On the larger scale, anisotropies are decreased more slowly, with significant degradation happening within one unit of Hubble time.

The reciprocal of H is the Hubble time.

The phrase "expansion timescale" means "Hubble time".

Mach8: is a definite number, of order unity, where is the mean density of matter in the universe, and is the Hubble time.

So a rough estimate of the age of the universe comes from the Hubble time, the inverse of the Hubble parameter, or .

(The numerical value of the Hubble length in light years is, by definition, equal to that of the Hubble time in years.)

The Hubble length or Hubble distance is a unit of distance in cosmology, defined as -the speed of light multiplied by the Hubble time.

Rapidly spinning neutron stars with masses between 1.5 and 1.8 solar masses are theoretically the best candidates for conversion due to spin down of the star within a Hubble time.

He further showed that based on the local galaxy merger rate, over a Hubble time the observed number of elliptical galaxies are produced if the universe begins with only spiral galaxies.

"Consider," had said Chaeron, "Whitrow's observa- tion in the late twentieth century that the ratio of Hubble time to the unit of neurophysiological time is almost the same as the ratio of neurophysiological to the chronon."