The period for which an Italy Visit Visa is valid hinges on your travel reason, paperwork, and past visa applications. Visas can be issued for as short as a few days or up to five years for people who travel often and get multiple-entry visas. Even if your visa is valid for a long, you can only stay for 90 days within any 180-day window. The dates your visa is valid and how many times you can enter are listed on your visa. You should schedule your visits to stay within these rules.