Convert Planck Time to Yoctoseconds
Convert Planck Time (t_P) to Yoctoseconds (ys) instantly and accurately.
Conversion Formula
ys = t_P × 5.391247000e-20
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.
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
| Planck Time (t_P) | Yoctoseconds (ys) |
|---|---|
| 1 t_P | 5.391 × 10-20 ys |
| 2 t_P | 1.078 × 10-19 ys |
| 5 t_P | 2.696 × 10-19 ys |
| 10 t_P | 5.391 × 10-19 ys |
| 25 t_P | 1.348 × 10-18 ys |
| 50 t_P | 2.696 × 10-18 ys |
| 100 t_P | 5.391 × 10-18 ys |