1 E9 s

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To help compare orders of magnitude of different times this page lists times between 10⁹ seconds (a gigasecond) and 10¹⁰ seconds (31.7 years and 317 years). See also times of other orders of magnitude

• Shorter times
• 35 years (1.10 × 10⁹ s) -- Constitutionally-mandated minimum age for President of the United States.
• 36 years (1.14 × 10⁹ s) -- recorded maximum lifespan of a cat
• 50.5 years (1.59 × 10⁹ s) -- average age of human menopause
• 52 years—length of one calendar round in the Mesoamerican calendar
• 60 years—length of one full cycle (Celestial stem/Terrestrial branch) in the Chinese calendar
• 63 years, 8 months—Reign of Queen Victoria
• 64 years—Reign of the Pharaoh Rameses II
• 65 years (2.05 × 10⁹ s) -- a common age for retirement of workers
• 72 years, 3 months, 18 days (2.28 × 10⁹ s) -- reign of Louis XIV
• 74 years—duration of Communist rule in Russia
• 75 years -- average life span of humans in the First World
• 78 years—estimated maximum lifespan of an elephant
• 84.3 years—one orbit of Uranus
• 100 years (3.156 × 10⁹ s)-- one century
• 122 years and 164 days (3.86 × 10⁹ s) -- longest recorded lifespan of any known human (Jeanne Calment)
• 165 years—one orbit of Neptune
• 190 years—credited age of the oldest known tortoise, oldest land animal
• 247.7 years—one orbit of Pluto
• 283 years—duration of the Inca Empire
• 288 years—one orbit of Quaoar
• 302 years—duration of Spanish colonial rule in Mexico
• 304 years—duration of the Romanov dynasty in Russia
• 310 years—one orbit of Makemake

Elapsed time

• 32 years—time in 2009 since the introduction of the first mass-produced personal computers. Also, time since the launch of the Voyager spacecraft, currently the most distant man-made objects in the universe.
• 33 years—Time in 2009 since the first outbreak of the Ebola virus
• 34 years—Time in 2009 since the end of the Vietnam War and the death of Dmitri Shostakovich
• 35 years—Time in 2009 since the Turkish occupation of Cyprus
• 36 years—Time in 2009 since the beginning of the Watergate scandal; also, time since the Supreme Court of the United States decided Roe v. Wade; time since the death of Pablo Picasso
• 37 years—Time in 2009 since Northern Ireland's Bloody Sunday
• 38 years—Time in 2009 since the independence of Bangladesh.
• 40 years—Time in 2009 since the Moon landing and the Woodstock festival
• 41 years—Time in 2009 since the assassination of Martin Luther King, the Prague Spring and the May 1968 protests in France.
• 42 years—Time in 2009 since the Summer of Love and the Six Day War
• 45 years—Time in 2009 since the signing of the Civil Rights Act in the US abolished segregation
• 46 years—Time in 2009 since the independence of Kenya, the creation of Malaysia, the assassination of John F. Kennedy and the launch of the first geostationary satellite.
• 47 years—Time in 2009 since the Cuban missile crisis, the independence of Algeria and The Beatles' first record.
• 48 years—Time in 2009 since the independence of Uganda, the building of the Berlin Wall, and the first human spaceflight
• 49 years—Time in 2009 since the independence of Somalia, Togo and the Belgian Congo (now the Democratic Republic of the Congo) and the first (and to date only) manned descent to the deepest point on Earth, the Mariana Trench
• 50 years—Time in 2009 since the Cuban Revolution, the independence of Cyprus and Singapore, the admission of Alaska and Hawaii into the United States, the Dalai Lama's exile from Tibet, the beginning of the Vietnam War and the discovery of "Lucy" in Olduvai Gorge in Tanzania.
• 51 years—Time in 2009 since the independence of Chad, Gabon and the Republic of the Congo, and the founding of NASA, the FAA and CND (and the creation of the CND's symbol, the peace sign)
• 52 years—Time in 2009 since the launch of Sputnik 1 and the beginning of the Space Age, the independence of Ghana and Tunisia, and the Treaty of Rome, which would eventually lead to the European Union.
• 53 years—Time in 2009 since the independence of Sudan and Tunisia, the full independence of Pakistan, the Hungarian uprising and the Suez crisis.
• 54 years—Time in 2009 since the signing of the Warsaw Pact
• 55 years—Time in 2009 since the Supreme Court of the United States decided Brown v. Board of Education, ordering an end to racial segregation in public schools.
• 56 years—Time in 2009 since the independence of Cambodia, the discovery of DNA and the isolation of the polio vaccine, the first ascent of Mount Everest, the deposing of Mohammed Mossadeq in Iran and the end of the Korean War.
• 57 years—Time in 2009 since the first detonation of the hydrogen bomb
• 59 years—Time in 2009 since the beginning of the Korean War
• 60 years—Time in 2009 since the partition of Germany and Kashmir, the creation of NATO, the establishment of the People's Republic of China and the independence of Indonesia.
• 61 years—Time in 2009 since the Arab-Israeli War, the Berlin Airlift, the Marshall Plan, the founding of the OECD and the World Health Organization, the assassination of Mohandas Gandhi and the independence of Myanmar.
• 62 years—Time in 2009 since the independence of India and Pakistan and the breaking of the sound barrier.
• 64 years—Time in 2009 since the creation of the atomic bomb, and Bela Bartók's Third Piano Concerto; end of World War II and the Holocaust.
• 70 years-Time in 2009 since the beginning of World War II in Europe
• 72 years—Time in 2009 since the Japanese invasion of China, and the beginning of World War II in the Far East; time since the deaths of Maurice Ravel and George Gershwin
• 80 years—time in 2009 since the Wall Street crash of 1929 and the beginning of the Great Depression
• 82 years—age of commercially-viable "talking pictures" as of 2009
• 88 years—Time in 2009 since the independence of the Republic of Ireland
• 90 years—time since the end of World War I as of June, 2009
• 92 years—Time in 2009 since the Russian Revolution
• 100 years—Time in 2009 since the independence of Panama
• 104 years-Time in 2009 since Albert Einstein postulated relativity.
• 106 years-Time since the first controlled heavier-than-air flight of the Wright Brothers.
• 113 years—time since the 1896 Olympic Games, the first modern Olympic Games
• 130 years—approximate age of the telephone, recorded sound, and the electric light
• 138 years—time in 2009 since the unification of Germany and Italy
• 184 years—time in 2009 since the first isolation of aluminum
• 184 years—time in 2005 since the premiere of Beethoven's Ninth Symphony.
• 193 years—Time in 2009 since the Independence of Argentina
• 199 years—Time in 2009 since the Independence of Mexico
• 220 years—time (in 2009) since the French Revolution
• 233 years—age of the United States as of 2009
• 259 years—age of Johann Sebastian Bach's incomplete Art of Fugue as of 2009
• 302 years—time in 2009 since the Acts of Union 1707 created the Kingdom of Great Britain

Half lives

• 63 years -- half-life of titanium-44
• 68.9 years—half-life of uranium-232
• 100.1 years -- half-life of nickel-63
• 269 years—half-life of argon-39

• Longer times