Convert Attoseconds to Fortnights
Convert Attoseconds (as) to Fortnights (fn) instantly and accurately.
Conversion Formula
fn = as × 8.267195767e-25
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 Fortnights
A fortnight = exactly 14 days = 2 weeks = 1,209,600 s. From Old English 'feowertiene niht' (fourteen nights), reflecting the Germanic custom of counting nights. Common in British, Irish, Australian, and NZ English for pay periods, rental cycles, and parliamentary recesses. The Moon's phase advances ~half a synodic month (≤14.77 days) per fortnight; spring and neap tides also cycle fortnightly. 1 fortnight = 14 d = 1,209,600 s.
Quick Reference Table
| Attoseconds (as) | Fortnights (fn) |
|---|---|
| 1 as | 8.267 × 10-25 fn |
| 2 as | 1.653 × 10-24 fn |
| 5 as | 4.134 × 10-24 fn |
| 10 as | 8.267 × 10-24 fn |
| 25 as | 2.067 × 10-23 fn |
| 50 as | 4.134 × 10-23 fn |
| 100 as | 8.267 × 10-23 fn |