|Ab urbe condita||2774|
|Balinese saka calendar||1942–1943|
|British Regnal year||N/A|
|Chinese calendar||庚子年 (Metal Rat)|
4717 or 4657
— to —
辛丑年 (Metal Ox)
4718 or 4658
|- Vikram Samvat||2077–2078|
|- Shaka Samvat||1942–1943|
|- Kali Yuga||5121–5122|
|Japanese calendar||Reiwa 3|
|Julian calendar||Gregorian minus 13 days|
|Minguo calendar||ROC 110|
|Thai solar calendar||2564|
2147 or 1766 or 994
— to —
2148 or 1767 or 995
|Unix time||1609459200 – 1640995199|
|Wikimedia Commons has media related to 2021.|
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2021 (MMXXI) will be a common year starting on Friday of the Gregorian calendar, the 2021st year of the Common Era (CE) and Anno Domini (AD) designations, the 21st year of the 3rd millennium, the 21st year of the 21st century, and the 2nd year of the 2020s decade.
The United Nations has declared 2021 as the International Year of Peace and Trust, the International Year of Creative Economy for Sustainable Development, the International Year of Fruits and Vegetables, and the International Year for the Elimination of Child Labour.
The Polish Parliament assigned several patrons for year of 2021, so that 2021 is to be known as the Stanisław Lem Year, Stefan Wyszyński Year, Cyprian Norwid Year, Krzysztof Kamil Baczyński Year, Tadeusz Różewicz Year, as well as the Constitution of 3 May Year in Poland.
2021 is scheduled to host most major events that were originally scheduled for 2020, including the Eurovision Song Contest, UEFA Euro 2020, 2020 Summer Olympics, and Expo 2020, but were postponed or canceled due to the COVID-19 pandemic.
Predicted and scheduled events
- January – The Workers' Party of Korea is scheduled to convene its 8th Congress in North Korea.
- January 1 – Munster Technological University is scheduled to open in Ireland.
- January 3 – The 117th United States Congress is scheduled to convene and certify the Electoral College results of the 2020 United States presidential election.
- January 20 – Joe Biden is scheduled to be inaugurated for a four-year term as President of the United States, along with Kamala Harris as Vice President.
- January 31 – The 63rd Annual Grammy Awards are scheduled to be held in the United States.
- February 7 – Super Bowl LV is scheduled to be held at Raymond James Stadium in Tampa Bay, Florida in the United States.
- February 28 – The 78th Golden Globe Awards are scheduled to be held in the United States.
- March 8 – A murder trial is scheduled to begin for the four police officers involved in the killing of George Floyd.
- March 17 – The Dutch General Elections for the House of Representatives of the Netherlands are scheduled to take place.
- April 19 – Raúl Castro plans to resign as First Secretary of the Cuban Communist Party, ending 62 years of rule by the Castro brothers in Cuba.
- April 25 – The 93rd Academy Awards are scheduled to be held in Los Angeles.
- May 6 – The United Kingdom is scheduled to hold a series of local elections, including elections to the Welsh Parliament, the Scottish Parliament, the London Assembly, and the mayorship of London.
- May 18 – 22 – The Eurovision Song Contest 2021 is scheduled to be held in Rotterdam, Netherlands after the cancellation of the 2020 contest due to the COVID-19 pandemic.
- May 20 – June 12 – 2021 FIFA U-20 World Cup will be held in Indonesia.
- May 26 – The second-shortest total lunar eclipse of the 21st century will occur, lasting just 14 minutes and 30 seconds long.
- June 10 – Annular solar eclipse.
- June 11 – July 11 – The UEFA Euro 2020 is scheduled to be held across Europe, and the 2021 Copa América to be held in Argentina and Colombia. Both competitions were rescheduled from June 12, 2020 due to the COVID-19 pandemic.
- June 18 – Israel is scheduled to hold a presidential election.
- July 3 – August 7 – The British and Irish Lions begin their tour to South Africa.
- July 23 – August 8 – The 2020 Summer Olympics are scheduled to be held in Tokyo, Japan. They were rescheduled from July 24, 2020 due to the COVID-19 pandemic.
- September 1 – Singapore plans to prohibit the ivory trade on this date.
- September 5 – The Hong Kong Special Administration Region in China is scheduled to hold an election for the Legislative Council. 2021 Dutch Grand Prix formula 1.
- October 1 – The 2020 World Expo is scheduled to take place. It was rescheduled from October 20, 2020 due to the COVID-19 pandemic.
- October 1 – October 31 – The Russian Federation plans to hold a nationwide census.
- October 22 – Japan is scheduled to hold a general election for the House of Representatives.
- October 23 – November 27 – The 2021 Rugby League World Cup is scheduled to take place in England.
- October 24 – Germany is scheduled to hold a federal election for the Bundestag no later than this date.
- October 31 – NASA, the European Space Agency, the Canadian Space Agency, and the Space Telescope Science Institute plan to launch the James Webb Space Telescope, a successor to the Hubble Space Telescope.
- November – Planned launch of NASA's Artemis 1 mission to the Moon, the first integrated flight of the agency's Orion MPCV and Space Launch System (SLS) rocket.[importance?]
- November 1 – November 12 – The 2021 UN Climate Change Conference is scheduled to take place in Glasgow, Scotland, United Kingdom. It was rescheduled from November 9, 2020 due to the COVID-19 pandemic.
- December 4 – Total solar eclipse.
- The European Union will abolish daylight saving time.
- The National Institute for Health Protection will begin operations in the United Kingdom.
- GB News, a 24-hour television news channel, will begin broadcasting in the United Kingdom.
- The television network France 4 will cease broadcasting in France.
- China will begin construction of a large modular space station.
- Armenia is scheduled to hold a constitutional referendum.
- The Large Hadron Collider will recommence operations after a period of renovations.
- In the US, Brood X, the largest brood of North American seventeen-year cicadas, will emerge for the first time since 2004.
- Costa Rica is planned to become a completely carbon-neutral nation (date set by President Óscar Arias) and ban "single use" plastic products (date set by President Luis Guillermo Solís).
- The Grand Egyptian Museum, described as the largest archaeological museum in the world, is expected to be completed.
- Science first light of the Vera C. Rubin Observatory is anticipated for 2021 with full science operations to begin a year later.
- Plan S, an initiative for open-access science publishing launched in 2018, requires that from 2021 papers from over 10 European countries that resulted from research funded by public grants must be published under an open licence in compliant journals or platforms, available to all.
- ISRO have planned to launch Chandrayaan-3 mission to moon in march 2021 calendar.
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- "International Year of Creative Economy for Sustainable Development". United Nations. Archived from the original on February 15, 2020. Retrieved February 15, 2020.
- "International Year of Fruits and Vegetables". United Nations. Archived from the original on February 15, 2020. Retrieved February 15, 2020.
- "2021 declared International Year for the Elimination of Child Labour". International Labour Organization. Retrieved November 27, 2020.
- "Sejm wybrał patronów roku 2021"
- "Here are the latest major events that have been canceled or postponed because of the coronavirus outbreak, including the 2020 Tokyo Olympics, Burning Man, and the 74th Annual Tony Awards". Retrieved August 29, 2020.
- Roisin Burke (November 12, 2020). "Munster Technological University to be established on January 1, Minister confirms". Echolive.ie. Retrieved November 17, 2020.
- "59TH INAUGURAL CEREMONIES". The Joint Congressional Committee on Inaugural Ceremonies. Retrieved November 10, 2020.
- "The 63rd GRAMMYs: Looking Ahead To The 2021 GRAMMY Awards". Grammys. August 19, 2020. Retrieved November 1, 2020.
- "Judge orders 1 trial for 4 officers charged in George Floyd's death". FOX 9. November 5, 2020. Retrieved November 7, 2020.
- "Raul Castro expected to step down". Associated Press. Retrieved November 17, 2020.
- "Rotterdam returns as Eurovision Song Contest Host City in 2021". eurovision.tv. May 16, 2020. Retrieved May 29, 2020.
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- "Workshop Virtual untuk Persiapan Piala Dunia U-20" [Virtual Workshop for U-20 World Cup Preparation]. pssi.org (in Indonesian). Football Association of Indonesia. June 17, 2020. Retrieved June 27, 2020.
- "Catalog of Lunar Eclipses: 2001 to 2100". eclipse.gsfc.nasa.gov. Retrieved May 29, 2020.
- "NASA - Annular Solar Eclipse of 2021 June 10". eclipse.gsfc.nasa.gov. Retrieved August 3, 2020.
- "EURO 2020: All you need to know about the tournament". UEFA.com. March 17, 2020. Retrieved May 29, 2020.
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- "Rugby League World Cup 2021". www.rlwc2021.com. Retrieved January 8, 2020.
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- "HOME". UN Climate Change Conference (COP26) at the SEC – Glasgow 2020. Retrieved June 5, 2020.
- "NASA - Total Solar Eclipse of 2021 Dec 04". eclipse.gsfc.nasa.gov. Retrieved August 3, 2020.
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- National Geographic, February 2008
- "Costa Rica launches quest to replace most single-use plastic by 2021". June 6, 2017.
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- "Vera C. Rubin Observatory". AURA Astronomy. Retrieved September 16, 2020.
- Wu, Katherine J. "For the First Time, a National U.S. Observatory Has Been Named for a Female Astronomer: Vera Rubin". Smithsonian Magazine. Retrieved September 16, 2020.
- "What Does the Future of Astronomy Hold? We'll Find Out Soon". Discover Magazine. Retrieved September 16, 2020.
- "Coalition of European Funders Announces 'Plan S' to Require Full OA, Cap APCs, & Disallow Publication in Hybrid Journals". SPARC. September 4, 2018.
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