Convert Attoseconds to Days
Convert Attoseconds (as) to Days (d) instantly and accurately.
Conversion Formula
d = as × 1.157407407e-23
About Attoseconds
An attosecond (as) = 10⁻¹⁸ s - the timescale of electron dynamics in atoms. The Bohr-model orbital period in hydrogen is ~152 as. Electron tunnelling through atomic potential barriers takes a few hundred as. The 2023 Nobel Prize in Physics (Agostini, Krausz, L'Huillier) honoured methods for generating sub-100 as pulses via high-harmonic generation in Ti:sapphire lasers. 1 as = 10⁻¹⁸ s = 1,000 zs.
About Days
A day (d) = exactly 86,400 s. Earth's actual solar day varies ±16 s due to orbital eccentricity and axial tilt (equation of time). Leap seconds (abandoned in UTC after 2035) corrected the TAI-UT1 divergence. Mars's sol = 24 h 39 min 35 s ≈ 88,775 s; a Martian year = 668.6 sols. The day structures circadian biology, tides, and planetary science. 1 day = 86,400 s = 24 h.
Quick Reference Table
| Attoseconds (as) | Days (d) |
|---|---|
| 1 as | 1.157 × 10-23 d |
| 2 as | 2.315 × 10-23 d |
| 5 as | 5.787 × 10-23 d |
| 10 as | 1.157 × 10-22 d |
| 25 as | 2.894 × 10-22 d |
| 50 as | 5.787 × 10-22 d |
| 100 as | 1.157 × 10-21 d |