To help compare
orders of magnitude of different times this page lists times between 10
16 seconds and 10
17 seconds (320 million years and 3200 million years)
- shorter times
- 340 million years -- time since beginning of Carboniferous Period
- 340 million years -- time since end of Devonian Period
- 400 million years -- time since beginning of Devonian Period
- 400 million years -- time since end of Silurian Period
- 435 million years -- time since beginning of Silurian Period
- 435 million years -- time since end of Ordovician Period
- 500 million years -- time since beginning of Ordovician Period
- 500 million years -- time since end of Cambrian Period
- 540 million years -- time since beginning of Cambrian Period
- longer times