How long is a jiffy time?
In astrophysics and quantum physics a jiffy is, as defined by Edward R. Harrison, the time it takes for light to travel one fermi, which is approximately the size of a nucleon. One fermi is 10−15 m, so a jiffy is about 3 × 10−24 seconds.
Is jiffy an actual measurement of time?
FACT: a “jiffy” is an actual measurement of time. In physics (of the astro- and quantum variety) a jiffy is specifically defined as the time it takes light to travel 1 centimeter. That would be 0.000,000,000,033,300 seconds. Jiffy has also been bandied about as another term to describe the Planck interval.
