Only for Accademia Gallery, Medici Chapel and Bargello Museum, you could click on "Download Area" button, on the top right of all the web pages, insert your e-mail address, then you have two cases, For the Accademia Gallery, the Medici Chapel, and the Bargello Museum only, you can click the "Download Area" button at the top right of all web pages and enter your email address. You then have two options, as follows: (For other museums, where admission requires a ticket, it will not be possible to change your visit.)
1st: You do not have your reservation number yet assigned, so you can simply click on the “change” button and send an e-mail to us, using the given form, with the new requested date/time, without any additional charge.
2nd: you have already been given the reservation number, so please ckick the “change” button and you will be redirect to the event main page where you can change your date/time directly on the top left form, the same used for your original reservation.
Please note that in this case you have to pay an additional service of 5 Euro for the change.