In an apparatus for controlling operation of a utility vehicle that is driven by a prime mover to run within a working area, a map is generated by arraying multiple cells in a grid pattern with respect to the working area (S10 - S14), area of the working area is calculated based on the generated map (S16), and required work period per unit time period is calculated in accordance with first characteristics with respect to the calculated area (S20). Then user information including at least the calculated area and required work period are shown to prompt the user to input user's preferred work period and preferred working time of day (S22). Next target work schedule is calculated by distributing the required work period within the unit time period in accordance with second characteristics based on the user's preferred work period and preferred working time of day inputted by the user and work is controlled in accordance with the calculated target work schedule (S24, S26).
