There is provided a travel time display device for an industrial robot
which can display travel time on the screen such that time taken for
moving a work from any designated starting point to any other point can
be seen at a glance. The travel time display device includes: a display
for displaying on the screen the location of the industrial robot and an
area in which the industrial robot can transport the work; a position
designator for designating a travel starting point of the industrial
robot at an arbitrary position on the display screen; a calculator for
setting a plurality of time intervals with respect to necessary travel
time from the travel starting point and calculating a travelable area, to
be displayed on the display screen; and a display for depicting the
travelable areas with a visual discrimination between the travelable
areas.