1 E15 s

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To help compare orders of magnitude of different times this page lists times between 10¹⁵ seconds and 10¹⁶ seconds (32 million years and 320 million years) See also times of other orders of magnitude.

• Shorter times
• 34.7 million years -- half-life of niobium-92
• 36 million years -- time since end of Eocene Epoch and beginning of Oligocene Epoch
• 40 million years -- This long into the future, Australia will slam into Asia
• 65 million years -- time since end of Cretaceous Period (end of Mesozoic Era) and beginning of Tertiary Period (beginning of Cenozoic Era)
• 65 million years -- time since Cretaceous-Tertiary extinction event
• 135 million years -- time since end of Jurassic and beginning of Cretaceous Period
• 195 million years -- time since end of Triassic and beginning of Jurassic Period
• 225 million years -- time since end of Permian Period (end of Palaeozoic Era) and beginning of Triassic Period (beginning of Mesozoic Era)
• 226 million years -- time it takes the solar system to complete one rotation around the center of the Milky Way
• 280 million years -- time since end of Carboniferous and beginning of Permian Period
• Longer times