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
• 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
• 76 000 years -- half-life of nickel-59
• 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 peak of the Eemian interglacial period
• 150 000 years -- approximate age of mitochondrial Eve
• 154 000 years -- half-life of neptunium-236
• 159 200 years -- half-life of uranium-233
• 160 000 years -- time since the Homo sapiens idaltu/Homo sapiens sapiens split
• 200 000 years -- approximate age of Homo sapiens
• 211 100 years -- half-life of technetium-99
• 250 000 years -- approximate age of Homo neanderthalensis
• 300 000 years -- time since Homo sapiens separated from Homo erectus (Middle Paleolithic)
• 301,000 years -- half-life of chlorine-36
• Longer times

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