1 E12 s

This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (July 2009)

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

Elapsed time

• 40 000 years—time since the Cro-Magnon colonisation of Europe (Upper Paleolithic)
• 50 000 years—age of Haplogroup B (mtDNA)
• 60 000 years—approximate age of Haplogroup N (mtDNA), Haplogroup C (mtDNA) and Haplogroup A (mtDNA); out of Africa migration
• 75 000 years—time since the ancestors of the Indigenous Australians reached Australia
• 80 000 years—approximate age of Haplogroup M (mtDNA)
• 90 000 years—approximate age of Y-chromosomal Adam
• 100 000 years—earliest estimate for the domestication of dogs
• 125 000 years—approximate time since the start of interglacial climates during of the Eemian Stage.
• 150 000 years—approximate age of mitochondrial Eve
• 160 000 years—time since the Homo sapiens idaltu/Homo sapiens sapiens split
• 200 000 years—approximate age of Homo sapiens
• 250 000 years—approximate age of Homo neanderthalensis
• 300 000 years—time since Homo sapiens separated from Homo erectus (Middle Paleolithic); approximate age of Canis lupus

Half lives

• 76 000 years -- half-life of nickel-59
• 154 000 years—half-life of neptunium-236
• 159 200 years—half-life of uranium-233
• 211 100 years—half-life of technetium-99
• 301,000 years—half-life of chlorine-36

• Longer times