A method of displaying, on a screen of a mobile device, time on target information for an aircraft in flight. The method includes displaying a current location of the aircraft on a map, a waypoint between a departure point and a destination point, a symbol indicating the waypoint in a first area of the screen overlapping the map, and a first pop-up window in a second area of the screen overlapping the first area. The first pop-up window displays a current arrival time at the waypoint and an input area to receive an adjustment to the current arrival time. Responsive to receiving the input, second pop-up window in a third area of the screen displays a recommendation to perform a speed change to achieve the adjustment, and a second recommendation that indicates a numerical value of a recommended speed change to achieve the adjustment.