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To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (10¹³ seconds and 10¹⁴ seconds) See also times of other orders of magnitude.

Shorter times
340,000 years -- half-life of curium-248
379 000 years -- time after the Big Bang until cosmic microwave background radiation began
~600,000 years -- time humans have been able to produce the sounds of spoken languages
~700,000 years -- time since last reversal of earth's magnetic field
1,000,000 years -- the average lifespan of a blue supergiant star
1,500,000 years -- time since beginning of Pleistocene Epoch (beginning of Quaternary Period)
1,500,000 years -- time since end of Pliocene Epoch (end of Tertiary Period)
1,530,000 years -- half-life of zirconium-93
2,600,000 years -- half-life of technetium-97
Longer times