Convert Seconds to Yoctoseconds
Convert Seconds (s) to Yoctoseconds (ys) instantly and accurately.
Conversion Formula
ys = s × 1.000000000e+24
About Seconds
The second (s) is the SI base unit of time, defined since 1967 as exactly 9,192,631,770 periods of the caesium-133 ground-state hyperfine transition at 0 K. Caesium fountain clocks realise this to ~10⁻¹⁶ (1 s lost per ~300 million years); optical lattice clocks (Sr, Yb) reach ~10⁻¹⁸. The second links to the metre via the defined speed of light c = 299,792,458 m/s exactly. 1 s = 1,000 ms = 1/60 min.
About Yoctoseconds
A yoctosecond (ys) = 10⁻²⁴ s - the smallest named SI prefix time unit. Light travels ~0.3 fm in 1 ys, about one-tenth the proton charge radius. Strong-force quark binding operates on ~1 ys timescales; W and Z boson lifetimes are ~260-290 ys. Lead-lead collisions at the LHC produce quark-gluon plasma that thermalises within a few ys. These timescales are inferred from decay widths via ΔE × Δt ≥ ℏ. 1 ys = 10⁻²⁴ s.
Quick Reference Table
| Seconds (s) | Yoctoseconds (ys) |
|---|---|
| 1 s | 1 × 1024 ys |
| 2 s | 2 × 1024 ys |
| 5 s | 5 × 1024 ys |
| 10 s | 1 × 1025 ys |
| 25 s | 2.5 × 1025 ys |
| 50 s | 5 × 1025 ys |
| 100 s | 1 × 1026 ys |