An information processing device includes: timing means for performing a timing action thereby to output time information indicating the result of the timing action; unit time outputting means for converting the time, as indicated by the time information outputted from the timing means, into individual unit times, as expressed by using a plurality of time units individually, thereby to output the plural unit times individually; unit-by-unit contents decision means for individually deciding the unit presentation contents of an object to be presented to a user, individually for the plural time units, on the basis of such one of the plural unit times outputted from the unit time outputting means as is expressed by a target time unit; general contents decision means for deciding the general presentation contents of the object at the time which is indicated by the time information outputted from the timing means, on the basis of the unit presentation contents for every the time units decided by the unit-by-unit contents decision means; and presentation means for presenting the object with the general presentation contents decided by the general contents decision means.