You can add exceptions in RentMagic to compose an extended period. This means that you can set certain partial periods that are not included in the calculation of the period price. In fact, the entire period is used for inventory transactions as well as the reservation of an item, but the exceptions are not taken into account as a unit for determining the final price to be paid. A common example is working week, which excludes the weekend days Saturday and without. These two days are not included in the final price, for example not counting with 7 days, but with only 5 days.