| Millennium: | 3rd millennium |
|---|---|
| Centuries: | 20th century – 21st century – 22nd century |
| Decades: | 1980s 1990s 2000s – 2010s – 2020s 2030s 2040s |
| Years: | 2008 2009 2010 – 2011 – 2012 2013 2014 |
| Gregorian calendar | 2011 MMXI |
| Ab urbe condita | 2764 |
| Armenian calendar | 1460 ԹՎ ՌՆԿ |
| Assyrian calendar | 6761 |
| Bahá'í calendar | 167–168 |
| Bengali calendar | 1418 |
| Berber calendar | 2961 |
| British Regnal year | 59 Eliz. 2 – 60 Eliz. 2 |
| Buddhist calendar | 2555 |
| Burmese calendar | 1373 |
| Byzantine calendar | 7519–7520 |
| Chinese calendar | 庚寅年十一月廿七日 (4647/4707-11-27) — to —
辛卯年十二月初七日(4648/4708-12-7) |
| Coptic calendar | 1727–1728 |
| Ethiopian calendar | 2003–2004 |
| Hebrew calendar | 5771–5772 |
| Hindu calendars | |
| - Vikram Samvat | 2067–2068 |
| - Shaka Samvat | 1933–1934 |
| - Kali Yuga | 5112–5113 |
| Holocene calendar | 12011 |
| Iranian calendar | 1389–1390 |
| Islamic calendar | 1432–1433 |
| Japanese calendar | Heisei 23 (平成23年) |
| Julian calendar | Gregorian minus 13 days |
| Korean calendar | 4344 |
| Minguo calendar | ROC 100 民國100年 |
| Thai solar calendar | 2554 |
| Unix time | 1293840000–1325375999 |
| Wikimedia Commons has media related to: 2011 |
2011 (MMXI) was a common year that started on a Saturday in the Gregorian calendar. It was the 2011th year of the Common Era (CE) and Anno Domini (AD) designations; the 11th year of the 3rd millennium and of the 21st century; and the 2nd of the 2010s.
The United Nations designated 2011 as the International Year of Forests and the International Year of Chemistry.[1] It was marked by a wave of revolutions in the Arab World known as the Arab Spring, including the beginnings of several unresolved protest movements and armed conflicts.
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