1 E12 s

Orders of magnitude (time) in E notation
Planck time 1 E-25 s 1 E-24 s 1 E-21 s 1 E-18 s 1 E-17 s 1 E-16 s 1 E-15 s 1 E-14 s 1 E-13 s 1 E-12 s 1 E-11 s 1 E-10 s 1 E-9 s 1 E-8 s 1 E-7 s 1 E-6 s 1 E-5 s 1 E-4 s 1 E-3 s 1 E-2 s 1 E-1 s	1 E0 s 1 E1 s 1 E2 s 1 E3 s 1 E4 s 1 E5 s 1 E6 s 1 E7 s 1 E8 s 1 E9 s 1 E10 s 1 E11 s 1 E12 s 1 E13 s 1 E14 s 1 E15 s 1 E16 s 1 E17 s 1 E18 s 1 E19 s and more
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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

v • d • e Orders of magnitude (time), by powers of seconds

Negative powers	10⁻⁴⁴ s \| ... \| 10⁻²⁵ s \| 10⁻²⁴ s ... 10⁻²² s \| 10⁻²¹ s ... 10⁻¹⁹ s \| 10⁻¹⁸ s ... 10⁻¹⁶ s \| 10⁻¹⁵ s ... 10⁻¹³ s \| 10⁻¹² s \| 10⁻¹¹ s \| 10⁻¹⁰ s \| 10⁻⁹ s \| 10⁻⁸ s \| 10⁻⁷ s \| 10⁻⁶ s \| 10⁻⁵ s \| 10⁻⁴ s \| 10⁻³ s \| 10⁻² s \| 10⁻¹ s

Positive powers	1 s \| 10 s \| 10² s \| 10³ s \| 10⁴ s \| 10⁵ s \| 10⁶ s \| 10⁷ s \| 10⁸ s \| 10⁹ s \| 10¹⁰ s \| 10¹¹ s \| 10¹² s \| 10¹³ s \|10¹⁴ s \| 10¹⁵ s \| 10¹⁶ s \| 10¹⁷ s \| 10¹⁸ s \| 10¹⁹ s and more