Ltpgtthe q563 is a 24 hour changeover time switch that comes with a day omit on for one circuit only functionltbr gtltbr gtthis time switch allows you to alternate between two applications the ampldquoday omissionamprdquo function allows you to select any number of days in the week on which the switching cycle will be disabledampnbspltbr gtltbr gtthere is a manual override button for your convenienceltpgt