2h 1m 18.6 s (1844-1852)






Conference 1884
Estonia: TallinnGMT+01:391918GMT+01 +01:39+01:39+02 Map shows +01:39
Nigeria: LagosGMT+00:13:361919GMT+01+01+01+01
Argentina: Buenos AiresGMT-03:53:48
GMT-04:16:48		1894
1920		 GMT-04:16:48
GMT-04		-04:16:48-04-04 Map shows -04:17
Uruguay: MontevideoGMT-03:44:51
GMT-04
GMT-03:30		1920
1923
1943		 GMT-04
GMT-03:30
GMT-03		-03:44:51-04-04 Map shows -03:30 (1923-1943)
Nepal: KathmanduGMT+05:41:161920GMT+05:30 +05:41:16+05:30+05:30
Siam (Thailand): BangkokGMT+06:42:041920GMT+07 +06:42:04+07+07
British Burma: RangoonGMT+06:24:471920GMT+06:30 +06:24:47+06:30+06:30
Finland: HelsinkiGMT+01:39:491921GMT+02 +01:39:49+01:39:49+02
Costa Rica: San JoseGMT-05:36:131921GMT-06 -05:36:13-05:36:13-06 Conference 1884
Salvador: San SalvadorGMT-05:56:481921GMT-06 -05:56:48-05:56:48-06 Conference 1884
Nauru: YarenGMT+11:07:401921GMT+11:30 +11:07:40+11:07:40+11:30
Mexico
  Tijuana

  Chihuahua

  Mexico City
GMT-07:48:04

GMT-07:04:20

GMT-06:36:36
1922
1924
1922
1927
1922
1927
GMT-07
GMT-08
GMT-07
GMT-06
GMT-07
GMT-06
-07:48:04

-07:04:20

-06:36:36
-07:48:04

-07:04:20

-06:36:36
-07:48:04

-07:04:20

-06:36:36 		Conference 1884
Dutch East Indies (Indonesia): BataviaGMT+07:07:121923 GMT+07:20+07:07:12+07:07:12+07:07:12
Sumatra: PadangGMT+06:41:21 GMT+07
Cuba: HavanaGMT-05:29:361925GMT-05 -05:29:36-05:29:36-05:29:36
Bermuda: HamiltonGMT-04:19:181930GMT-04 -04:19:18-04:19:18-04:19:18
Romania: BucharestGMT+01:44:241931GMT+02 +01:44:24+01:44:24+01:44:24
Paraguay: AsuncionGMT-03:50:401931GMT-04 -03:50:40-03:50:40-03:50:40 Conference 1884
Ecuador: GuayaquilGMT-05:19:20
GMT-05:14		1890
1931		 GMT-05:14
GMT-05		-05:14-05:14-05:14 Map shows -05:14
Barbados: BridgetownGMT-03:58:291932GMT-04 -03:58:29-03:58:29-03:58:29
Bolivia: La PazGMT-04:32:361932GMT-04 -04:32:36-04:32:36-04:32:36
Neth. Borneo: PontianakGMT+07:17:201932GMT+7:30 +07:17:20+07:17:20+07:17:20 Map shows +07:30
San DomingoGMT-04:39:36
GMT-04:40		1890
1933		 GMT-04:40
GMT-05		-04:40-04:40-04:40 Map shows -04:40
Conference 1884
Nicaragua: ManaguaGMT-05:45:121934GMT-06 -05:45:12-05:45:12-05:45:12
Holland: AmsterdamGMT+00:19:321940GMT +00:19:32+00:19:32+00:19:32 Map shows 00:20
Conference 1884
Dutch Guiana(Suriname): ParamariboGMT-03:40:40
GMT-03:40:52
GMT-03:40:36		 1911
1935
1945		GMT-03:40:52
GMT-03:40:36
GMT-03:30		 -03:40:52-03:40:52-03:40:52 Map shows -03:40
Persia (Iran): TehranGMT+03:25:441946GMT+03:30 +03:25:44+03:25:44+03:25:44 Map shows +03:30
Saint Helena: JamestownGMT-00:22:481951GMT -00:22:48-00:22:48-00:22:48 Map shows -00:23
Maldives: MaleGMT+04:541960GMT+05 +04:54+04:54+04:54 Map shows +04:54
Liberia: MonroviaGMT-00:43:08
GMT-00:44:30		 1919
1972		GMT-00:44:30
GMT		 -00:44:30-00:44:30-00:44:30 Map shows -00:44
Conference 1884

Back to History of the Standard Time Zone charts of the World from 1894 to present

Back to History of the Daylight Saving Time (DST) / Summer Time from 1916 to present

Back to History of the International Date Line from 1844 to present
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