To help compare orders of magnitude of different times this page lists times between 10⁻¹⁵ seconds and 10⁻¹² seconds (1 femtosecond and 1 picosecond) See also times of other orders of magnitude.

• shorter times
• 1.30 × 10⁻¹⁵ seconds – cycle time for 390 nanometre light, transition from visible light to ultraviolet
• 2.57 × 10⁻¹⁵ seconds – cycle time for 770 nanometre light, transition from visible light to near-infrared
• 100 fs -- the time required to travel across a human hair, if travelling at the speed of light
• 200 fs -- the fastest chemical reactions, such as the reaction of pigments in an eye to light
• 300 fs -- the duration of a vibration of the atoms in an iodine molecule
• longer times

Orders of magnitude (time)

Femtosegundo | Femtosegundo | 1 E-15 s | 1 E-15 s | Femtossegundo