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To help compare orders of magnitude of different times this page lists times between 3.2 years and 32 years (108 seconds and 109 seconds). See also times of other orders of magnitude. Shorter times 3.3 years -- half-life of rhodium-101 10 years -- one decade = 3.16 x 108 seconds 11 years -- sunspot activity cycle (7.5 to 11 years) 11.87 years -- one orbit of Jupiter 29.458 years -- one orbit of Saturn Longer times