A method for executing a function of an electronic device is provided. The method includes the operations of displaying a virtual clock user interface (UI) indicating a virtual time, and an icon list UI including icons corresponding to a plurality of functions, respectively, acquiring first input data according to a user input for selecting one time by using the displayed virtual clock UI, and second input data according to a user input for selecting one icon from the icon list UI, performing control, on the basis of the first input data and the second input data, so that a function corresponding to the selected icon is executed at the selected one time, and highlighting the selected icon as the virtual time reaches the one time, and executing the function corresponding to the selected icon as the current time reaches the one time.