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
• 5.2714 years -- half life of cobalt-60
• 10 years -- one decade = 3.16 × 10⁸ seconds
• 11 years -- sunspot activity cycle (7.5 to 11 years)
• 11.87 years -- one orbit of Jupiter
• 13.08 years -- half life of californium-250
• 16.13 years -- half life of niobium meta state Nb-93m
• 19.0002 years -- 235 months (1 Metonic cycle)
• 29.1 years -- half life of curium-243
• 29.458 years -- one orbit of Saturn
• Longer times