Redshift is observed in the spectra of virtually all galaxies 30m lt yrs or more away. The realistic demonstration that the implied recessional velocity is due to the expansion of space is: the dimmer the light from 'standard candles', the greater the redshift. Owing to the effects of gravitation, the redshift of a single more local object, though it might be consistent with the expansion rate, may or may not be entirely attributable to the expansion.

"Time is what prevents everything from happening at once" - John Wheeler