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 (32 years and 320 years). See also times of other orders of magnitude
- Shorter times
- 63 years -- half-life of titanium-44
- 68.9 years -- half-life of uranium-232
- 72 years, 3 months, 18 days: reign of Louis XIV
- 75 years -- average life span of humans in the first world
- 78 years -- estimated maximum lifespan of an elephant
- 84 years, 3 days, 15.66 hours -- one orbit of Uranus
- 100 years -- one century = 3.16 × 109 seconds
- 100.1 years -- half-life of nickel-63
- 122 years and 164 days -- 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
- 269 years -- half-life of argon-39
- 288 years -- one orbit of Quaoar
- 304 years -- duration of the Romanov dynasty in Russia
- Longer times
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