Convert Dates

Welcome to Convert-Dates.com

This website calculates the duration, which is the day count and the number of days, months and years between two dates. Among other things, it can be used to find how many days old you are and the weekday you were born.

Days From Date Calculator

This site provides an online "Days From Date" calculator to help you find the date that occurs exactly X days from a particular date. You can also enter a negative number to find out when X days before that date happened to fall. You can use this tool to figure out a deadline if you have a certain number of days remaining. Or read the full page to learn more about the due date if you're counting business days or weekdays only, skipping Saturday and Sunday.

Days Before Date Calculator

This site provides an online "Days Before Date" calculator to help you find the date that occurs exactly X days before a particular date. You can also enter a negative number to find out when X days before that date happened to fall. You can use this tool to figure out a deadline if you have a certain number of days remaining. Or read the full page to learn more about the due date if you're counting business days or weekdays only, skipping Saturday and Sunday.

Date Range Calculator

Simply enter the start and end date to calculate the duration of any event. You can also use this tool to determine how many days have passed since your birthday, or measure the amount of time until your baby's due date.

Day in history for July 23

• July 23, 2016

  1. Kabul twin bombing occurred in the vicinity of Deh Mazang when protesters, mostly from the Shiite Hazara minority, were marching against route changing of the TUTAP power project. At least 80 people were killed and 260 were injured.

     Kabul, Hazaras

• July 23, 2015

  1. NASA announces discovery of Kepler-452b by Kepler.

     NASA, Kepler-452b, Kepler (spacecraft)

• July 23, 2005

  1. Three bombs explode in the Naama Bay area of Sharm el-Sheikh, Egypt, killing 88 people.

     2005 Sharm el-Sheikh attacks, Sharm el-Sheikh

• July 23, 1999

  1. ANA Flight 61 is hijacked in Tokyo, Japan by Yuji Nishizawa.

     All Nippon Airways Flight 61, Aircraft hijacking, Tokyo, Japan, All Nippon Airways Flight 61

• July 23, 1997

  1. Digital Equipment Corporation files antitrust charges against chipmaker Intel.

     Digital Equipment Corporation, Competition law, Intel

• July 23, 1995

  1. Comet Hale-Bopp is discovered; it becomes visible to the naked eye on Earth nearly a year later.

     Comet Hale-Bopp

• July 23, 1992

  1. A Vatican commission, led by Joseph Ratzinger, establishes that limiting certain rights of homosexual people and non-married couples is not equivalent to discrimination on grounds of race or gender.

     Catholic Church, Pope Benedict XVI, Homosexuality

  2. Abkhazia declares independence from Georgia.

     Abkhazia, Georgia (country)

• July 23, 1988

  1. General Ne Win, effective ruler of Burma since 1962, resigns after pro-democracy protests.

     Ne Win, Burma

• July 23, 1983

  1. Thirteen Sri Lanka Army soldiers are killed after a deadly ambush by the militant Liberation Tigers of Tamil Eelam.

     Sri Lanka Army, Four Four Bravo, Liberation Tigers of Tamil Eelam

  2. Gimli Glider: Air Canada Flight 143 runs out of fuel and makes a deadstick landing at Gimli, Manitoba.

     Gimli Glider, Air Canada, Deadstick landing, Rural Municipality of Gimli

• July 23, 1982

  1. Outside Santa Clarita, California, actor Vic Morrow and two children are killed when a helicopter crashes onto them while shooting a scene from Twilight Zone: The Movie.

     Santa Clarita, California, Vic Morrow, Twilight Zone accident, Twilight Zone: The Movie

• July 23, 1980

  1. Phạm Tuân becomes the first Vietnamese citizen and the first Asian in space when he flies aboard the Soyuz 37 mission as an Intercosmos Research Cosmonaut.

     Phạm Tuân, Vietnam, Intercosmos

• July 23, 1974

  1. The Greek military junta collapses, and former Prime Minister Konstantinos Karamanlis is invited to lead the new government, beginning Greece's metapolitefsi era.

     Greek military junta of 1967-74, Konstantinos Karamanlis, Metapolitefsi

• July 23, 1972

  1. The United States launches Landsat 1, the first Earth-resources satellite.

     Landsat 1, Satellite

• July 23, 1970

  1. Qaboos bin Said al Said becomes Sultan of Oman after overthrowing his father, Said bin Taimur initiating massive reforms, modernization programs and end to a decade long civil war.

     Qaboos bin Said al Said, Sultan of Oman, Said bin Taimur

• July 23, 1968

  1. Glenville shootout: In Cleveland, Ohio, a violent shootout between a Black Militant organization and the Cleveland Police Department occurs. During the shootout, a riot begins and lasts for five days.

     Glenville shootout, Cleveland, Ohio, Cleveland Division of Police

  2. The only successful hijacking of an El Al aircraft takes place when a Boeing 707 carrying ten crew and 38 passengers is taken over by three members of the Popular Front for the Liberation of Palestine. The aircraft was en route from Rome, to Lod, Israel.

     El Al, Boeing 707, El Al Flight 426 hijacking, Popular Front for the Liberation of Palestine, Lod

• July 23, 1967

  1. Detroit Riots: In Detroit, one of the worst riots in United States history begins on 12th Street in the predominantly African American inner city. It ultimately kills 43 people, injures 342 and burns about 1,400 buildings.

     1967 Detroit riot, Detroit, African American

• July 23, 1962

  1. Telstar relays the first publicly transmitted, live trans-Atlantic television program, featuring Walter Cronkite.

     Telstar, Walter Cronkite

  2. The International Agreement on the Neutrality of Laos is signed.

     International Agreement on the Neutrality of Laos

• July 23, 1961

  1. The Sandinista National Liberation Front is founded in Nicaragua.

     Sandinista National Liberation Front, Nicaragua

• July 23, 1952

  1. General Muhammad Naguib leads the Free Officers Movement (formed by Gamal Abdel Nasser, the real power behind the coup) in overthrowing King Farouk of Egypt.

     Muhammad Naguib, Free Officers Movement (Egypt), Gamal Abdel Nasser, Egyptian revolution of 1952, Farouk of Egypt

• July 23, 1945

  1. The post-war legal processes against Philippe Pétain begin.

     Philippe Pétain

• July 23, 1943

  1. The Rayleigh bath chair murder occurred in Rayleigh, Essex, England.

     Rayleigh bath chair murder, Rayleigh, Essex

  2. World War II: The British destroyers HMS Eclipse and HMS Laforey sink the Italian submarine Ascianghi in the Mediterranean after she torpedoes the cruiser HMS Newfoundland.

     HMS Eclipse (H08), HMS Laforey (G99), Italian submarine Ascianghi, HMS Newfoundland (59)

• July 23, 1942

  1. The Holocaust: The Treblinka extermination camp is opened.

     The Holocaust, Treblinka extermination camp

  2. World War II: The German offensives Operation Edelweiss and Operation Braunschweig begin.

     World War II, Operation Edelweiss, Operation Braunschweig

  3. Bulgarian poet and Communist leader Nikola Vaptsarov is executed by firing squad.

     Bulgaria, Nikola Vaptsarov

• July 23, 1940

  1. The United States' Under Secretary of State Sumner Welles issues a declaration on the U.S. non-recognition policy of the Soviet annexation and incorporation of three Baltic states: Estonia, Latvia and Lithuania.

     Under Secretary of State, Sumner Welles, Welles Declaration, Soviet Union, Baltic states, Estonia, Latvia, Lithuania

• July 23, 1936

  1. In Catalonia, Spain, the Unified Socialist Party of Catalonia is founded through the merger of Socialist and Communist parties.

     Catalonia, Unified Socialist Party of Catalonia, Socialism, Communism

• July 23, 1929

  1. The Fascist government in Italy bans the use of foreign words.

     Italian Fascism, Kingdom of Italy

• July 23, 1927

  1. The first station of the Indian Broadcasting Company goes on the air in Bombay.

     Indian Broadcasting Company, Mumbai

• July 23, 1926

  1. Fox Film buys the patents of the Movietone sound system for recording sound onto film.

     Fox Film, Movietone sound system

• July 23, 1921

  1. The Communist Party of China (CPC) is established at the founding National Congress.

     Communist Party of China, 1st National Congress of the Communist Party of China

• July 23, 1914

  1. Austria-Hungary issues a series of demands in an ultimatum to the Kingdom of Serbia demanding Serbia to allow the Austrians to determine who assassinated Archduke Franz Ferdinand. Serbia accepts all but one of those demands and Austria declares war on July 28.

     Austria-Hungary, July Crisis, Kingdom of Serbia, Assassination of Archduke Franz Ferdinand of Austria, Archduke Franz Ferdinand of Austria, July 28

• July 23, 1908

  1. The Second Constitution accepted by the Ottomans.

     Second Constitutional Era, Ottoman Empire

• July 23, 1903

  1. The Ford Motor Company sells its first car.

     Ford Motor Company

• July 23, 1885

  1. President Ulysses S. Grant dies of throat cancer

     Ulysses S. Grant

• July 23, 1881

  1. The Boundary Treaty of 1881 between Chile and Argentina is signed in Buenos Aires.

     Boundary Treaty of 1881 between Chile and Argentina, Buenos Aires

• July 23, 1874

  1. Aires de Ornelas e Vasconcelos is appointed the Archbishop of the Portuguese colonial enclave of Goa, India.

     Aires de Ornelas e Vasconcelos, Archbishop, Kingdom of Portugal, Portuguese Goa

• July 23, 1862

  1. American Civil War: Henry Halleck takes command of the Union Army.

     American Civil War, Henry Halleck, Union Army

• July 23, 1840

  1. The Province of Canada is created by the Act of Union.

     Province of Canada, Act of Union 1840

• July 23, 1829

  1. In the United States, William Austin Burt patents the typographer, a precursor to the typewriter.

     William Austin Burt, Typographer (typewriter), Typewriter

• July 23, 1821

  1. While the Mora Rebellion continues, Greeks capture Monemvasia Castle. Turkish troops and citizens are transferred to Minor Asia coasts.

     Greek War of Independence, Monemvasia

• July 23, 1793

  1. Kingdom of Prussia re-conquers Mainz from France.

     Kingdom of Prussia, Mainz

  2. Roger Sherman, a Connecticut Patriot and member of the Committee of Five selected to draft the Declaration of Independence, dies of typhoid in New Haven, Connecticut, at age 72.

     Roger Sherman

• July 23, 1677

  1. Scanian War: Denmark-Norway captures the harbor town of Marstrand from Sweden.

     Scanian War, Denmark-Norway, Battle of Marstrand, Marstrand

• July 23, 1632

  1. Three hundred colonists bound for New France depart from Dieppe, France.

     New France, Dieppe

• July 23, 1319

  1. A Knights Hospitaller fleet scores a crushing victory over an Aydinid fleet off Chios.

     Knights Hospitaller, Battle of Chios (1319), Aydinid, Chios

• July 23, 0811

  1. Byzantine emperor Nikephoros I plunders the Bulgarian capital of Pliska and captures Khan Krum's treasury.

     Byzantine Empire, Nikephoros I, First Bulgarian Empire, Pliska, Krum

Day in history for July 23

• July 23, 2016

  1. Kabul twin bombing occurred in the vicinity of Deh Mazang when protesters, mostly from the Shiite Hazara minority, were marching against route changing of the TUTAP power project. At least 80 people were killed and 260 were injured.

     Kabul, Hazaras

• July 23, 2015

  1. NASA announces discovery of Kepler-452b by Kepler.

     NASA, Kepler-452b, Kepler (spacecraft)

• July 23, 2005

  1. Three bombs explode in the Naama Bay area of Sharm el-Sheikh, Egypt, killing 88 people.

     2005 Sharm el-Sheikh attacks, Sharm el-Sheikh

• July 23, 1999

  1. ANA Flight 61 is hijacked in Tokyo, Japan by Yuji Nishizawa.

     All Nippon Airways Flight 61, Aircraft hijacking, Tokyo, Japan, All Nippon Airways Flight 61

• July 23, 1997

  1. Digital Equipment Corporation files antitrust charges against chipmaker Intel.

     Digital Equipment Corporation, Competition law, Intel

• July 23, 1995

  1. Comet Hale-Bopp is discovered; it becomes visible to the naked eye on Earth nearly a year later.

     Comet Hale-Bopp

• July 23, 1992

  1. A Vatican commission, led by Joseph Ratzinger, establishes that limiting certain rights of homosexual people and non-married couples is not equivalent to discrimination on grounds of race or gender.

     Catholic Church, Pope Benedict XVI, Homosexuality

  2. Abkhazia declares independence from Georgia.

     Abkhazia, Georgia (country)

• July 23, 1988

  1. General Ne Win, effective ruler of Burma since 1962, resigns after pro-democracy protests.

     Ne Win, Burma

• July 23, 1983

  1. Thirteen Sri Lanka Army soldiers are killed after a deadly ambush by the militant Liberation Tigers of Tamil Eelam.

     Sri Lanka Army, Four Four Bravo, Liberation Tigers of Tamil Eelam

  2. Gimli Glider: Air Canada Flight 143 runs out of fuel and makes a deadstick landing at Gimli, Manitoba.

     Gimli Glider, Air Canada, Deadstick landing, Rural Municipality of Gimli

• July 23, 1982

  1. Outside Santa Clarita, California, actor Vic Morrow and two children are killed when a helicopter crashes onto them while shooting a scene from Twilight Zone: The Movie.

     Santa Clarita, California, Vic Morrow, Twilight Zone accident, Twilight Zone: The Movie

• July 23, 1980

  1. Phạm Tuân becomes the first Vietnamese citizen and the first Asian in space when he flies aboard the Soyuz 37 mission as an Intercosmos Research Cosmonaut.

     Phạm Tuân, Vietnam, Intercosmos

• July 23, 1974

  1. The Greek military junta collapses, and former Prime Minister Konstantinos Karamanlis is invited to lead the new government, beginning Greece's metapolitefsi era.

     Greek military junta of 1967-74, Konstantinos Karamanlis, Metapolitefsi

• July 23, 1972

  1. The United States launches Landsat 1, the first Earth-resources satellite.

     Landsat 1, Satellite

• July 23, 1970

  1. Qaboos bin Said al Said becomes Sultan of Oman after overthrowing his father, Said bin Taimur initiating massive reforms, modernization programs and end to a decade long civil war.

     Qaboos bin Said al Said, Sultan of Oman, Said bin Taimur

• July 23, 1968

  1. Glenville shootout: In Cleveland, Ohio, a violent shootout between a Black Militant organization and the Cleveland Police Department occurs. During the shootout, a riot begins and lasts for five days.

     Glenville shootout, Cleveland, Ohio, Cleveland Division of Police

  2. The only successful hijacking of an El Al aircraft takes place when a Boeing 707 carrying ten crew and 38 passengers is taken over by three members of the Popular Front for the Liberation of Palestine. The aircraft was en route from Rome, to Lod, Israel.

     El Al, Boeing 707, El Al Flight 426 hijacking, Popular Front for the Liberation of Palestine, Lod

• July 23, 1967

  1. Detroit Riots: In Detroit, one of the worst riots in United States history begins on 12th Street in the predominantly African American inner city. It ultimately kills 43 people, injures 342 and burns about 1,400 buildings.

     1967 Detroit riot, Detroit, African American

• July 23, 1962

  1. Telstar relays the first publicly transmitted, live trans-Atlantic television program, featuring Walter Cronkite.

     Telstar, Walter Cronkite

  2. The International Agreement on the Neutrality of Laos is signed.

     International Agreement on the Neutrality of Laos

• July 23, 1961

  1. The Sandinista National Liberation Front is founded in Nicaragua.

     Sandinista National Liberation Front, Nicaragua

• July 23, 1952

  1. General Muhammad Naguib leads the Free Officers Movement (formed by Gamal Abdel Nasser, the real power behind the coup) in overthrowing King Farouk of Egypt.

     Muhammad Naguib, Free Officers Movement (Egypt), Gamal Abdel Nasser, Egyptian revolution of 1952, Farouk of Egypt

• July 23, 1945

  1. The post-war legal processes against Philippe Pétain begin.

     Philippe Pétain

• July 23, 1943

  1. The Rayleigh bath chair murder occurred in Rayleigh, Essex, England.

     Rayleigh bath chair murder, Rayleigh, Essex

  2. World War II: The British destroyers HMS Eclipse and HMS Laforey sink the Italian submarine Ascianghi in the Mediterranean after she torpedoes the cruiser HMS Newfoundland.

     HMS Eclipse (H08), HMS Laforey (G99), Italian submarine Ascianghi, HMS Newfoundland (59)

• July 23, 1942

  1. The Holocaust: The Treblinka extermination camp is opened.

     The Holocaust, Treblinka extermination camp

  2. World War II: The German offensives Operation Edelweiss and Operation Braunschweig begin.

     World War II, Operation Edelweiss, Operation Braunschweig

  3. Bulgarian poet and Communist leader Nikola Vaptsarov is executed by firing squad.

     Bulgaria, Nikola Vaptsarov

• July 23, 1940

  1. The United States' Under Secretary of State Sumner Welles issues a declaration on the U.S. non-recognition policy of the Soviet annexation and incorporation of three Baltic states: Estonia, Latvia and Lithuania.

     Under Secretary of State, Sumner Welles, Welles Declaration, Soviet Union, Baltic states, Estonia, Latvia, Lithuania

• July 23, 1936

  1. In Catalonia, Spain, the Unified Socialist Party of Catalonia is founded through the merger of Socialist and Communist parties.

     Catalonia, Unified Socialist Party of Catalonia, Socialism, Communism

• July 23, 1929

  1. The Fascist government in Italy bans the use of foreign words.

     Italian Fascism, Kingdom of Italy

• July 23, 1927

  1. The first station of the Indian Broadcasting Company goes on the air in Bombay.

     Indian Broadcasting Company, Mumbai

• July 23, 1926

  1. Fox Film buys the patents of the Movietone sound system for recording sound onto film.

     Fox Film, Movietone sound system

• July 23, 1921

  1. The Communist Party of China (CPC) is established at the founding National Congress.

     Communist Party of China, 1st National Congress of the Communist Party of China

• July 23, 1914

  1. Austria-Hungary issues a series of demands in an ultimatum to the Kingdom of Serbia demanding Serbia to allow the Austrians to determine who assassinated Archduke Franz Ferdinand. Serbia accepts all but one of those demands and Austria declares war on July 28.

     Austria-Hungary, July Crisis, Kingdom of Serbia, Assassination of Archduke Franz Ferdinand of Austria, Archduke Franz Ferdinand of Austria, July 28

• July 23, 1908

  1. The Second Constitution accepted by the Ottomans.

     Second Constitutional Era, Ottoman Empire

• July 23, 1903

  1. The Ford Motor Company sells its first car.

     Ford Motor Company

• July 23, 1885

  1. President Ulysses S. Grant dies of throat cancer

     Ulysses S. Grant

• July 23, 1881

  1. The Boundary Treaty of 1881 between Chile and Argentina is signed in Buenos Aires.

     Boundary Treaty of 1881 between Chile and Argentina, Buenos Aires

• July 23, 1874

  1. Aires de Ornelas e Vasconcelos is appointed the Archbishop of the Portuguese colonial enclave of Goa, India.

     Aires de Ornelas e Vasconcelos, Archbishop, Kingdom of Portugal, Portuguese Goa

• July 23, 1862

  1. American Civil War: Henry Halleck takes command of the Union Army.

     American Civil War, Henry Halleck, Union Army

• July 23, 1840

  1. The Province of Canada is created by the Act of Union.

     Province of Canada, Act of Union 1840

• July 23, 1829

  1. In the United States, William Austin Burt patents the typographer, a precursor to the typewriter.

     William Austin Burt, Typographer (typewriter), Typewriter

• July 23, 1821

  1. While the Mora Rebellion continues, Greeks capture Monemvasia Castle. Turkish troops and citizens are transferred to Minor Asia coasts.

     Greek War of Independence, Monemvasia

• July 23, 1793

  1. Kingdom of Prussia re-conquers Mainz from France.

     Kingdom of Prussia, Mainz

  2. Roger Sherman, a Connecticut Patriot and member of the Committee of Five selected to draft the Declaration of Independence, dies of typhoid in New Haven, Connecticut, at age 72.

     Roger Sherman

• July 23, 1677

  1. Scanian War: Denmark-Norway captures the harbor town of Marstrand from Sweden.

     Scanian War, Denmark-Norway, Battle of Marstrand, Marstrand

• July 23, 1632

  1. Three hundred colonists bound for New France depart from Dieppe, France.

     New France, Dieppe

• July 23, 1319

  1. A Knights Hospitaller fleet scores a crushing victory over an Aydinid fleet off Chios.

     Knights Hospitaller, Battle of Chios (1319), Aydinid, Chios

• July 23, 0811

  1. Byzantine emperor Nikephoros I plunders the Bulgarian capital of Pliska and captures Khan Krum's treasury.

     Byzantine Empire, Nikephoros I, First Bulgarian Empire, Pliska, Krum