a display control apparatus which improves the visibility of a display unit having a normal display section and a normal non - display section provided outside the normal display section along its at least one side . when it is not sensed that the display unit is inclined at a predetermined angle to a horizontal surface , time information is displayed in a normal size on the normal display section . when it is sensed that the display unit is inclined at the predetermined angle to the horizontal surface , the time information is displayed in an enlarged size on a whole of the normal display and non - display sections for a predetermined time .