1 E17 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 10¹⁷ seconds and 10¹⁸ seconds (3.2 and 32 billion years) See also times of other orders of magnitude.

Shorter times
3.9 to 4.1 billion years — age of oldest cellular life (cyanobacteria)
3.7 to 3.9 billion (3.7e9 to 3.9e9) years — age of the Mare Imbrium, the Lower Imbrian epoch
4.468 billion years — half-life of uranium-238
4.5 billion years — age of the Earth (see: Precambrian)
10 billion years — expected main sequence lifetime of a G2 dwarf star (like the Sun)
13.7 ± 0.2 billion years (4e17 seconds) — estimated age of the universe according to the Big Bang theory
20 billion years — time until the end of the universe in the Big Rip scenario
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