Convert Yoctoseconds to Planck Time
Convert Yoctoseconds (ys) to Planck Time (t_P) instantly and accurately.
Conversion Formula
t_P = ys × 1.854858440e+19
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.
About Planck Time
The Planck time (t_P) = √(ℏG/c⁵) ≈ 5.391 × 10⁻⁴⁴ s — the time for light to travel one Planck length (~1.616 × 10⁻³⁵ m). Below this scale, general relativity and quantum mechanics both break down; a theory of quantum gravity is needed. No physical process or instrument approaches this timescale — it is a theoretical lower bound. Introduced by Max Planck in 1899. 1 t_P ≈ 5.391 × 10⁻⁴⁴ s.
Quick Reference Table
| Yoctoseconds (ys) | Planck Time (t_P) |
|---|---|
| 1 ys | 1.855 × 1019 t_P |
| 2 ys | 3.71 × 1019 t_P |
| 5 ys | 9.274 × 1019 t_P |
| 10 ys | 1.855 × 1020 t_P |
| 25 ys | 4.637 × 1020 t_P |
| 50 ys | 9.274 × 1020 t_P |
| 100 ys | 1.855 × 1021 t_P |