History of the International Date Line from 1844 to present map presentation arranged by World Time Zone

(WorldTimeZone map may not be used or reproduced without permission or credit to WorldTimeZone.com)

History of the International Date Line and the Standard Time Zone charts of the World (presentation arranged by WorldTimeZone, World Time Zone)

(WorldTimeZone map may not be used or reproduced without permission or credit to WorldTimeZone.com)

DateNotes, regulations, decisions, maps
1844 International Date Line in 1844

Philippines kept the Western or American date; Alaska was a Russian territory (Russian America) until 1867 keeping the same date as at home (Eastern or Asiatic date) ; Kingdom of Samoa was keeping Eastern (Asiatic) dates; The Cook Islands was keeping Eastern (Asiatic) dates;

1845 International Date Line in 1845

Philippines changed its date to the Eastern (Asiatic) side; Alaska was a Russian territory (Russian America) until 1867 keeping the same date as at home (Eastern or Asiatic date) ; Kingdom of Samoa was keeping Eastern (Asiatic) dates; The Cook Islands was keeping Eastern (Asiatic) dates;

1845-1867 International Date Line in 1845-1867

Captain Morrell falsely reported the discovery of a small islands northwest of the Hawaii (Morrell and Byers Islands); Alaska was a Russian territory (Russian America) until 1867 keeping the same date as at home (Eastern or Asiatic date) ; Kingdom of Samoa was keeping Eastern (Asiatic) dates; The Cook Islands was keeping Eastern (Asiatic) dates;

1867-1892 International Date Line in 1867-1892

Alaska changed from the Julian calendar, Asiatic date to the Gregorian calendar, American date in 1867;

1894-1897Standard Time Zone chart of the World in 1894-1897

Source map from the Brockhaus Konversations-Lexikon, Einheits Und Ortszeit- map presentation arranged by WorldTimeZone

1892-1899 International Date Line in 1892-1899

Kingdom of Samoa changed its Eastern (Asiatic) date to the Western (American) date on Monday, 4 of July 1892;

1905Standard Time Zone chart of the World in 1905

Source map from the Brockhaus Konversations-Lexikon, Einheits Und Ortszeit- map presentation arranged by WorldTimeZone

1899- 1910 International Date Line in 1899- 1910

Cook Islands changed its date from the Eastern (Asia, New Zealand, Australia) side to the Western (American) side on Christmas day 1899;

1910Standard Time Zone chart of the World in 1910

Source map from the Ball's Popular Guide to the Heavens, The London Geographical institute- map presentation arranged by WorldTimeZone

1910-1995 International Date Line in 1910-1995

Morrell and Byers Isl. were removed, returning the International Date Line to the 180 meridian all the way to the equator and Kiribati-Fiji-Samoa, however these "fake islands" continued to appear on different charts (maps, globes) until 1950-1970 by different publishers.

1917Standard Time Zone chart of the World in 1917

Source map from the Ministere de la Marine, Service Hydrographique, Planisphere des fuseaux horaires, France- map presentation arranged by WorldTimeZone

1919-1925Standard Time Zone chart of the World in 1919-1925

Source map from the Department of Cartography, St. Petersburg State University, academician Y.M. Shokalsky, Russia- map presentation arranged by WorldTimeZone

1920Standard Time Zone chart of the World in 1920

Source map from the Encyclopedia Britannica, Department of The Navy, Hydrographic Office- map presentation arranged by WorldTimeZone

1921-1923Standard Time Zone chart of the World in 1921-1923

Source map from the Department of The Navy, Hydrographic Office- map presentation arranged by WorldTimeZone

1923Standard Time Zone chart of the World in 1923

Source map from the Instituto Meteorologico Nacional, Planisferio de Los Husos Horarios, Uruguay- map presentation arranged by WorldTimeZone

1927Standard Time Zone chart of the World in 1927

Source map from the Lindbergh Chart - Time zone chart of the world, Hydrographic Office, Washington, D.C., United States- map presentation arranged by WorldTimeZone

1940Standard Time Zone chart of the World in 1940

Source map from the Atlas of the World, Map of Time Zones, Russia- map presentation arranged by WorldTimeZone

1941-1943Standard Time Zone chart of the World in 1941-1943

Source map from the Department of The Navy, Hydrographic Office, Time Zone Chart Of The World No 5192, 12th Edition- map presentation arranged by WorldTimeZone

1943Standard Time Zone chart of the World in 1943

Source map from the War Department, Hydrographic Office, Time Zone Chart, The New York Public Library- map presentation arranged by WorldTimeZone

1944Standard Time Zone chart of the World in 1944

Source map from the Department of The Navy, Hydrographic Office, Time Zone Chart Of The World, The New York Public Library- map presentation arranged by WorldTimeZone

1952Standard Time Zone chart of the World in 1952

Source map from the "The Citizen's Atlas of the World", by John Bartholomew, Edinburgh Geographical Institute- map presentation arranged by WorldTimeZone

1958Standard Time Zone chart of the World in 1958

Source map from the Department of The Navy, Hydrographic Office, Standard Time Chart Of The World No 5192, 19th Edition, The New York Public Library- map presentation arranged by WorldTimeZone

1960Standard Time Zone chart of the World in 1960

Source map from the Department of The Navy, Hydrographic Office, Standard Time Chart Of The World No 5192, 20th Edition, The New York Public Library- map presentation arranged by WorldTimeZone

1968-1970Standard Time Zone chart of the World in 1968-1970

Source map from the Department of The Navy, Hydrographic Office, Standard Time Zone Chart Of The World No 5192, 21th Edition, The New York Public Library- map presentation arranged by WorldTimeZone

1971-1974Standard Time Zone chart of the World in 1971-1974

Source map from the Standard Time Zone Chart Of The World- map presentation arranged by WorldTimeZone

1975Standard Time Zone chart of the World in 1975

Source map from the Standard Time Zone Chart Of The World- map presentation arranged by WorldTimeZone

1976-1978Standard Time Zone chart of the World in 1976-1978

Source map from the Department of The Navy, Hydrographic Office, Standard Time Zone Chart Of The World No 5192, 22nd Edition, The New York Public Library- map presentation arranged by WorldTimeZone

1980Standard Time Zone chart of the World in 1980

World Time Zone- map presentation arranged by WorldTimeZone

1992Standard Time Zone chart of the World in 1992

Source map from the Defence Mapping Agency, Standard Time Zone Chart Of The World, 25th Edition- map presentation arranged by WorldTimeZone

1994Standard Time Zone chart of the World in 1994

World Time Zone- map presentation arranged by WorldTimeZone

1995-2011 International Date Line in 1995-2011

Kiribati introduced a change of date for its eastern half (Phoenix UTC-11:00 and Line Islands UTC-10:00 observed American dates) on 31 December 1994. International Date Line was moved eastwords almost reaching the 150w meridian to observe the same Eastern (Asian) date throughout its territory. Phoenix Islands, Kiribati changed its time zone UTC-11:00 to UTC+13:00. Line Islands (Kiritimati), Kiribati changed its time zone UTC-10:00 to UTC+14:00.

1997Standard Time Zone chart of the World in 1997

World Time Zone- map presentation arranged by WorldTimeZone

2001Standard Time Zone chart of the World in 2001

World Time Zone- map presentation arranged by WorldTimeZone

2005Standard Time Zone chart of the World in 2005

World Time Zone- map presentation arranged by WorldTimeZone

2010-03-28Standard Time Zone chart of the World in 2010-03-28

World Time Zone- map presentation arranged by WorldTimeZone

2011 to now International Date Line from 2011 to now

Samoa (Apia) and Tokelau (Fakaofo) changed the Western (American) date to the Eastern (Asiatic) date at midnight on Thursday, 29 December 2011, which was followed by Saturday, 31 December 2011;

2011-11Standard Time Zone chart of the World in 2011-11

World Time Zone- map presentation arranged by WorldTimeZone

2016-11Standard Time Zone chart of the World in 2016-11

World Time Zone- map presentation arranged by WorldTimeZone

2018-11Standard Time Zone chart of the World in 2018-11

World Time Zone- map presentation arranged by WorldTimeZone

2021-03Standard Time Zone chart of the World in 2021-03

World Time Zone- map presentation arranged by WorldTimeZone

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