Unfortunately, the timing varies greatly depending on many factors. First of all, each consulate communicates the data of the person who has registered to the municipality in Italy. This first part is generally very quick. Unfortunately the second part, i.e. the registration in the local population registers, completely depends on the municipality in question. In some cases it is days, in others even months. The only solution in these cases is to communicate with the first municipality of domicile or birth in Italy and with their Aire Office to see if they have actually registered.