  In analogy with usual Anderson localization taking place in time-independent
disordered quantum systems where the disorder acts in configuration space,
systems exposed to temporally disordered potentials can display Anderson
localization in the time domain. We demonstrate this phenomenon with
one-dimensional examples where a temporally disordered potential induces
localization during the quantum evolution of wave-packets, in contrast with a
fully delocalized classical dynamics. This is an example of a time crystal
phenomenon, i.e., a crystalline behavior in the time domain.
