1 e12 s

To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (10¹² seconds—a terasecond—and 10¹³ seconds). See also times of other orders of magnitude

Shorter times
~75 000 years -- time since a group of humans became the Australian Aborigines
76 000 years -- half-life of nickel-59
90 000 years -- approximate age of Y-chromosomal Adam
150 000 years -- approximate age of mitochondrial Eve
154 000 years -- half-life of neptunium-236
159 200 years -- half-life of uranium-233
211 100 years -- half-life of technetium-99
300 000 years -- time since Homo sapiens separated from Homo erectus
300 000 years -- time after the Big Bang until cosmic microwave background radiation began
301,000 years -- half-life of chlorine-36
Longer times

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