Dates for maintenance / inspection

We get our xc40 in the Christmas week. Then the service/the inspection has to be made exactly after 365 days again in the Christmas time, so that the guarantee is secured? (If you change the date of a brand from Asia by a very short time, is out of the guarantee). Or can our dealer change the date for the inspection by approx. 2 months in the board system. (Once in the life of each vehicle you can also have the HU appointment redefined.) Thank you for an info.