  We consider sample to sample fluctuations of the waiting time between the
detection of two consecutive electrons in quasi-one-dimensional disordered
conductors at zero temperature. We compute the full distribution of the mean
waiting time along the crossover from ballistic to localised transport in the
framework of the Dorokhov-Mello-Pereyra-Kumar theory for an arbitrary number of
conduction channels. In particular we show that its variance, with respect to
disorder, displays universal fluctuations similar to the universal conductance
fluctuations in the metallic regime. We then discuss the statistical properties
of the jitter associated to quantum fluctuations of the waiting time.
